# Soneium Markdown version of https://l2beat.com/layer2s/projects/soneium ## Summary **Warning:** Why is the project listed in others? The proof system isn't fully functional. Consequence: projects without a proper proof system fully rely on single entities to safely update the state. A malicious proposer can finalize an invalid state, which can cause loss of funds. Learn more about the [recategorisation](https://medium.com/l2beat/framework-update-l2-projects-recategorisation-5d43b0d1fe50). - Total Value Secured: $19.60 M (-5.99% compared to seven days ago; canonically bridged $7.32 M, natively minted $1.23 M, externally bridged $11.03 M; 56.3% with additional trust assumptions compared to the tokens involved and the Stage assigned to the project's canonical messaging bridge) - TVS by asset: ETH & derivatives $5.84 M (29.8%), Stablecoins $6.44 M (32.8%), BTC & derivatives $2.25 M (11.5%), Other $5.05 M (25.8%) - Past day UOPS: 4.42 (+25.3% compared to seven days ago) - Gas token: ETH - Type: Other - Purpose: Universal - Host chain: Ethereum - Chain ID: 1868 ### Risks - Sequencer failure: Self sequence (12h delay; sentiment: good) - State validation: None (sentiment: bad) - Data availability: Onchain (sentiment: good) - Exit window: None (sentiment: bad) - Proposer failure: Cannot withdraw (sentiment: bad) ### About Soneium is an Optimistic rollup based on the OP Stack. It is built by Sony Block Solutions Labs and planned to stand as a versatile, general-purpose blockchain. ### Links - Website: https://soneium.org/en/ - Bridge: https://bridge.soneium.org/ - Docs: https://docs.soneium.org/docs/builders/overview - Explorer: https://soneium.blockscout.com/ - Repository: https://github.com/Soneium - Social: https://x.com/soneium, https://t.me/SoneiumOfficial, https://discord.com/invite/soneium - Other: https://rollup.codes/soneium, https://growthepie.com/chains/soneium - Contracts explorer (Disco): https://disco.l2beat.com/ui/p/soneium ### Badges - EVM: This project uses the Ethereum Virtual Machine to run its smart contracts and supports the Solidity programming language - Ethereum with blobs: This project is posting its data to Ethereum as blobs - Built on OP Stack: The project is built on the OP Stack - Part of the Superchain: The project is part of the Superchain, meaning it's included in the Superchain registry or uses the Superchain config ## Value Secured The interactive TVS charts are shown on [the HTML page](https://l2beat.com/layer2s/projects/soneium#tvs). Token by token: [TVS breakdown](https://l2beat.com/layer2s/projects/soneium/tvs-breakdown). - [TVS chart (JSON)](https://l2beat.com/api/scaling/tvs/soneium) - [TVS breakdown by token (JSON)](https://l2beat.com/api/scaling/tvs/soneium/breakdown) ## Activity The interactive activity chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/soneium#activity). - [Activity chart (JSON)](https://l2beat.com/api/scaling/activity/soneium) ## Onchain costs The section shows the operating costs that L2s pay to Ethereum. The interactive costs chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/soneium#onchain-costs). ### Tracked transactions #### Batch submissions - transfer: 2024-12-06 15:20 UTC - now; currently used; from: [0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1](https://etherscan.io/address/0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1); to: [0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e](https://etherscan.io/address/0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e) #### State updates - functionCall: 2024-12-06 15:20 UTC - now; currently used; address: [0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)` ## Data posted This section shows how much data the project publishes to its data-availability (DA) layer over time. The project currently posts data to [Ethereum](https://l2beat.com/data-availability/projects/ethereum/ethereum). The interactive data posted chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/soneium#data-posted). ### Tracked transactions #### Blob submissions - DA layer Ethereum: from block 21314185 to now; currently used; inbox: [0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e](https://etherscan.io/address/0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e); sequencers: [0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1](https://etherscan.io/address/0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1) ## Liveness This section shows how "live" the project's operators are by displaying how frequently they submit transactions of the selected type. It also highlights anomalies - significant deviations from their typical schedule. No ongoing anomalies detected. The interactive liveness chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/soneium#liveness). ### Tracked transactions #### Batch submissions - transfer: 2024-12-06 15:20 UTC - now; currently used; from: [0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1](https://etherscan.io/address/0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1); to: [0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e](https://etherscan.io/address/0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e) #### State updates - functionCall: 2024-12-06 15:20 UTC - now; currently used; address: [0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)` ## Milestones & Incidents - 2025-01-14 (incident): [Soneium RPC providers censor IP-infringing tokens](https://x.com/donnoh_eth/status/1879210463952818472). RPC providers blacklist certain tokens - can still be used by self-hosting or forcing txs from L1. - 2025-01-14: [Soneium Launch](https://x.com/soneium/status/1878988222866350348). Soneium is live on Ethereum mainnet. ## Risk summary **Warning:** The fault proof system is deployed but is not functional. The respected game type is the super permissioned game, which runs no VM and exposes no challenger, bond or challenge clock, so no dispute can be resolved by execution. Security relies entirely on the permissioned proposer, with the Guardian able to blacklist games and change the respected game type. ### Funds can be stolen if 1. a contract receives a malicious code upgrade. Both regular and emergency upgrades must be approved by both the Security Council and the Foundation. There is no delay on regular upgrades. ### MEV can be extracted if 2. the operator exploits their centralized position and frontruns user transactions. ## Risk analysis **Warning:** The fault proof system is deployed but is not functional. The respected game type is the super permissioned game, which runs no VM and exposes no challenger, bond or challenge clock, so no dispute can be resolved by execution. Security relies entirely on the permissioned proposer, with the Guardian able to blacklist games and change the respected game type. ### Sequencer failure Self sequence (12h delay; sentiment: good) In the event of a sequencer failure, users can force transactions to be included in the project's chain by sending them to L1. There can be up to a 12h delay on this operation. ### State validation None (sentiment: bad) State roots are proposed as super roots by a permissioned proposer. The respected game type exposes no challenger, VM or challenge clock, so proposals cannot be disputed by execution. Validity is governed by the AnchorStateRegistry, and the Guardian can blacklist games and change the respected game type. ### Data availability Onchain (sentiment: good) All of the data needed for proof construction is published on Ethereum L1. ### Exit window None (sentiment: bad) There is no exit window for users to exit in case of unwanted upgrades as they are initiated by the Security Council with instant upgrade power and without proper notice. ### Proposer failure Cannot withdraw (sentiment: bad) Only the whitelisted proposers can publish state roots on L1, so in the event of failure the withdrawals are frozen. ## Stage Soneium is not even a Stage 0 project. **Warning:** The requirement for available node software is under review ### Stage 0 1 issue needs fixing. - Met: A complete and functional proof system is deployed. - Met: The project calls itself a rollup. - Met: State roots are posted to Ethereum L1. - Met: Inputs for the state transition function are posted to Ethereum L1. - Under review: A source-available node exists that can recreate the state from Ethereum L1 data. Please note that the L2BEAT team has not verified the validity of the node source code. - Issue: Fraud proof submission is not sufficiently decentralized. ### Stage 1 3 issues need fixing. **Principle** - Issue: Compromising ≥75% of the Security Council should be the only way (other than bugs) for a rollup to indefinitely block an L2→L1 message (e.g. a withdrawal) or push an invalid L2→L1 message (e.g. an invalid withdrawal) with a <7d exit window. **Guidelines** - Met: The Security Council is properly set up. - Issue: Users' withdrawals can be censored by the permissioned operators. - Issue: Upgrades executed by actors with more centralized control than a Security Council provide less than 7d for users to exit if the permissioned operator is down or censoring. ### Stage 2 3 issues need fixing. - Issue: Fraud proof submission is open only to whitelisted actors. - Issue: Upgrades unrelated to onchain provable bugs provide less than 30d to exit. - Issue: The Security Council's actions are not confined to onchain provable bugs. [Learn more about Stages](https://l2beat.com/stages). Please keep in mind that these stages do not reflect project security, this is an opinionated assessment of project maturity based on subjective criteria, created with a goal of incentivizing projects to push toward better decentralization. Each team may have taken different paths to achieve this goal. ## Data availability ### All data required for proofs is published on chain All the data that is used to construct the system state is published on chain in the form of cheap blobs or calldata. This ensures that it will be available for enough time. **References** - [Derivation: Batch submission - OP Mainnet specs](https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/derivation.md#batch-submission) - [BatchInbox - address](https://etherscan.io/address/0x008dC74CecC9dedA8595B2Fe210cE5979F0BfA8e#code) - [OptimismPortal2.sol - source code, depositTransaction function](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) Learn more about the DA layer here: [Ethereum](https://l2beat.com/data-availability/projects/ethereum/ethereum) ## State derivation ### Node software The rollup node is composed of two software components: [op-node](https://github.com/ethereum-optimism/optimism/tree/develop/op-node), implementing consensus related logic, and [op-geth](https://github.com/ethereum-optimism/op-geth), implementing execution logic. The configuration file can be found [here](https://github.com/ethereum-optimism/superchain-registry/blob/main/superchain/configs/mainnet/soneium.toml). ### Compression scheme Data batches are compressed using the [zlib](https://github.com/madler/zlib) algorithm with best compression level. ### Genesis state The genesis file can be found [here](https://github.com/ethereum-optimism/superchain-registry/blob/main/superchain/extra/genesis/mainnet/soneium.json.zst). ### Data format The format specification of Sequencer's data batches can be found [here](https://optimism.io/blog/here-s-how-you-can-reproduce-op-mainnet-s-migration-to-bedrock). ## State validation State roots are proposed as super roots by a permissioned proposer. The respected game type is the super permissioned game, which carries no bond and exposes no challenge mechanics: validity is governed by the AnchorStateRegistry, and the Guardian can blacklist games and change the respected game type. ### State root proposals Only the permissioned proposer configured in the dispute game factory can create games of the respected type. Each proposal commits to a super root anchored to an L2 timestamp rather than an L2 block number. ## Upgrades & Governance ### Past upgrades The metrics include upgrades on the currently used proxy contracts. Historical proxy contracts and changes of such are not included. - Count of upgrades: 80 - Last upgrade: 16d 6h ago - Avg upgrade interval: 2mo 7d - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x670b850A235A6fA98cD7a195eB139D0277E471fA](https://etherscan.io/address/0x670b850A235A6fA98cD7a195eB139D0277E471fA#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA)) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x1005217ad392DC64CEf501FA1777A27D42166748/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x1005217ad392DC64CEf501FA1777A27D42166748](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x1005217ad392DC64CEf501FA1777A27D42166748)) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504](https://etherscan.io/address/0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504)) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xE440CC08A71694C8229323803F59024E3144630e)) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad)) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-06-25 23:05 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-06-25 23:05 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x42Ad0173051225Ac784100e9acD43349707F4db9](https://etherscan.io/address/0x42Ad0173051225Ac784100e9acD43349707F4db9#code) ([diff](https://disco.l2beat.com/diff/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9)) - 2026-06-25 23:05 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ([diff](https://disco.l2beat.com/diff/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2)) - 2026-06-25 23:05 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2026-06-25 23:05 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-06-25 23:05 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-06-25 23:05 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) - 2026-06-25 23:05 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-06-25 23:05 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) ([diff](https://disco.l2beat.com/diff/eth:0x784d2F03593A42A6E4676A012762F18775ecbBe6/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad)) - 2026-06-25 23:05 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-02-17 19:11 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c)) - 2026-02-17 19:11 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2)) - 2026-02-17 19:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B)) - 2026-02-17 19:11 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2026-02-17 19:11 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2026-02-17 19:11 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5)) - 2026-02-17 19:11 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2025-11-25 17:46 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50)) - 2025-11-25 17:46 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED)) - 2025-11-25 17:46 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202)) - 2025-11-25 17:46 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2025-11-25 17:46 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2025-11-25 17:46 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2025-11-25 17:46 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2025-10-02 16:35 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2025-10-02 16:35 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557)) - 2025-10-02 16:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999)) - 2025-10-02 16:35 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F/eth:0x7f1d12fB2911EB095278085f721e644C1f675696)) - 2025-10-02 16:35 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6)) - 2025-10-02 16:35 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E)) - 2025-07-24 18:01 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2025-07-24 18:01 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa](https://etherscan.io/address/0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa)) - 2025-07-24 18:01 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a](https://etherscan.io/address/0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a)) - 2025-07-24 18:01 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F](https://etherscan.io/address/0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F)) - 2025-07-24 18:01 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54](https://etherscan.io/address/0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54)) - 2025-07-24 18:01 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) - 2025-07-24 18:01 UTC, deployment of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x784d2F03593A42A6E4676A012762F18775ecbBe6](https://etherscan.io/address/0x784d2F03593A42A6E4676A012762F18775ecbBe6#code) - 2025-07-24 17:47 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x46acdce174c8d83ebe2f208d8c76c867e75617483d64c3e407f69ae2f9868716](https://etherscan.io/tx/0x46acdce174c8d83ebe2f208d8c76c867e75617483d64c3e407f69ae2f9868716), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2025-04-24 16:16 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647)) - 2025-04-24 16:16 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4)) - 2025-04-24 16:16 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013)) - 2025-04-24 16:16 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B)) - 2025-04-02 16:50 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0)) - 2025-04-02 16:50 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc)) - 2025-04-02 16:50 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd)) - 2025-04-02 16:50 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7)) - 2025-04-02 16:50 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0x276d3730f219f7ec22274f7263180b8452B46d47)) - 2025-04-02 16:50 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231)) - 2025-04-02 16:50 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F)) - 2025-02-28 14:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966](https://etherscan.io/tx/0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2025-02-28 14:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966](https://etherscan.io/tx/0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2025-01-20 09:43 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0x2F543A7C9cc80Cc2427c892B96263098d23ee55a#code): transaction [0xbd91ce5bc5a8c80796c11ac29b5aa78e37ad5f7b089c9a821d2ea6dbc6c60342](https://etherscan.io/tx/0xbd91ce5bc5a8c80796c11ac29b5aa78e37ad5f7b089c9a821d2ea6dbc6c60342), implementations: [0xf034dE8BD85A434d9Dc68F03382B589f86791425](https://etherscan.io/address/0xf034dE8BD85A434d9Dc68F03382B589f86791425#code) - 2024-12-24 11:05 UTC, deployment of [L1OpUSDCBridgeAdapter](https://etherscan.io/address/0xC67A8c5f22b40274Ca7C4A56Db89569Ee2AD3FAb#code): transaction [0x7bff56936a70f2b482f4b32df6bcfcc5c76b64aae40f7e8a4c5c666c328fa44d](https://etherscan.io/tx/0x7bff56936a70f2b482f4b32df6bcfcc5c76b64aae40f7e8a4c5c666c328fa44d), implementations: [0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07](https://etherscan.io/address/0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07#code) - 2024-12-02 10:19 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xc641A33cab81C559F2bd4b21EA34C290E2440C2B](https://etherscan.io/address/0xc641A33cab81C559F2bd4b21EA34C290E2440C2B#code) - 2024-12-02 10:19 UTC, deployment of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xF56D96B2535B932656d3c04Ebf51baBff241D886](https://etherscan.io/address/0xF56D96B2535B932656d3c04Ebf51baBff241D886#code) - 2024-12-02 10:19 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xe2F826324b2faf99E513D16D266c3F80aE87832B](https://etherscan.io/address/0xe2F826324b2faf99E513D16D266c3F80aE87832B#code) - 2024-12-02 10:19 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) - 2024-12-02 10:19 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) - 2024-12-02 10:19 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) - 2024-06-10 18:29 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0](https://etherscan.io/tx/0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x53c165169401764778F780a69701385eb0FF19B7/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2024-06-10 18:29 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0](https://etherscan.io/tx/0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0), implementations: [0x53c165169401764778F780a69701385eb0FF19B7](https://etherscan.io/address/0x53c165169401764778F780a69701385eb0FF19B7#code) ([diff](https://disco.l2beat.com/diff/eth:0x53c165169401764778F780a69701385eb0FF19B7/eth:0x53c165169401764778F780a69701385eb0FF19B7)) - 2024-01-22 20:19 UTC, deployment of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x8ba0e42b89cde22310b644ed30fd44e4a348619a165a54c908e7dc341e9bbd0c](https://etherscan.io/tx/0x8ba0e42b89cde22310b644ed30fd44e4a348619a165a54c908e7dc341e9bbd0c), implementations: [0x53c165169401764778F780a69701385eb0FF19B7](https://etherscan.io/address/0x53c165169401764778F780a69701385eb0FF19B7#code) ## Updates Each date links the update on the HTML page, which also shows its contract diffs. ### [2026-10-01 13:45 UTC](https://l2beat.com/layer2s/projects/soneium?update=21232ddf) (high severity, 109 changes) OP Contracts Upgrade 20 (op-contracts/v8.0.0-rc.3), executed 2026-09-24. State roots are now proposed as super roots, which are addressed by an L2 timestamp rather than by a block number on this chain. The starting