# Swellchain

Markdown version of https://l2beat.com/layer2s/projects/swell

## Summary

**Warning:** This project is archived and no longer maintained.

**Warning:** Why is the project listed in others? There are less than 5 external actors that can submit challenges. Consequence: projects without a sufficiently decentralized set of challengers rely on few entities to safely update the state. A small set of challengers can collude with the proposer to 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: $344.02 K (-6.52% compared to seven days ago; canonically bridged $344.02 K, natively minted $0.00, externally bridged $0.00; 0.00% 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 $344.02 K (99.9%)
- Past day UOPS: No data
- Gas token: ETH
- Type: Other
- Purposes: Universal, Restaking
- Host chain: Ethereum
- Chain ID: 1923

### Risks

- Sequencer failure: Self sequence (12h delay; sentiment: good)
- State validation: Fraud proofs (INT) (3d 12h challenge period + 3d 12h execution delay; sentiment: bad)
- Data availability: Onchain (sentiment: good)
- Exit window: None (sentiment: bad)
- Proposer failure: Cannot withdraw (sentiment: bad)

### About

Swellchain operates as a restaking-focused Layer 2 network built on the OP Stack. The network aims to extend Ethereum security through EigenLayer restaking while leveraging OP stack proven infrastructure for transaction processing and scalability.

### Links

- Website: https://swellnetwork.io/
- Bridge: https://app.swellnetwork.io/layer2/swell-l2
- Docs: https://build.swellnetwork.io/docs
- Explorer: https://explorer.swellnetwork.io/
- Repository: https://github.com/SwellNetwork
- Social: https://x.com/swellnetworkio, https://discord.com/invite/swellnetworkdao, https://swellnetwork.io/blog, https://t.me/+QvXky2aKNc8yYTI1, https://reddit.com/r/SwellNetwork/, https://linkedin.com/company/swellnetworkio
- Other: https://growthepie.com/chains/swell
- Contracts explorer (Disco): https://disco.l2beat.com/ui/p/swell

### 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
- AltLayer: This project was deployed via the rollup-as-a-service provider AltLayer

## Value Secured

The interactive TVS charts are shown on [the HTML page](https://l2beat.com/layer2s/projects/swell#tvs).

Token by token: [TVS breakdown](https://l2beat.com/layer2s/projects/swell/tvs-breakdown).

- [TVS chart (JSON)](https://l2beat.com/api/scaling/tvs/swell?range=max)
- [TVS breakdown by token (JSON)](https://l2beat.com/api/scaling/tvs/swell/breakdown)

## Activity

The interactive activity chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/swell#activity).

- [Activity chart (JSON)](https://l2beat.com/api/scaling/activity/swell?range=max)

## 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/swell#onchain-costs).

### Tracked transactions

#### Batch submissions

- transfer: 2024-11-27 08:38 UTC - 2025-04-05 18:01 UTC; historical; from: [0xf854cd5B26bfd73d51236c0122798907Ed65B1f2](https://etherscan.io/address/0xf854cd5B26bfd73d51236c0122798907Ed65B1f2); to: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0)
- transfer: 2025-04-05 18:01 UTC - now; currently used; from: [0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7](https://etherscan.io/address/0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7); to: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0)

#### State updates

- functionCall: 2024-11-27 08:38 UTC - now; currently used; address: [0x87690676786cDc8cCA75A472e483AF7C8F2f0F57](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57); 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 Ethereum over time. It leaves out data posted to other data-availability (DA) layers. We no longer track where the project posts data; previously it posted to [Ethereum](https://l2beat.com/projects/ethereum).

The interactive data posted chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/swell#data-posted).

### Tracked transactions

#### Blob submissions

- DA layer Ethereum: from block 21278355 to 22204309; historical; inbox: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0); sequencers: [0xf854cd5B26bfd73d51236c0122798907Ed65B1f2](https://etherscan.io/address/0xf854cd5B26bfd73d51236c0122798907Ed65B1f2)
- DA layer Ethereum: from block 22204309 to 25247844; historical; inbox: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0); sequencers: [0xeb18EA5dEDeE42e7af378991DFEb719D21c17b4C](https://etherscan.io/address/0xeb18EA5dEDeE42e7af378991DFEb719D21c17b4C)
- DA layer Ethereum: from block 25247844 to 25688844; historical; inbox: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0); sequencers: [0x37804a4f63Ab1dCf96A48B1DCE8c03492f539fE9](https://etherscan.io/address/0x37804a4f63Ab1dCf96A48B1DCE8c03492f539fE9)
- DA layer Ethereum: from block 25688844 to 25787678; historical; inbox: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0); sequencers: [0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7](https://etherscan.io/address/0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7)

## 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.

The interactive liveness chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/swell#liveness).