anchor sequence number is therefore a timestamp, changing from 5084269 to 1788848425. The format carries per-chain roots for a future interop set; today each game commits only to this chain. Proving a withdrawal now requires a game whose sequence number is at or after the timestamp of the initiating block rather than its block number; `proveWithdrawalTransaction` is unchanged, as the portal reads this chain's output root out of the super root. The respected game type changed 1 → 5, PERMISSIONED_CANNON to SUPER_PERMISSIONED. Game types 0, 1 and 8 were cleared and type 5 is the only type registered; no permissionless type is installed. The type 5 game defines only a proposer and an anchor state registry. It carries no bond, runs no VM and has no challenger, so proposals cannot be disputed by execution and the OP Foundation Operations Safe no longer holds a challenger role. Validity is governed by the AnchorStateRegistry, and the Guardian can blacklist games and change the respected game type. SystemConfig v3.14.2 → v4.0.0 removes the `batchInbox()` getter; the batch inbox address now lives only in the rollup config. The Soneium Multisig moved from Safe 1.4.1 to Safe 1.5.0 and its signer set was replaced: 6 members reduced to 5, threshold unchanged at 3. Version changes and implementation diffs: - PermissionedDisputeGame -> SuperPermissionedDisputeGame (type 1 -> 5): https://disco.l2beat.com/diff/eth:0xe1dFFCBE4e22B813F26d2106D943C102e7cAb87e/eth:0x5C3eb47cB0174aea522a2a9Ae79487139A53D691 - Soneium Multisig implementation rotated: https://disco.l2beat.com/diff/eth:0x41675C099F32341bf84BFc5382aF534df5C7461a/eth:0xFf51A5898e281Db6DfC7855790607438dF2ca44b - SystemConfig 3.14.2 -> 4.0.0: https://disco.l2beat.com/diff/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA - OptimismPortal2 5.6.1 -> 5.8.0: https://disco.l2beat.com/diff/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2/eth:0x1005217ad392DC64CEf501FA1777A27D42166748 - SuperchainConfig 2.4.2 -> 2.4.3: https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504 ### [2026-09-10 12:50 UTC](https://l2beat.com/layer2s/projects/soneium?update=b32adc2e) (2 changes) Refresh config-derived discovery metadata at the main-branch block. ### [2026-09-10 12:50 UTC](https://l2beat.com/layer2s/projects/soneium?update=1909b060) (1 change) Optimism Security Council: Member rotated. ### [2026-07-17 10:14 UTC](https://l2beat.com/layer2s/projects/soneium?update=3721600c) (4 changes) OpFoundation shared Safes (UpgradeSafe + OperationsSafe): 2 members rotated. ### [2026-07-01 09:38 UTC](https://l2beat.com/layer2s/projects/soneium?update=128d1cfd) (high severity, 130 changes) Upgrade 19b "Karst" (op-contracts/v7.0.0): core L1 contracts upgraded to their v7 implementations (OptimismPortal2, SystemConfig, DisputeGameFactory, AnchorStateRegistry, bridges, etc.). The chain remains on permissioned fault proofs (respected game type 1); it did not move to CANNON_KONA. ### [2026-05-15 13:08 UTC](https://l2beat.com/layer2s/projects/soneium?update=fc8d2f1c) (4 changes) Scheduled signer-key rotation on shared OP Stack governance contracts (no threshold or permission changes): - DeputyPauseModule (`0x76fC2F971FB355D0453cF9F64d3F9E4f640E1754`): `deputy` rotated from `0x352f1defB49718e7Ea411687E850aA8d6299F7aC` to `0x2fA150379bF32b6d79Eeb4ff9bD280E76049a87c`. Executed via [superchain-ops eth/052](https://github.com/ethereum-optimism/superchain-ops/pull/1399); the [DeputyPauseModule spec](https://specs.optimism.io/protocol/deputy-pause-module.html) specifies that this is a regular rotation. - OpFoundationUpgradeSafe and OpFoundationOperationsSafe: Member rotated. ### [2026-05-05 15:17 UTC](https://l2beat.com/layer2s/projects/soneium?update=bea2e1b9) (1 change) Optimism Security Council (`eth:0xc2819DC7...`) — member 12 swap: `0x92827223` → `0xcbC7dCeb`. Shared multisig (referenced by multiple Superchain projects). ### [2026-03-25 10:06 UTC](https://l2beat.com/layer2s/projects/soneium?update=f3346f20) (7 changes) Three signers of the shared OpFoundation multisigs (OpFoundationUpgradeSafe and OpFoundationOperationsSafe) were rotated. The old signer at position 0 was a GnosisSafe (0x42d27eEA1AD6e22Af6284F609847CB3Cd56B9c64) which was replaced by a new EOA. ### [2026-02-27 13:19 UTC](https://l2beat.com/layer2s/projects/soneium?update=f7cc47be) (2 changes) Optimism Security Council: 2 members replaced. ### [2026-02-19 10:11 UTC](https://l2beat.com/layer2s/projects/soneium?update=cfa271f4) (high severity, 49 changes) Upgrade to op-contracts/v6.0.0-rc.1 (Upgrade 18 - "Cannon + Kona and Custom Gas Token v2"). Approved via Optimism governance. AnchorStateRegistry (v3.5.0 → v3.7.0): now the central authority for game validity and anchor state management. Adds granular game validation (isGameRegistered, isGameRespected, isGameBlacklisted, isGameRetired, isGameFinalized, isGameClaimValid). Stores disputeGameFactory directly, delegates pause logic to SystemConfig. [diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5) DisputeGameFactory (v1.3.0 → v1.4.0): adds the "Creator Pattern" refactor with new `gameArgs` storage mapping and overloaded `setImplementation()` accepting CWIA args. Enables a single dispute game implementation to serve multiple game types (e.g., CANNON and CANNON_KONA) with different configuration. [diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c) OptimismPortal2 (v5.1.1 → v5.2.0): adds Custom Gas Token mode enforcement (reverts on native ETH ops in CGT mode), ETHLockbox integration for ETH custody during deposits/withdrawals. Legacy getters (disputeGameFactory, disputeGameFinalityDelaySeconds, etc.) now proxy through AnchorStateRegistry. [diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B) SystemConfig (v3.11.0 → v3.13.1): replaces hardcoded custom gas token logic with feature flag system (`isFeatureEnabled` mapping). New state variables: daFootprintGasScalar, minBaseFee, l2ChainId, superchainConfig reference. Updated `isCustomGasToken()` and `paused()` to read from feature flags. [diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2) Old PermissionedDisputeGame (v1.8.0) deleted, replaced by PermissionedDisputeGameV2 (v2.2.0) inheriting from FaultDisputeGameV2 with dual credit tracking (normalModeCredit/refundModeCredit), bond distribution mode system, and credit unlock mechanism. [diff](https://disco.l2beat.com/diff/eth:0x0ddf929eeda8949CfE77b7e7e46e426E15A2D8f1/eth:0x58bf355C5d4EdFc723eF89d99582ECCfd143266A) L1ERC721Bridge, L1CrossDomainMessenger, OptimismMintableERC20Factory also upgraded (implementation changes only). ### [2026-01-24 16:33 UTC](https://l2beat.com/layer2s/projects/soneium?update=fa0e13bf) (3 changes) SaferSafes module (LivenessModule + TimelockGuard) added to OpFoundationUpgradeSafe and OpFoundationOperationsSafe. Timelock delays currently 0. ### [2025-12-18 08:58 UTC](https://l2beat.com/layer2s/projects/soneium?update=8e9a85af) (high severity, 14 changes) upgrade to safe 1.4.1 ### [2025-12-05 11:24 UTC](https://l2beat.com/layer2s/projects/soneium?update=d71e9fdb) (2 changes) Multisig member change. ### [2025-11-28 10:09 UTC](https://l2beat.com/layer2s/projects/soneium?update=14177f52) (high severity, 63 changes) 'Jovian' Upgrade + Fusaka Readiness: https://gov.optimism.io/t/upgrade-17-jovian-hardfork-and-fusaka-readiness/10400 [OptimismPortal2](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202), [System Config](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED) - Jovian block values - fee updates `MIN_BASE_FEE`, `DA_FOOTPRINT_GAS_SCALAR` and operator fee [L1StandardBridge](https://disco.l2beat.com/diff/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A), [SuperchainConfig](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957), [OptimismMintableERC20Factory](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB), [DisputeGameFactory](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50), [L1ERC721Bridge](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9),[L1CrossDomainMessenger](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0), [MIPS](https://disco.l2beat.com/diff/eth:0x07BABE08EE4D07dBA236530183B24055535A7011/eth:0x6463dEE3828677F6270d83d45408044fc5eDB908), [PermissionedDisputeGame](https://disco.l2beat.com/diff/eth:0x5562D33B68fa20572FC58fA36aB19CCFeDD6eE8f/eth:0x467E6a8D6916E7394F9715b4DE9339ee36887382) - minimal diff ### [2025-11-04 17:12 UTC](https://l2beat.com/layer2s/projects/soneium?update=977cb2fc) (1 change) gas market changes. ### [2025-10-23 12:39 UTC](https://l2beat.com/layer2s/projects/soneium?update=6913c543) (2 changes) msig change. ### [2025-10-03 14:24 UTC](https://l2beat.com/layer2s/projects/soneium?update=41a013f9) (high severity, 58 changes) This is upgrade 16a (https://gov.optimism.io/t/maintenance-upgrade-proposal-u16a/10288) OptimismPortal2 - removed unused superchain withdrawal code, ETH lockbox feature moved out to its own contract. https://disco.l2beat.com/diff/eth:0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999 SystemConfig - setFeature function to activate/deactivate features (currently used for the ETHLockbox feature). https://disco.l2beat.com/diff/eth:0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557 L1ERC721Bridge - minor changes. https://disco.l2beat.com/diff/eth:0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F/eth:0x7f1d12fB2911EB095278085f721e644C1f675696 L1CrossDomainMessenger - minor changes. https://disco.l2beat.com/diff/eth:0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6 L1StandardBridge - minor changes. https://disco.l2beat.com/diff/eth:0x44AfB7722AF276A601D524F429016A18B6923df0/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb PermissionedDisputeGame (via DisputeGameFactory gameImpls[1]) - no code changes; constructor variables updated (e.g., DelayedWETH, VM). https://disco.l2beat.com/diff/eth:0x3c12f1F4F0702CB7fC83e2e5594331c10b9e39b4/eth:0xB4343238bfC15aA0104276c00F88B54D2de3d6F1 MIPS → MIPS64 - added function for pseudorandomness generation. https://disco.l2beat.com/diff/eth:0xA1B54D89e305bcd322Ba0C9C094093173C0d6b3a/eth:0x07BABE08EE4D07dBA236530183B24055535A7011 DelayedWETH (replacement) - same code, same admin; only diff is totalSupply. https://disco.l2beat.com/diff/eth:0x372dC0B87b790D6e1308CF9e7f73F0F1fcbD3754/eth:0x70277624cdE90492231Eb23309e1251Beb18Dff5 ### [2025-09-29 14:49 UTC](https://l2beat.com/layer2s/projects/soneium?update=0f300c05) (1 change) Increase in EIP-1559 elasticity (from 8 to 9), meaning that in periods of high demand the block can expand up to 9x the block gas target. ### [2025-08-18 09:00 UTC](https://l2beat.com/layer2s/projects/soneium?update=27698393) (2 changes) Security council members rotation. ### [2025-07-25 17:48 UTC](https://l2beat.com/layer2s/projects/soneium?update=121c7f76) (high severity, 126 changes) Check optimism diffhistory for [the upgrade 16 breakdown](https://gov.optimism.io/t/upgrade-16-proposal-interop-contracts-stage-1-and-go-1-23-support-in-cannon/10037). ### [2025-07-14 12:46 UTC](https://l2beat.com/layer2s/projects/soneium?update=45a0bccb) (30 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-05-08 08:50 UTC](https://l2beat.com/layer2s/projects/soneium?update=290530b8) (3 changes) OP stack DeputyPauser upgrade (see op mainnet for more info). ### [2025-04-25 13:16 UTC](https://l2beat.com/layer2s/projects/soneium?update=091522c5) (high severity, 61 changes) [Isthmus upgrade](https://vote.optimism.io/proposals/8705916809146420472067303211131851783087744913535435360574720946039078686841): - upgraded proof system VM: MIPS (MT-Cannon MIPS64) - operator fee (fee mechanism to improve fee config for zk proven and alt-DA systems) - pectra readiness ### [2025-04-06 08:10 UTC](https://l2beat.com/layer2s/projects/soneium?update=388a5c88) (2 changes) eip 1559 gas conf added. ### [2025-04-04 09:40 UTC](https://l2beat.com/layer2s/projects/soneium?update=21bc44c3) (high severity, 78 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-03-07 13:56 UTC](https://l2beat.com/layer2s/projects/soneium?update=561654de) (7 changes) Single member added to SoneiumMultisig. ### [2025-03-03 09:03 UTC](https://l2beat.com/layer2s/projects/soneium?update=d9882500) (high severity, 14 changes) SystemConfig upgrade to known version: - libraries added (Constants, LibString, GasPayingToken) - minor changes ### [2025-02-26 16:48 UTC](https://l2beat.com/layer2s/projects/soneium?update=16e985d9) (1 change) gasLimit raised a bit (60M->30M in last update). config related: added categories for all opstack, op stack and polygoncdk stack templates. ### [2025-02-18 10:39 UTC](https://l2beat.com/layer2s/projects/soneium?update=7e304e4a) (1 change) Soneium gas limit halved (checked on l2 block explorer since some op stacks have weird custom gas config). ### [2025-02-12 10:00 UTC](https://l2beat.com/layer2s/projects/soneium?update=a5169023) (2 changes) Optimism SecurityCouncil rotates signers. ### [2025-02-08 15:58 UTC](https://l2beat.com/layer2s/projects/soneium?update=c5f0da11) (2 changes) Single SC member rotated. ### [2025-02-06 09:17 UTC](https://l2beat.com/layer2s/projects/soneium?update=01cba5d1) (1 change) OP Stack SC signer rotation. ### [2025-02-04 14:08 UTC](https://l2beat.com/layer2s/projects/soneium?update=340dbb94) (1 change) Added standard lido external canonical escrow (shapes in stock). ### [2025-01-27 12:04 UTC](https://l2beat.com/layer2s/projects/soneium?update=e2f22d1d) (2 changes) Soneium external bridge gov change. ### [2025-01-22 12:20 UTC](https://l2beat.com/layer2s/projects/soneium?update=3af4d993) (7 changes) MS member changes. ### [2025-01-15 17:33 UTC](https://l2beat.com/layer2s/projects/soneium?update=5829ccae) (28 changes) First discovery of Soneium. ## Operator ### The system has a centralized operator The operator is the only entity that can propose blocks. A live and trustworthy operator is vital to the health of the system. **Risks** - MEV can be extracted if the operator exploits their centralized position and frontruns user transactions. ### Users can force any transaction Because the state of the system is based on transactions submitted on the underlying host chain and anyone can submit their transactions there it allows the users to circumvent censorship by interacting with the smart contract on the host chain directly. **References** - [Sequencing Window - OP Mainnet Specs](https://github.com/ethereum-optimism/optimism/blob/51eeb76efeb32b3df3e978f311188aa29f5e3e94/specs/glossary.md#sequencing-window) - [OptimismPortal2.sol - source code, depositTransaction function](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) ## Withdrawals ### Regular exits The user initiates the withdrawal by submitting a regular transaction on this chain. When a state root containing such transaction is settled, the funds become available for withdrawal on L1 after 3d 12h. Withdrawal inclusion can be proven before state root settlement, but a 7d period has to pass before it becomes actionable. The respected game type carries no on-chain challenge process, so settlement waits only for the delays above. Finally the user submits an L1 transaction to claim the funds. This transaction requires a merkle proof. **References** - [OptimismPortal2.sol - Etherscan source code, proveWithdrawalTransaction function](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) - [OptimismPortal2.sol - Etherscan source code, finalizeWithdrawalTransaction function](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) ### Forced messaging If the user experiences censorship from the operator with regular L2->L1 messaging they can submit their messages directly on L1. The system is then obliged to service this request or halt all messages, including forced withdrawals from L1 and regular messages initiated on L2. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message. **References** - [Forced withdrawal from an OP Stack blockchain](https://docs.optimism.io/stack/transactions/forced-transaction) ## Other considerations ### EVM compatible smart contracts are supported OP stack chains are pursuing the EVM Equivalence model. No changes to smart contracts are required regardless of the language they are written in, i.e. anything deployed on L1 can be deployed on L2. **References** - [Introducing EVM Equivalence](https://medium.com/ethereum-optimism/introducing-evm-equivalence-5c2021deb306) ## Permissions Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/soneium ### Ethereum #### Actors ##### SuperchainProxyAdminOwner Addresses: [0x5a0Aae59D09fccBdDb6C6CcEB07B7279367C3d2A](https://etherscan.io/address/0x5a0Aae59D09fccBdDb6C6CcEB07B7279367C3d2A) A Multisig with 2/2 threshold. - Can upgrade **with no delay** - DelayedWETH [via: ProxyAdmin] - AnchorStateRegistry [via: ProxyAdmin] - DisputeGameFactory [via: ProxyAdmin] - L1ERC721Bridge [via: ProxyAdmin] - ETHLockbox [via: ProxyAdmin] - SystemConfig [via: ProxyAdmin] - OptimismPortal2 [via: ProxyAdmin] - SuperchainConfig [via: SuperchainProxyAdmin] - L1CrossDomainMessenger [via: ProxyAdmin] - OptimismMintableERC20Factory [via: ProxyAdmin] - L1StandardBridge [via: ProxyAdmin] - Can interact with DisputeGameFactory - set the dispute game implementation and initial bond for any game type - Can interact with AddressManager - set and change address mappings [via: ProxyAdmin] - Can interact with AddressManager - set and change address mappings [via: SuperchainProxyAdmin] Participants (2): [0x847B5c174615B1B7fDF770882256e2D3E95b9D92](https://l2beat.com/layer2s/projects/soneium#OpFoundationUpgradeSafe) (OpFoundationUpgradeSafe), [0xc2819DC788505Aac350142A7A707BF9D03E3Bd03](https://l2beat.com/layer2s/projects/soneium#Optimism Security Council) (Optimism Security Council) Used in: [Celo](https://l2beat.com/layer2s/projects/celo#SuperchainProxyAdminOwner), [Cyber](https://l2beat.com/layer2s/projects/cyber#SuperchainProxyAdminOwner), [Funki](https://l2beat.com/layer2s/projects/funki#SuperchainProxyAdminOwner), [Ink](https://l2beat.com/layer2s/projects/ink#SuperchainProxyAdminOwner), [Lisk](https://l2beat.com/layer2s/projects/lisk#SuperchainProxyAdminOwner), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SuperchainProxyAdminOwner), [Settlus](https://l2beat.com/layer2s/projects/settlus#SuperchainProxyAdminOwner), [Shape](https://l2beat.com/layer2s/projects/shape#SuperchainProxyAdminOwner), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainProxyAdminOwner), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainProxyAdminOwner) ##### Soneium Multisig Addresses: [0x509182eC226b3B71D36A3255A80EF0b1A9D43033](https://etherscan.io/address/0x509182eC226b3B71D36A3255A80EF0b1A9D43033) A Multisig with 3/5 threshold. - Can interact with SystemConfig - it can update the preconfer address, the batch submitter (Sequencer) address and the gas configuration of the system Participants (5): [0x0e22018D5D2E676aD5f72F0Ac435b001Eb6d07E0](https://etherscan.io/address/0x0e22018D5D2E676aD5f72F0Ac435b001Eb6d07E0), [0x9c60eE40a77f76E59D92C0F860FE22b581b70587](https://etherscan.io/address/0x9c60eE40a77f76E59D92C0F860FE22b581b70587), [0x989a65FfBe51B22987c08F722Ba09cB3784e7DAd](https://etherscan.io/address/0x989a65FfBe51B22987c08F722Ba09cB3784e7DAd), [0xEFe58621C63620CF4d7F6027fD867455e2e8dBdD](https://etherscan.io/address/0xEFe58621C63620CF4d7F6027fD867455e2e8dBdD), [0x08968F6Ebf7bfd3987410d5dafd45d59B5537a0e](https://etherscan.io/address/0x08968F6Ebf7bfd3987410d5dafd45d59B5537a0e) ##### OpFoundationUpgradeSafe Addresses: [0x847B5c174615B1B7fDF770882256e2D3E95b9D92](https://etherscan.io/address/0x847B5c174615B1B7fDF770882256e2D3E95b9D92) A Multisig with 5/7 threshold. It uses the following modules: SaferSafes (A Gnosis Safe module combining LivenessModule and TimelockGuard. Provides liveness checks where a fallback owner can challenge and take over if Safe owners are unresponsive, plus optional timelock delays for transaction scheduling). Member of SuperchainProxyAdminOwner. - Can interact with SuperchainConfig - Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless) [via: LivenessModule if the number of Optimism Security Council members falls below 8 → Optimism Security Council → Optimism Guardian Multisig] Participants (7): [0xf1EfbdC2C0BDC4554E0f1639D7fe88cD870a4639](https://etherscan.io/address/0xf1EfbdC2C0BDC4554E0f1639D7fe88cD870a4639), [0x3041BA32f451F5850c147805F5521AC206421623](https://etherscan.io/address/0x3041BA32f451F5850c147805F5521AC206421623), [0xC2Db495f5a1F91172A361AAFA6FdE47c41de6dF5](https://etherscan.io/address/0xC2Db495f5a1F91172A361AAFA6FdE47c41de6dF5), [0x7F1D4FE689B73B628285454667B93cfd09409f27](https://etherscan.io/address/0x7F1D4FE689B73B628285454667B93cfd09409f27), [0x4D014f3c5F33Aa9Cd1Dc29ce29618d07Ae666d15](https://etherscan.io/address/0x4D014f3c5F33Aa9Cd1Dc29ce29618d07Ae666d15), [0x69acfE2096Dfb8d5A041eF37693553c48d9BFd02](https://etherscan.io/address/0x69acfE2096Dfb8d5A041eF37693553c48d9BFd02), [0xa2A58E31C03C59e34ab4d996d811DA0C035BfDea](https://etherscan.io/address/0xa2A58E31C03C59e34ab4d996d811DA0C035BfDea) Used in: [Celo](https://l2beat.com/layer2s/projects/celo#OpFoundationUpgradeSafe), [Cyber](https://l2beat.com/layer2s/projects/cyber#OpFoundationUpgradeSafe), [Funki](https://l2beat.com/layer2s/projects/funki#OpFoundationUpgradeSafe), [Ink](https://l2beat.com/layer2s/projects/ink#OpFoundationUpgradeSafe), [Lisk](https://l2beat.com/layer2s/projects/lisk#OpFoundationUpgradeSafe), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#OpFoundationUpgradeSafe), [Settlus](https://l2beat.com/layer2s/projects/settlus#OpFoundationUpgradeSafe), [Shape](https://l2beat.com/layer2s/projects/shape#OpFoundationUpgradeSafe), [Unichain](https://l2beat.com/layer2s/projects/unichain#OpFoundationUpgradeSafe), [World