### Tracked transactions

#### Batch submissions

- transfer: 2024-11-27 08:38 UTC - 2025-04-05 18:01 UTC; historical; from: [0xf854cd5B26bfd73d51236c0122798907Ed65B1f2](https://etherscan.io/address/0xf854cd5B26bfd73d51236c0122798907Ed65B1f2); to: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0)
- transfer: 2025-04-05 18:01 UTC - now; currently used; from: [0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7](https://etherscan.io/address/0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7); to: [0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0](https://etherscan.io/address/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0)

#### State updates

- functionCall: 2024-11-27 08:38 UTC - now; currently used; address: [0x87690676786cDc8cCA75A472e483AF7C8F2f0F57](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)`

## Milestones & Incidents

- 2024-12-19: [Mainnet full launch](https://www.swellnetwork.io/post/swellchain). Swellchain mainnet launches publicly.

## Risk summary

### 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,
2. no whitelisted challenger disputes an invalid state root before the challenge window expires (CRITICAL).

### MEV can be extracted if

3. the operator exploits their centralized position and frontruns user transactions.

## Risk analysis

### 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

Fraud proofs (INT) (3d 12h challenge period + 3d 12h execution delay; sentiment: bad)

Fraud proofs allow actors watching the chain to prove that the state is incorrect. Interactive proofs (INT) require multiple transactions over time to resolve. Only one entity is currently allowed to propose and submit challenges, as only permissioned games are currently allowed.

### 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

Swellchain is not even a Stage 0 project.

### 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.
- Met: 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. [View code](https://github.com/ethereum-optimism/optimism/tree/develop/op-node)
- 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.
- Met: The sources of all programs used are public and program hashes can be independently regenerated.
- 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/0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0#code)
- [OptimismPortal2.sol - source code, depositTransaction function](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code)

Learn more about the DA layer here: [Ethereum](https://l2beat.com/projects/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/swell.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/swell.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

Updates to the system state can be proposed and challenged by permissioned operators only. If a state root passes the challenge period, it is optimistically considered correct and made actionable for withdrawals.

### State root proposals

Proposers submit state roots as children of the latest confirmed state root (called anchor state), by calling the `create` function in the DisputeGameFactory. A state root can have multiple conflicting children. Each proposal requires a stake, currently set to 0.0 ETH, that can be slashed if the proposal is proven incorrect via a fraud proof. Stakes can be withdrawn only after the proposal has been confirmed. A state root gets confirmed if the challenge period has passed and it is not countered.

**Risks**

- Funds can be stolen if no whitelisted challenger disputes an invalid state root before the challenge window expires (CRITICAL).

**References**

- [OP stack specification: Fault Dispute Game](https://specs.optimism.io/fault-proof/stage-one/fault-dispute-game.html#fault-dispute-game)

### Challenges

Challenges are opened to disprove invalid state roots using bisection games. Each bisection move requires a stake that increases expontentially with the depth of the bisection, with a factor of 1.09493. The maximum depth is 73, and reaching it therefore requires a cumulative stake of 0.00 ETH from depth 0. Actors can participate in any challenge by calling the `defend` or `attack` functions, depending whether they agree or disagree with the latest claim and want to move the bisection game forward. Actors that disagree with the top-level claim are called challengers, and actors that agree are called defenders. Each actor might be involved in multiple (sub-)challenges at the same time, meaning that the protocol operates with [full concurrency](https://medium.com/l2beat/fraud-proof-wars-b0cb4d0f452a). Challengers and defenders alternate in the bisection game, and they pass each other a clock that starts with 3d 12h. If a clock expires, the claim is considered defeated if it was countered, or it gets confirmed if uncountered. Since honest parties can inherit clocks from malicious parties that play both as challengers and defenders (see [freeloader claims](https://specs.optimism.io/fault-proof/stage-one/fault-dispute-game.html#freeloader-claims)), an inherited clock with too little time remaining is generally extended by 3h. The extension is 6h when the next claim is immediately before split depth 30, and 1d 3h (the standard extension plus the 1d oracle challenge period) immediately before the last depth. Along a full-depth path, cumulative extensions can therefore add up to 10d 3h. Since unconfirmed state roots are independent of one another, users can decide to exit with a subsequent confirmed state root if the previous one is delayed. Winners get the entire losers' stake, meaning that sybils can potentially play against each other at no cost. The final instruction found via the bisection game is then executed onchain in the MIPS one step prover contract who determines the winner. The protocol does not enforce valid bisections, meaning that actors can propose correct initial claims and then provide incorrect midpoints. The protocol can be subject to resource exhaustion attacks ([Spearbit 5.1.3](https://github.com/ethereum-optimism/optimism/blob/develop/docs/security-reviews/2024_08_Fault-Proofs-No-MIPS_Spearbit.pdf)).