Chain](https://l2beat.com/layer2s/projects/world#OpFoundationUpgradeSafe) ##### SaferSafes Addresses: [0xA8447329e52F64AED2bFc9E7a2506F7D369f483a](https://etherscan.io/address/0xA8447329e52F64AED2bFc9E7a2506F7D369f483a) A Gnosis Safe module combining LivenessModule and TimelockGuard. Provides liveness checks where a fallback owner can challenge and take over if Safe owners are unresponsive, plus optional timelock delays for transaction scheduling. - Can interact with SuperchainConfig - Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless) [via: OpFoundationUpgradeSafe → LivenessModule if the number of Optimism Security Council members falls below 8 → Optimism Security Council → Optimism Guardian Multisig] Used in: [Celo](https://l2beat.com/layer2s/projects/celo#SaferSafes), [Cyber](https://l2beat.com/layer2s/projects/cyber#SaferSafes), [Funki](https://l2beat.com/layer2s/projects/funki#SaferSafes), [Ink](https://l2beat.com/layer2s/projects/ink#SaferSafes), [Lisk](https://l2beat.com/layer2s/projects/lisk#SaferSafes), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SaferSafes), [Settlus](https://l2beat.com/layer2s/projects/settlus#SaferSafes), [Shape](https://l2beat.com/layer2s/projects/shape#SaferSafes), [Unichain](https://l2beat.com/layer2s/projects/unichain#SaferSafes), [World Chain](https://l2beat.com/layer2s/projects/world#SaferSafes) ##### Optimism Security Council Addresses: [0xc2819DC788505Aac350142A7A707BF9D03E3Bd03](https://etherscan.io/address/0xc2819DC788505Aac350142A7A707BF9D03E3Bd03) A Multisig with 10/13 threshold. It uses the following modules: LivenessModule (used to remove members inactive for 3mo 8d while making sure that the threshold remains above 75%. If the number of members falls below 8, the OpFoundationUpgradeSafe takes ownership of the multisig). Member of Optimism Guardian Multisig, SuperchainProxyAdminOwner. - Can interact with SuperchainConfig - Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless) [via: Optimism Guardian Multisig] Participants (13): [0xE61F12136bA47De67D15a1D59fE2f383ec5176aE](https://etherscan.io/address/0xE61F12136bA47De67D15a1D59fE2f383ec5176aE), [0x652BC529E171847E2fFddCeA13567643C84ccB5f](https://etherscan.io/address/0x652BC529E171847E2fFddCeA13567643C84ccB5f), [0x5c1f9E9384Ca9fE0499277F6a015a2ac0A317a81](https://etherscan.io/address/0x5c1f9E9384Ca9fE0499277F6a015a2ac0A317a81), [0x4A7322258c9E690e4CB8Cea6e5251443E956e61E](https://etherscan.io/address/0x4A7322258c9E690e4CB8Cea6e5251443E956e61E), [0x3A53B4B081Eb7Cb00C46497b16Ea22e65E4Faa94](https://etherscan.io/address/0x3A53B4B081Eb7Cb00C46497b16Ea22e65E4Faa94), [0xEF9A98511939eEe6Ec69af62082E3F2ff606877c](https://etherscan.io/address/0xEF9A98511939eEe6Ec69af62082E3F2ff606877c), [0x6323ef2b80030f3fBc508bFc321Fc71fDB95c865](https://etherscan.io/address/0x6323ef2b80030f3fBc508bFc321Fc71fDB95c865), [0xd5b735b676A043a53946C3b6F6BE28c1ECE6aC90](https://etherscan.io/address/0xd5b735b676A043a53946C3b6F6BE28c1ECE6aC90), [0x7ed8d9Af9eaA194D1A75C67c1475579E42289E39](https://etherscan.io/address/0x7ed8d9Af9eaA194D1A75C67c1475579E42289E39), [0xd91530dB01c60C6B3b824707D33fb0771aB85930](https://etherscan.io/address/0xd91530dB01c60C6B3b824707D33fb0771aB85930), [0x0a8742365a7EB0A3698293ac54357B5Ac04cefE6](https://etherscan.io/address/0x0a8742365a7EB0A3698293ac54357B5Ac04cefE6), [0xbfA046B0bc5cEa1596be62B8b3f79f9f41f1E0d9](https://etherscan.io/address/0xbfA046B0bc5cEa1596be62B8b3f79f9f41f1E0d9), [0xcbC7dCeb857F0b25523618cCa0A03c419a6d7eA6](https://etherscan.io/address/0xcbC7dCeb857F0b25523618cCa0A03c419a6d7eA6) Used in: [Celo](https://l2beat.com/layer2s/projects/celo#Optimism%20Security%20Council), [Cyber](https://l2beat.com/layer2s/projects/cyber#Optimism%20Security%20Council), [Funki](https://l2beat.com/layer2s/projects/funki#Optimism%20Security%20Council), [Ink](https://l2beat.com/layer2s/projects/ink#Optimism%20Security%20Council), [Lisk](https://l2beat.com/layer2s/projects/lisk#Optimism%20Security%20Council), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#Optimism%20Security%20Council), [Settlus](https://l2beat.com/layer2s/projects/settlus#Optimism%20Security%20Council), [Shape](https://l2beat.com/layer2s/projects/shape#Optimism%20Security%20Council), [Unichain](https://l2beat.com/layer2s/projects/unichain#Optimism%20Security%20Council), [World Chain](https://l2beat.com/layer2s/projects/world#Optimism%20Security%20Council) ##### LivenessGuard Addresses: [0x24424336F04440b1c28685a38303aC33C9D14a25](https://etherscan.io/address/0x24424336F04440b1c28685a38303aC33C9D14a25) Modular contract to be used together with the LivenessModule. Tracks liveness / activity of Safe owners. - Can interact with LivenessModule - can remove members of Optimism Security Council inactive for 3mo 8d Used in: [Celo](https://l2beat.com/layer2s/projects/celo#LivenessGuard), [Cyber](https://l2beat.com/layer2s/projects/cyber#LivenessGuard), [Funki](https://l2beat.com/layer2s/projects/funki#LivenessGuard), [Ink](https://l2beat.com/layer2s/projects/ink#LivenessGuard), [Lisk](https://l2beat.com/layer2s/projects/lisk#LivenessGuard), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#LivenessGuard), [Settlus](https://l2beat.com/layer2s/projects/settlus#LivenessGuard), [Shape](https://l2beat.com/layer2s/projects/shape#LivenessGuard), [Unichain](https://l2beat.com/layer2s/projects/unichain#LivenessGuard), [World Chain](https://l2beat.com/layer2s/projects/world#LivenessGuard) ##### Optimism Guardian Multisig Addresses: [0x09f7150D8c019BeF34450d6920f6B3608ceFdAf2](https://etherscan.io/address/0x09f7150D8c019BeF34450d6920f6B3608ceFdAf2) A Multisig with 1/1 threshold. It uses the following modules: DeputyPauseModule (Allows 0x2fA150379bF32b6d79Eeb4ff9bD280E76049a87c, called the deputy pauser, to act on behalf of the OpFoundationUpgradeSafe if set as its Safe module). Participants (1): [0xc2819DC788505Aac350142A7A707BF9D03E3Bd03](https://l2beat.com/layer2s/projects/soneium#Optimism Security Council) (Optimism Security Council) Used in: [Celo](https://l2beat.com/layer2s/projects/celo#Optimism%20Guardian%20Multisig), [Cyber](https://l2beat.com/layer2s/projects/cyber#Optimism%20Guardian%20Multisig), [Funki](https://l2beat.com/layer2s/projects/funki#Optimism%20Guardian%20Multisig), [Ink](https://l2beat.com/layer2s/projects/ink#Optimism%20Guardian%20Multisig), [Lisk](https://l2beat.com/layer2s/projects/lisk#Optimism%20Guardian%20Multisig), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#Optimism%20Guardian%20Multisig), [Settlus](https://l2beat.com/layer2s/projects/settlus#Optimism%20Guardian%20Multisig), [Shape](https://l2beat.com/layer2s/projects/shape#Optimism%20Guardian%20Multisig), [Unichain](https://l2beat.com/layer2s/projects/unichain#Optimism%20Guardian%20Multisig), [World Chain](https://l2beat.com/layer2s/projects/world#Optimism%20Guardian%20Multisig) ##### EOA 1 Addresses: [0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1](https://etherscan.io/address/0x6776BE80dBAda6A02B5F2095cF13734ac303B8d1) - Can interact with SystemConfig - Allowed to commit transactions from the current layer to the host chain ##### Optimism EOA 1 Addresses: [0x2fA150379bF32b6d79Eeb4ff9bD280E76049a87c](https://etherscan.io/address/0x2fA150379bF32b6d79Eeb4ff9bD280E76049a87c) - Can interact with SuperchainConfig - Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless) [via: DeputyPauseModule though restricted to the SuperchainConfig's `pause()` function → Optimism Guardian Multisig] Used in: [Celo](https://l2beat.com/layer2s/projects/celo#Optimism%20EOA%201), [Cyber](https://l2beat.com/layer2s/projects/cyber#Optimism%20EOA%201), [Funki](https://l2beat.com/layer2s/projects/funki#Optimism%20EOA%201), [Ink](https://l2beat.com/layer2s/projects/ink#Optimism%20EOA%201), [Lisk](https://l2beat.com/layer2s/projects/lisk#Optimism%20EOA%201), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#Optimism%20EOA%201), [Settlus](https://l2beat.com/layer2s/projects/settlus#Optimism%20EOA%201), [Shape](https://l2beat.com/layer2s/projects/shape#Optimism%20EOA%201), [Unichain](https://l2beat.com/layer2s/projects/unichain#Optimism%20EOA%201), [World Chain](https://l2beat.com/layer2s/projects/world#Optimism%20EOA%201) ## Smart contracts ![A diagram of the smart contract architecture](https://l2beat.com/static/images/architecture/opstack-rollup-superchain-opfp.b21f58d7.png) Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/soneium ### Ethereum #### DisputeGameFactory Addresses: [0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code), [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 11, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 26d) - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-06-25 23:05 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-02-17 19:11 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c)) - 2025-11-25 17:46 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50)) - 2025-10-02 16:35 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2025-07-24 18:01 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2025-04-02 16:50 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0)) - 2024-12-02 10:19 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x512A3d2c7a43BD9261d2B8E8C9c70D4bd4D503C0#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xc641A33cab81C559F2bd4b21EA34C290E2440C2B](https://etherscan.io/address/0xc641A33cab81C559F2bd4b21EA34C290E2440C2B#code) The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them. This variant exposes per-type reads only; the legacy array views (gameImpls[], initBonds[]) were removed in the new implementation. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner - **owner**: SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#DisputeGameFactory), [BOB](https://l2beat.com/layer2s/projects/bob#DisputeGameFactory), [Ink](https://l2beat.com/layer2s/projects/ink#DisputeGameFactory), [Metal](https://l2beat.com/layer2s/projects/metal#DisputeGameFactory), [Mode Network](https://l2beat.com/layer2s/projects/mode#DisputeGameFactory), [Nillion](https://l2beat.com/layer2s/projects/nillion#DisputeGameFactory), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#DisputeGameFactory), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#DisputeGameFactory), [Phala](https://l2beat.com/layer2s/projects/phala#DisputeGameFactory), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#DisputeGameFactory), [Settlus](https://l2beat.com/layer2s/projects/settlus#DisputeGameFactory), [Shape](https://l2beat.com/layer2s/projects/shape#DisputeGameFactory), [Superseed](https://l2beat.com/layer2s/projects/superseed#DisputeGameFactory), [Unichain](https://l2beat.com/layer2s/projects/unichain#DisputeGameFactory), [World Chain](https://l2beat.com/layer2s/projects/world#DisputeGameFactory), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#DisputeGameFactory), [Zora](https://l2beat.com/layer2s/projects/zora#DisputeGameFactory) #### SystemConfig Addresses: [0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code), [0x670b850A235A6fA98cD7a195eB139D0277E471fA](https://etherscan.io/address/0x670b850A235A6fA98cD7a195eB139D0277E471fA#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 15, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 12d) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x670b850A235A6fA98cD7a195eB139D0277E471fA](https://etherscan.io/address/0x670b850A235A6fA98cD7a195eB139D0277E471fA#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA)) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x670b850A235A6fA98cD7a195eB139D0277E471fA](https://etherscan.io/address/0x670b850A235A6fA98cD7a195eB139D0277E471fA#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x670b850A235A6fA98cD7a195eB139D0277E471fA)) - 2026-06-25 23:05 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x42Ad0173051225Ac784100e9acD43349707F4db9](https://etherscan.io/address/0x42Ad0173051225Ac784100e9acD43349707F4db9#code) ([diff](https://disco.l2beat.com/diff/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9)) - 2026-02-17 19:11 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2)) - 2025-11-25 17:46 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED)) - 2025-10-02 16:35 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557)) - 2025-07-24 18:01 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa](https://etherscan.io/address/0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0xFaA660bf783CBAa55e1B7F3475C20Db74a53b9Fa)) - 2025-04-24 16:16 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647)) - 2025-04-02 16:50 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc)) - 2025-02-28 14:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966](https://etherscan.io/tx/0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2025-02-28 14:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966](https://etherscan.io/tx/0x9c6af2cb2b4fcde9e351662342f15b60f004108b575dddd05d0caa4f50220966), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2024-12-02 10:19 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xF56D96B2535B932656d3c04Ebf51baBff241D886](https://etherscan.io/address/0xF56D96B2535B932656d3c04Ebf51baBff241D886#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886)) - 2024-12-02 10:19 UTC, deployment of [SystemConfig](https://etherscan.io/address/0x7A8Ed66B319911A0F3E7288BDdAB30d9c0C875c3#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xF56D96B2535B932656d3c04Ebf51baBff241D886](https://etherscan.io/address/0xF56D96B2535B932656d3c04Ebf51baBff241D886#code) Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner - **batcherHash**: EOA 1 - **owner**: Soneium Multisig Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#SystemConfig), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SystemConfig), [Unichain](https://l2beat.com/layer2s/projects/unichain#SystemConfig) #### OptimismPortal2 Addresses: [0x88e529A6ccd302c948689Cd5156C83D4614FAE92](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code), [0x1005217ad392DC64CEf501FA1777A27D42166748](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 12, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 22d) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x1005217ad392DC64CEf501FA1777A27D42166748/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x1005217ad392DC64CEf501FA1777A27D42166748](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x1005217ad392DC64CEf501FA1777A27D42166748)) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x1005217ad392DC64CEf501FA1777A27D42166748/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x1005217ad392DC64CEf501FA1777A27D42166748](https://etherscan.io/address/0x1005217ad392DC64CEf501FA1777A27D42166748#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x1005217ad392DC64CEf501FA1777A27D42166748)) - 2026-06-25 23:05 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ([diff](https://disco.l2beat.com/diff/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2)) - 2026-02-17 19:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B)) - 2025-11-25 17:46 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202)) - 2025-10-02 16:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999)) - 2025-07-24 18:01 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a](https://etherscan.io/address/0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0xEFEd7F38BB9BE74bBa583a1A5B7D0fe7C9D5787a)) - 2025-04-24 16:16 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4)) - 2025-04-02 16:50 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd)) - 2024-12-02 10:19 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x88e529A6ccd302c948689Cd5156C83D4614FAE92#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xe2F826324b2faf99E513D16D266c3F80aE87832B](https://etherscan.io/address/0xe2F826324b2faf99E513D16D266c3F80aE87832B#code) The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the SuperPermissionedDisputeGame. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#OptimismPortal2), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#OptimismPortal2), [Unichain](https://l2beat.com/layer2s/projects/unichain#OptimismPortal2) #### SuperchainConfig Addresses: [0x95703e0982140D16f8ebA6d158FccEde42f04a4C](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code), [0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504](https://etherscan.io/address/0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504#code) (Implementation (Upgradable)), [0x543bA4AADBAb8f9025686Bd03993043599c6fB04](https://etherscan.io/address/0x543bA4AADBAb8f9025686Bd03993043599c6fB04#code) (Admin) **Past upgrades** (Count of upgrades: 11, Last upgrade: 16d 6h ago, Avg upgrade interval: 2mo 22d) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504](https://etherscan.io/address/0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504)) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504](https://etherscan.io/address/0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x5570b1f2b97B1E35b5C6f9Ee76f6cf02c9917504)) - 2026-06-25 23:05 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2025-11-25 17:46 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2025-07-24 17:47 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x46acdce174c8d83ebe2f208d8c76c867e75617483d64c3e407f69ae2f9868716](https://etherscan.io/tx/0x46acdce174c8d83ebe2f208d8c76c867e75617483d64c3e407f69ae2f9868716), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2025-04-02 16:50 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7)) - 2024-06-10 18:29 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0](https://etherscan.io/tx/0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x53c165169401764778F780a69701385eb0FF19B7/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2024-06-10 18:29 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0](https://etherscan.io/tx/0xe361c0d4ae3aebc94b3f281ee372fbb1cbdb0c33ca8b1b35e7f3b009b2fcbdb0), implementations: [0x53c165169401764778F780a69701385eb0FF19B7](https://etherscan.io/address/0x53c165169401764778F780a69701385eb0FF19B7#code) ([diff](https://disco.l2beat.com/diff/eth:0x53c165169401764778F780a69701385eb0FF19B7/eth:0x53c165169401764778F780a69701385eb0FF19B7)) - 2024-01-22 20:19 UTC, deployment of [SuperchainConfig](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code): transaction [0x8ba0e42b89cde22310b644ed30fd44e4a348619a165a54c908e7dc341e9bbd0c](https://etherscan.io/tx/0x8ba0e42b89cde22310b644ed30fd44e4a348619a165a54c908e7dc341e9bbd0c), implementations: [0x53c165169401764778F780a69701385eb0FF19B7](https://etherscan.io/address/0x53c165169401764778F780a69701385eb0FF19B7#code) Used to manage global configuration values for multiple OP Chains within a single Superchain network. The SuperchainConfig contract manages individual pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3 months if left untouched. - Roles: - **admin**: SuperchainProxyAdmin; ultimately SuperchainProxyAdminOwner - **guardian**: Optimism Guardian Multisig; ultimately OpFoundationUpgradeSafe, Optimism EOA 1, Optimism Security Council, SaferSafes Can be upgraded by: SuperchainProxyAdminOwner with no delay Proxy used in: [Celo](https://l2beat.com/layer2s/projects/celo#SuperchainConfig), [Cyber](https://l2beat.com/layer2s/projects/cyber#SuperchainConfig), [Funki](https://l2beat.com/layer2s/projects/funki#SuperchainConfig), [Ink](https://l2beat.com/layer2s/projects/ink#SuperchainConfig), [Lisk](https://l2beat.com/layer2s/projects/lisk#SuperchainConfig), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SuperchainConfig), [Settlus](https://l2beat.com/layer2s/projects/settlus#SuperchainConfig), [Shape](https://l2beat.com/layer2s/projects/shape#SuperchainConfig), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainConfig), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainConfig) #### L1ERC721Bridge Addresses: [0x5933e323bE8896DfaCd1cD671442F27dAA10a053](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code), [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 12, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 22d) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-06-25 23:05 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-02-17 19:11 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2025-11-25 17:46 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2025-10-02 16:35 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F/eth:0x7f1d12fB2911EB095278085f721e644C1f675696)) - 2025-07-24 18:01 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F](https://etherscan.io/address/0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x25d6CeDEB277Ad7ebEe71226eD7877768E0B7A2F)) - 2025-04-24 16:16 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013)) - 2025-04-02 16:50 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0x276d3730f219f7ec22274f7263180b8452B46d47)) - 2024-12-02 10:19 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0x5933e323bE8896DfaCd1cD671442F27dAA10a053#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) Used to bridge ERC-721 tokens from host chain to this chain. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1ERC721Bridge), [BOB](https://l2beat.com/layer2s/projects/bob#L1ERC721Bridge), [Ink](https://l2beat.com/layer2s/projects/ink#L1ERC721Bridge), [Metal](https://l2beat.com/layer2s/projects/metal#L1ERC721Bridge), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1ERC721Bridge), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1ERC721Bridge), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1ERC721Bridge), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1ERC721Bridge), [Phala](https://l2beat.com/layer2s/projects/phala#L1ERC721Bridge), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1ERC721Bridge), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1ERC721Bridge), [Shape](https://l2beat.com/layer2s/projects/shape#L1ERC721Bridge), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1ERC721Bridge), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1ERC721Bridge), [World Chain](https://l2beat.com/layer2s/projects/world#L1ERC721Bridge), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#L1ERC721Bridge), [Zora](https://l2beat.com/layer2s/projects/zora#L1ERC721Bridge) #### L1CrossDomainMessenger Addresses: [0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code), [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 12, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 22d) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-06-25 23:05 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-02-17 19:11 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2025-11-25 17:46 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2025-10-02 16:35 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6)) - 2025-07-24 18:01 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54](https://etherscan.io/address/0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0xD26bB3aaAa4cB5638A8581A4c4b1d937D8E05c54)) - 2025-04-24 16:16 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12](https://etherscan.io/tx/0xbe44244e352a9ffa67ad7f7133e9ed014b380e4b1bd789419e6d33aaad780d12), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B)) - 2025-04-02 16:50 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231)) - 2024-12-02 10:19 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0x9CF951E3F74B644e621b36Ca9cea147a78D4c39f#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1CrossDomainMessenger), [BOB](https://l2beat.com/layer2s/projects/bob#L1CrossDomainMessenger), [Ink](https://l2beat.com/layer2s/projects/ink#L1CrossDomainMessenger), [Metal](https://l2beat.com/layer2s/projects/metal#L1CrossDomainMessenger), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1CrossDomainMessenger), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1CrossDomainMessenger), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1CrossDomainMessenger), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1CrossDomainMessenger), [Phala](https://l2beat.com/layer2s/projects/phala#L1CrossDomainMessenger), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1CrossDomainMessenger), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1CrossDomainMessenger), [Shape](https://l2beat.com/layer2s/projects/shape#L1CrossDomainMessenger), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1CrossDomainMessenger), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1CrossDomainMessenger), [World Chain](https://l2beat.com/layer2s/projects/world#L1CrossDomainMessenger), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#L1CrossDomainMessenger), [Zora](https://l2beat.com/layer2s/projects/zora#L1CrossDomainMessenger) #### L1StandardBridge (escrow) Addresses: [0xeb9bf100225c214Efc3E7C651ebbaDcF85177607](https://etherscan.io/address/0xeb9bf100225c214Efc3E7C651ebbaDcF85177607#code), [0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891](https://etherscan.io/address/0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) The main entry point to deposit ERC20 tokens from host chain to this chain. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner All supported tokens in this escrow are included in the value secured calculation. Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1StandardBridge), [BOB](https://l2beat.com/layer2s/projects/bob#L1StandardBridge), [Ink](https://l2beat.com/layer2s/projects/ink#L1StandardBridge), [Metal](https://l2beat.com/layer2s/projects/metal#L1StandardBridge), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1StandardBridge), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1StandardBridge), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1StandardBridge), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1StandardBridge), [Phala](https://l2beat.com/layer2s/projects/phala#L1StandardBridge), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1StandardBridge), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1StandardBridge), [Shape](https://l2beat.com/layer2s/projects/shape#L1StandardBridge), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1StandardBridge), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1StandardBridge), [World Chain](https://l2beat.com/layer2s/projects/world#L1StandardBridge), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#L1StandardBridge), [Zora](https://l2beat.com/layer2s/projects/zora#L1StandardBridge) #### LivenessModule Addresses: [0x0454092516c9A4d636d3CAfA1e82161376C8a748](https://etherscan.io/address/0x0454092516c9A4d636d3CAfA1e82161376C8a748#code) used to remove members inactive for 3mo 8d while making sure that the threshold remains above 75%. If the number of members falls below 8, the OpFoundationUpgradeSafe takes ownership of the multisig - Roles: - **fallbackOwner**: OpFoundationUpgradeSafe if the number of Optimism Security Council members falls below 8 - **livenessGuard**: LivenessGuard Implementation used in: [Celo](https://l2beat.com/layer2s/projects/celo#LivenessModule), [Cyber](https://l2beat.com/layer2s/projects/cyber#LivenessModule), [Funki](https://l2beat.com/layer2s/projects/funki#LivenessModule), [Ink](https://l2beat.com/layer2s/projects/ink#LivenessModule), [Lisk](https://l2beat.com/layer2s/projects/lisk#LivenessModule), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#LivenessModule), [Settlus](https://l2beat.com/layer2s/projects/settlus#LivenessModule), [Shape](https://l2beat.com/layer2s/projects/shape#LivenessModule), [Unichain](https://l2beat.com/layer2s/projects/unichain#LivenessModule), [World Chain](https://l2beat.com/layer2s/projects/world#LivenessModule) #### DelayedWETH Addresses: [0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code), [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 5, Last upgrade: 16d 6h ago, Avg upgrade interval: 17d 20h) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xE440CC08A71694C8229323803F59024E3144630e)) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xE440CC08A71694C8229323803F59024E3144630e)) - 2026-06-25 23:05 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0x18fBb58C366e21F395DdEc7cBa0510a2D9116B47#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) Contract designed to hold the bonded ETH for each game. It is designed as a wrapper around WETH to allow an owner to function as a backstop if a game would incorrectly distribute funds. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#DelayedWETH), [Katana](https://l2beat.com/layer2s/projects/katana#DelayedWETH), [Metal](https://l2beat.com/layer2s/projects/metal#DelayedWETH), [Mode Network](https://l2beat.com/layer2s/projects/mode#DelayedWETH), [Nillion](https://l2beat.com/layer2s/projects/nillion#DelayedWETH), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#DelayedWETH), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#DelayedWETH), [Phala](https://l2beat.com/layer2s/projects/phala#DelayedWETH), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#DelayedWETH), [Settlus](https://l2beat.com/layer2s/projects/settlus#DelayedWETH), [Shape](https://l2beat.com/layer2s/projects/shape#DelayedWETH), [Superseed](https://l2beat.com/layer2s/projects/superseed#DelayedWETH), [Unichain](https://l2beat.com/layer2s/projects/unichain#DelayedWETH), [World Chain](https://l2beat.com/layer2s/projects/world#DelayedWETH), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#DelayedWETH), [Zora](https://l2beat.com/layer2s/projects/zora#DelayedWETH) #### L1ERC20TokenBridge (escrow) Addresses: [0x2F543A7C9cc80Cc2427c892B96263098d23ee55a](https://etherscan.io/address/0x2F543A7C9cc80Cc2427c892B96263098d23ee55a#code), [0xf034dE8BD85A434d9Dc68F03382B589f86791425](https://etherscan.io/address/0xf034dE8BD85A434d9Dc68F03382B589f86791425#code) (Implementation (Upgradable)), [0x3e40D73EB977Dc6a537aF587D48316feE66E9C8c](https://etherscan.io/address/0x3e40D73EB977Dc6a537aF587D48316feE66E9C8c#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2025-01-20 09:43 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0x2F543A7C9cc80Cc2427c892B96263098d23ee55a#code): transaction [0xbd91ce5bc5a8c80796c11ac29b5aa78e37ad5f7b089c9a821d2ea6dbc6c60342](https://etherscan.io/tx/0xbd91ce5bc5a8c80796c11ac29b5aa78e37ad5f7b089c9a821d2ea6dbc6c60342), implementations: [0xf034dE8BD85A434d9Dc68F03382B589f86791425](https://etherscan.io/address/0xf034dE8BD85A434d9Dc68F03382B589f86791425#code) Lido custom escrow for wstETH tokens that uses the canonical bridge for messaging but is governed externally. The following tokens are included in the value secured calculation: stETH, wstETH #### AnchorStateRegistry Addresses: [0x4890928941e62e273dA359374b105F803329F473](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code), [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 8, Last upgrade: 16d 6h ago, Avg upgrade interval: 1mo 19d) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-06-25 23:05 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-02-17 19:11 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5)) - 2025-10-02 16:35 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329](https://etherscan.io/tx/0x744cf7d28324729cace731ac736872da669439a0d380f1f52b8d31af203f7329), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E)) - 2025-07-24 18:01 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x4890928941e62e273dA359374b105F803329F473#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) Contains the latest confirmed state root that can be used as a starting point in a dispute game. This variant stores respectedGameType, retirementTimestamp, and disputeGameFinalityDelaySeconds locally and drops the legacy *FromGame fields, since the AggregateVerifier model does not expose vm()/weth()/absolutePrestate() on its game implementation. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#AnchorStateRegistry), [Katana](https://l2beat.com/layer2s/projects/katana#AnchorStateRegistry), [Metal](https://l2beat.com/layer2s/projects/metal#AnchorStateRegistry), [Mode Network](https://l2beat.com/layer2s/projects/mode#AnchorStateRegistry), [Nillion](https://l2beat.com/layer2s/projects/nillion#AnchorStateRegistry), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#AnchorStateRegistry), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#AnchorStateRegistry), [Phala](https://l2beat.com/layer2s/projects/phala#AnchorStateRegistry), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#AnchorStateRegistry), [Settlus](https://l2beat.com/layer2s/projects/settlus#AnchorStateRegistry), [Shape](https://l2beat.com/layer2s/projects/shape#AnchorStateRegistry), [Superseed](https://l2beat.com/layer2s/projects/superseed#AnchorStateRegistry), [Unichain](https://l2beat.com/layer2s/projects/unichain#AnchorStateRegistry), [World Chain](https://l2beat.com/layer2s/projects/world#AnchorStateRegistry), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#AnchorStateRegistry), [Zora](https://l2beat.com/layer2s/projects/zora#AnchorStateRegistry) #### SuperchainProxyAdmin Addresses: [0x543bA4AADBAb8f9025686Bd03993043599c6fB04](https://etherscan.io/address/0x543bA4AADBAb8f9025686Bd03993043599c6fB04#code) - Roles: - **owner**: SuperchainProxyAdminOwner Implementation used in: [Celo](https://l2beat.com/layer2s/projects/celo#SuperchainProxyAdmin), [Cyber](https://l2beat.com/layer2s/projects/cyber#SuperchainProxyAdmin), [Funki](https://l2beat.com/layer2s/projects/funki#SuperchainProxyAdmin), [Ink](https://l2beat.com/layer2s/projects/ink#SuperchainProxyAdmin), [Lisk](https://l2beat.com/layer2s/projects/lisk#SuperchainProxyAdmin), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SuperchainProxyAdmin), [Settlus](https://l2beat.com/layer2s/projects/settlus#SuperchainProxyAdmin), [Shape](https://l2beat.com/layer2s/projects/shape#SuperchainProxyAdmin), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainProxyAdmin), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainProxyAdmin) #### SuperPermissionedDisputeGame Addresses: [0x5C3eb47cB0174aea522a2a9Ae79487139A53D691](https://etherscan.io/address/0x5C3eb47cB0174aea522a2a9Ae79487139A53D691#code) Logic of the permissioned dispute game introduced in Upgrade 20. Only the proposer configured in the DisputeGameFactory can create games of this type, and each one commits to a super root anchored to an L2 timestamp. Unlike the permissioned game it replaces, it runs no VM and exposes no challenger, bond, clock or absolute prestate: validity is governed by the AnchorStateRegistry and the Guardian. Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#SuperPermissionedDisputeGame), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#SuperPermissionedDisputeGame), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperPermissionedDisputeGame) #### ETHLockbox (escrow) Addresses: [0x67B4de6FfA66EF201Ea6099A89cA397D56622E31](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code), [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 6, Last upgrade: 16d 6h ago, Avg upgrade interval: 2mo 3d) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad)) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad)) - 2026-06-25 23:05 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xb3A24DB07038b51962026329B62E7a965d56A6ad](https://etherscan.io/address/0xb3A24DB07038b51962026329B62E7a965d56A6ad#code) ([diff](https://disco.l2beat.com/diff/eth:0x784d2F03593A42A6E4676A012762F18775ecbBe6/eth:0xb3A24DB07038b51962026329B62E7a965d56A6ad)) - 2025-07-24 18:01 UTC, deployment of [ETHLockbox](https://etherscan.io/address/0x67B4de6FfA66EF201Ea6099A89cA397D56622E31#code): transaction [0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2](https://etherscan.io/tx/0xdd89a3933dea0f44e1a461441f3c78e341702e9a4148784780644cdac90148c2), implementations: [0x784d2F03593A42A6E4676A012762F18775ecbBe6](https://etherscan.io/address/0x784d2F03593A42A6E4676A012762F18775ecbBe6#code) A simple escrow contract storing ETH for the canonical bridge. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner The following tokens are included in the value secured calculation: ETH Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#ETHLockbox), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#ETHLockbox), [Unichain](https://l2beat.com/layer2s/projects/unichain#ETHLockbox) #### DeputyPauseModule Addresses: [0x76fC2F971FB355D0453cF9F64d3F9E4f640E1754](https://etherscan.io/address/0x76fC2F971FB355D0453cF9F64d3F9E4f640E1754#code) Allows 0x2fA150379bF32b6d79Eeb4ff9bD280E76049a87c, called the deputy pauser, to act on behalf of the OpFoundationUpgradeSafe if set as its Safe module. - Roles: - **deputy**: Optimism EOA 1 though restricted to the SuperchainConfig's `pause()` function Implementation used in: [Celo](https://l2beat.com/layer2s/projects/celo#DeputyPauseModule), [Cyber](https://l2beat.com/layer2s/projects/cyber#DeputyPauseModule), [Funki](https://l2beat.com/layer2s/projects/funki#DeputyPauseModule), [Ink](https://l2beat.com/layer2s/projects/ink#DeputyPauseModule), [Lisk](https://l2beat.com/layer2s/projects/lisk#DeputyPauseModule), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#DeputyPauseModule), [Settlus](https://l2beat.com/layer2s/projects/settlus#DeputyPauseModule), [Shape](https://l2beat.com/layer2s/projects/shape#DeputyPauseModule), [Unichain](https://l2beat.com/layer2s/projects/unichain#DeputyPauseModule), [World Chain](https://l2beat.com/layer2s/projects/world#DeputyPauseModule) #### ProxyAdmin Addresses: [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) - Roles: - **owner**: SuperchainProxyAdminOwner #### OptimismMintableERC20Factory Addresses: [0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code), [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) (Implementation (Upgradable)), [0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a](https://etherscan.io/address/0x89889B569c3a505f3640ee1Bd0ac1D557f436D2a#code) (Admin) **Past upgrades** (Count of upgrades: 9, Last upgrade: 16d 6h ago, Avg upgrade interval: 2mo 7d) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-24 16:51 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a](https://etherscan.io/tx/0x0a0fe86f7b1a3d3d2d0be990e3f8b15628b885363ae527fa9548cb2c2375741a), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-06-25 23:05 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-06-25 23:05 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15](https://etherscan.io/tx/0xbfdac60c9687a2e469159bf2458e73de2915a0a5eb53c4991a7ecde2b1fb3f15), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-02-17 19:11 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c](https://etherscan.io/tx/0xeba2fc77f814ea5de7fc0e3b1496926483d14cf8541633c04aec9d1fec8eaf9c), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2025-11-25 17:46 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5](https://etherscan.io/tx/0xf556934cb4de1ab40a4cfba17856cd601cbc8b875b96a9ccd8ee32bcd363abf5), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2025-04-02 16:50 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29](https://etherscan.io/tx/0x5f3530e593bbac37c61dc5b7755b6a40c06c20c1a3a1b13fca5b7d00cde65c29), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F)) - 2024-12-02 10:19 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc1047e30EFC9E172cFe7aa0219895B6a43fC415F#code): transaction [0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb](https://etherscan.io/tx/0x521e36f9009b6c2545f054baf46587c17738e71b354712e0b534c5a53192fceb), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) A helper contract that generates OptimismMintableERC20 contracts on the network it's deployed to. OptimismMintableERC20 is a standard extension of the base ERC20 token contract designed to allow the L1StandardBridge contracts to mint and burn tokens. This makes it possible to use an OptimismMintableERC20 as this chain's representation of a token on the host chain, or vice-versa. - Roles: - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner Can be upgraded by: SuperchainProxyAdminOwner with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#OptimismMintableERC20Factory), [BOB](https://l2beat.com/layer2s/projects/bob#OptimismMintableERC20Factory), [Ink](https://l2beat.com/layer2s/projects/ink#OptimismMintableERC20Factory), [Metal](https://l2beat.com/layer2s/projects/metal#OptimismMintableERC20Factory), [Mode Network](https://l2beat.com/layer2s/projects/mode#OptimismMintableERC20Factory), [Nillion](https://l2beat.com/layer2s/projects/nillion#OptimismMintableERC20Factory), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#OptimismMintableERC20Factory), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#OptimismMintableERC20Factory), [Phala](https://l2beat.com/layer2s/projects/phala#OptimismMintableERC20Factory), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#OptimismMintableERC20Factory), [Settlus](https://l2beat.com/layer2s/projects/settlus#OptimismMintableERC20Factory), [Shape](https://l2beat.com/layer2s/projects/shape#OptimismMintableERC20Factory), [Superseed](https://l2beat.com/layer2s/projects/superseed#OptimismMintableERC20Factory), [Unichain](https://l2beat.com/layer2s/projects/unichain#OptimismMintableERC20Factory), [World Chain](https://l2beat.com/layer2s/projects/world#OptimismMintableERC20Factory), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#OptimismMintableERC20Factory), [Zora](https://l2beat.com/layer2s/projects/zora#OptimismMintableERC20Factory) #### L1OpUSDCBridgeAdapter (escrow) Addresses: [0xC67A8c5f22b40274Ca7C4A56Db89569Ee2AD3FAb](https://etherscan.io/address/0xC67A8c5f22b40274Ca7C4A56Db89569Ee2AD3FAb#code), [0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07](https://etherscan.io/address/0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07#code) (Implementation (Upgradable)), [0xE7c9a9DddAb8a384c38D721DE64E4222Fe76DF75](https://etherscan.io/address/0xE7c9a9DddAb8a384c38D721DE64E4222Fe76DF75#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-12-24 11:05 UTC, deployment of [L1OpUSDCBridgeAdapter](https://etherscan.io/address/0xC67A8c5f22b40274Ca7C4A56Db89569Ee2AD3FAb#code): transaction [0x7bff56936a70f2b482f4b32df6bcfcc5c76b64aae40f7e8a4c5c666c328fa44d](https://etherscan.io/tx/0x7bff56936a70f2b482f4b32df6bcfcc5c76b64aae40f7e8a4c5c666c328fa44d), implementations: [0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07](https://etherscan.io/address/0xcfF35e3C0B8D197A6Ce10802cd649FBb9957dA07#code) Escrow for USDC that uses the canonical bridge for messaging but is governed externally. The following tokens are included in the value secured calculation: USDC The current deployment carries some associated risks: - Funds can be stolen if a contract receives a malicious code upgrade. Both regular and emergency upgrades must be approved by both the Security Council and the Foundation. There is no delay on regular upgrades.