**References**

- [Fraud Proof Wars: OPFP](https://medium.com/l2beat/fraud-proof-wars-b0cb4d0f452a)

### Program Hashes

#### OP absolute prestate v1.9.0 (cannon64)

A commitment to the initial state of the OP stack fault proof program.

- Hash: `0x033c000916b4a88cfffeceddd6cf0f4be3897a89195941e5a7c3f8209b4dbb6e`
- Repository: https://github.com/ethereum-optimism/optimism/tree/op-program/v1.9.0/op-program/client
- Verification: successful
- Used in: [World Chain](https://l2beat.com/layer2s/projects/world), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork), [Shape](https://l2beat.com/layer2s/projects/shape), [Swellchain](https://l2beat.com/layer2s/projects/swell), [Arena-Z](https://l2beat.com/layer2s/projects/arenaz), [Settlus](https://l2beat.com/layer2s/projects/settlus)

##### Verification steps

Steps are based on [this guide](https://docs.optimism.io/chain-operators/tutorials/absolute-prestate).

1. Install docker [https://docs.docker.com/get-started/get-docker/](https://docs.docker.com/get-started/get-docker/) and make sure it is running.
2. Check out the correct branch of [optimism](https://github.com/ethereum-optimism/optimism) repo: `git checkout op-program/v1.9.0-rc.1` . Commit hash should be `a0c621361db5b5a6dcb60fd8943d485672a076b0`.
3. Regenerate the absolute prestate: `make reproducible-prestate`. This script will print out the correct hash.

## 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: 35
- Last upgrade: 3mo 23d ago
- Avg upgrade interval: 4mo 7d

- 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))
- 2026-02-09 20:10 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B))
- 2026-02-09 20:10 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c))
- 2026-02-09 20:10 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2))
- 2026-02-09 20:10 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0))
- 2026-02-09 20:10 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9))
- 2026-02-09 20:10 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5))
- 2026-02-09 20:10 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB))
- 2025-11-25 20:22 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202))
- 2025-11-25 20:22 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50))
- 2025-11-25 20:22 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED))
- 2025-11-25 20:22 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0))
- 2025-11-25 20:22 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9))
- 2025-11-25 20:22 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB))
- 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))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999))
- 2025-10-14 16:48 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0))
- 2025-10-14 16:48 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x276d3730f219f7ec22274f7263180b8452B46d47))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0x7f1d12fB2911EB095278085f721e644C1f675696))
- 2025-10-14 16:48 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code)
- 2025-10-14 16:48 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F))
- 2025-10-14 16:48 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0xdD525E7E8fA35345D30e88018c9925F3C2876107#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998](https://etherscan.io/address/0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998#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))
- 2025-04-02 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))
- 2024-12-13 15:09 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0xecf3376512EDAcA4FBB63d2c67d12a0397d24121#code): transaction [0xad7c277ccb1907dcfc1485a433a193ca4d38bf6ec23ffd826a415a26a3b16466](https://etherscan.io/tx/0xad7c277ccb1907dcfc1485a433a193ca4d38bf6ec23ffd826a415a26a3b16466), implementations: [0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2](https://etherscan.io/address/0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2#code)
- 2024-11-27 08:38 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xe2F826324b2faf99E513D16D266c3F80aE87832B](https://etherscan.io/address/0xe2F826324b2faf99E513D16D266c3F80aE87832B#code)
- 2024-11-27 08:38 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xc641A33cab81C559F2bd4b21EA34C290E2440C2B](https://etherscan.io/address/0xc641A33cab81C559F2bd4b21EA34C290E2440C2B#code)
- 2024-11-27 08:38 UTC, deployment of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xF56D96B2535B932656d3c04Ebf51baBff241D886](https://etherscan.io/address/0xF56D96B2535B932656d3c04Ebf51baBff241D886#code)
- 2024-11-27 08:38 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code)
- 2024-11-27 08:38 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code)
- 2024-11-27 08:38 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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.

### [2026-08-10 11:02 UTC](https://l2beat.com/layer2s/projects/swell?update=2d5db5ba) (high severity, 7 changes)

Swellchain is being sunset. The registered pause deputy (`0x2fA1…a87c`) triggered the DeputyPauseModule on 2026-08-05, pausing this chain through the shared SuperchainConfig with the OptimismPortal2 as the pause identifier, so withdrawals, deposits and messaging are halted here. The shared config's global pause remains false. The pause is set to expire on 2026-11-04. The batch submitter key was rotated two hours before the pause.

### [2026-07-17 10:14 UTC](https://l2beat.com/layer2s/projects/swell?update=22783753) (4 changes)

OpFoundation shared Safes (UpgradeSafe + OperationsSafe): 2 members rotated.

### [2026-07-06 07:53 UTC](https://l2beat.com/layer2s/projects/swell?update=ceb8c2cc) (high severity, 8 changes)

Shared SuperchainConfig upgraded 2.4.0 → 2.4.2 ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)). No behavioral change — `ProxyAdminOwnedBase` import moved, misleading pause-state warning removed, and 5 new unused constants added to the shared `Constants` library (forward-plumbing for OPCM tooling).

### [2026-06-11 11:21 UTC](https://l2beat.com/layer2s/projects/swell?update=01ed696b) (1 change)

SystemConfig `unsafeBlockSigner` rotated.

### [2026-06-08 13:31 UTC](https://l2beat.com/layer2s/projects/swell?update=6b10f2ae) (1 change)

SystemConfig `batcherHash` rotated.

### [2026-05-15 13:08 UTC](https://l2beat.com/layer2s/projects/swell?update=626899b3) (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 15:18 UTC](https://l2beat.com/layer2s/projects/swell?update=106addec) (1 change)

Optimism Security Council (`eth:0xc2819DC7...`) — member 12 swap: `0x92827223` → `0xcbC7dCeb`. Shared multisig (referenced by multiple Superchain projects).

### [2026-03-25 10:07 UTC](https://l2beat.com/layer2s/projects/swell?update=b9d1874a) (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/swell?update=7a302420) (2 changes)

Optimism Security Council: 2 members replaced.

### [2026-02-11 10:11 UTC](https://l2beat.com/layer2s/projects/swell?update=2debc058) (high severity, 49 changes)

OP Contracts Upgrade 18 (op-contracts/v6.0.0).

OptimismPortal2 v5.1.1→v5.2.0: adds Custom Gas Token safety guards preventing ETH value operations in CGT mode. ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B))

AnchorStateRegistry v3.5.0→v3.7.0: adds safe re-initialization guard for retirementTimestamp and a new getStartingAnchorRoot() getter. ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5))

SystemConfig v3.11.0→v3.13.1: adds DelayedWETH storage slot, setBatcherHash(address) convenience setter, and isCustomGasToken() legacy getter. ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2))

DisputeGameFactory v1.3.0→v1.4.0: cloning logic now embeds gameType in clone bytecode when gameArgs are present. ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c))

New PermissionedDisputeGameV2 moves game parameters (VM, WETH, anchor registry, etc.) from constructor immutables into clone bytecode, allowing the factory to configure per-clone without separate implementations.

### [2026-01-27 11:37 UTC](https://l2beat.com/layer2s/projects/swell?update=4ed4940a) (3 changes)

SaferSafes module (LivenessModule + TimelockGuard combined) added to OpFoundationUpgradeSafe and OpFoundationOperationsSafe. This provides liveness checks where a fallback owner can challenge and take over if Safe owners are unresponsive, plus optional timelock delays for transaction scheduling.

### [2025-12-18 08:59 UTC](https://l2beat.com/layer2s/projects/swell?update=1d4814dc) (high severity, 14 changes)

upgrade to safe 1.4.1

### [2025-11-28 10:13 UTC](https://l2beat.com/layer2s/projects/swell?update=30f0f7b4) (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

### [2025-10-20 15:36 UTC](https://l2beat.com/layer2s/projects/swell?update=2407d9a1) (high severity, 118 changes)

Upgrade to 16a protocol version. All contracts templatized.

### [2025-08-18 09:00 UTC](https://l2beat.com/layer2s/projects/swell?update=3d4e1c33) (2 changes)

Security council members rotation.

### [2025-07-28 06:01 UTC](https://l2beat.com/layer2s/projects/swell?update=ef33515d) (high severity, 30 changes)

Op stack gov upgrade: SuperchainConfig with pause expiry and DeputyPausModule. See optimism diffHistory for details.

### [2025-07-14 12:46 UTC](https://l2beat.com/layer2s/projects/swell?update=37cdfcca) (29 changes)

Discovery rerun on the same block number with only config-related changes.

### [2025-06-27 12:21 UTC](https://l2beat.com/layer2s/projects/swell?update=25d50ddc) (6 changes)

Delete permissionless disputeGame for swell and arenaz [in one tx](https://app.blocksec.com/explorer/tx/eth/0x7d2a05b891c480b91a472a135e867e6a94ba196439e47e76cc08954401a9b224). Both did not use it.

### [2025-05-16 12:41 UTC](https://l2beat.com/layer2s/projects/swell?update=fff90d72) (56 changes)

Upgrade to latest OPFP (known contracts).

### [2025-05-08 08:51 UTC](https://l2beat.com/layer2s/projects/swell?update=6db848f3) (3 changes)

OP stack DeputyPauser upgrade (see op mainnet for more info).

### [2025-04-06 07:49 UTC](https://l2beat.com/layer2s/projects/swell?update=2044b1f5) (3 changes)

Operators change, no change to implementations.

### [2025-04-04 09:41 UTC](https://l2beat.com/layer2s/projects/swell?update=aa716c9b) (high severity, 5 changes)

Discovery rerun on the same block number with only config-related changes.

### [2025-02-12 10:00 UTC](https://l2beat.com/layer2s/projects/swell?update=d282bf20) (2 changes)

Optimism SecurityCouncil rotates signers.

### [2025-02-08 15:58 UTC](https://l2beat.com/layer2s/projects/swell?update=2f8064a7) (2 changes)

Single SC member rotated.

### [2025-02-06 09:17 UTC](https://l2beat.com/layer2s/projects/swell?update=14a976a5) (1 change)

OP Stack SC signer rotation.

### [2025-01-06 13:39 UTC](https://l2beat.com/layer2s/projects/swell?update=c891211b) (28 changes)

Initial discovery of an OP stack chain with known contracts and superchain gov, using a permissioned-dispute-game-ONLY construction similar to ink l2 on launch.

### [2024-10-17 14:02 UTC](https://l2beat.com/layer2s/projects/swell?update=ecbbb2cf) (4 changes)

1 signer removed from SwellMultisig.

### [2024-10-14 14:18 UTC](https://l2beat.com/layer2s/projects/swell?update=f37fbe64) (8 changes)

One new signer added to SwellMultisig.

### [2024-06-04 04:55 UTC](https://l2beat.com/layer2s/projects/swell?update=5f9ab002) (1 change)

A timelock transaction is queued by the SwellMultisig to support the Lyra-associated token weETHC for staking in the swell prelaunch escrow.

### [2024-05-15 07:31 UTC](https://l2beat.com/layer2s/projects/swell?update=628ed4d6) (1 change)

The timelock tx explained in the update below is executed.

### [2024-05-13 07:41 UTC](https://l2beat.com/layer2s/projects/swell?update=f4047361) (1 change)

A timelock transaction is queued to whitelist (`supportToken(address,(bool,bool))`) the following tokens on Wednesday, 15 May 2024 04:00:00 GMT:

- sDAI (savings dai)
- wstUSDT (stusdt.io)
- liquidUSD (Ether.fi)
- apxETH (Dinero)
- pxETH (Dinero)

### [2024-05-04 06:16 UTC](https://l2beat.com/layer2s/projects/swell?update=6bf84f2e) (4 changes)

Initial config for the Pre-launch phase of swell. There are two main contracts:
- Zap: Non-escrowing entry contract that wraps ETH, eETH or stETH and deposits them into the Vault. It is immutable and has no owner functions.
- SwellL2PrelaunchVault: Escrow that can hold predefined ERC-20s and nothing more. It is immutable and owner functions (`rescueERC20()`) are currently proxied with a 2d timelock in front of the SwellMultisig.

## 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/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#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 process of state root settlement takes a challenge period of at least 3d 12h to complete. 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/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code)
- [OptimismPortal2.sol - Etherscan source code, finalizeWithdrawalTransaction function](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#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/swell

### Ethereum

#### Actors

##### SuperchainProxyAdminOwner

Addresses: [0x5a0Aae59D09fccBdDb6C6CcEB07B7279367C3d2A](https://etherscan.io/address/0x5a0Aae59D09fccBdDb6C6CcEB07B7279367C3d2A)

A Multisig with 2/2 threshold.
- Can upgrade **with no delay**
  - AnchorStateRegistry [via: ProxyAdmin]
  - OptimismPortal2 [via: ProxyAdmin]
  - L1StandardBridge [via: ProxyAdmin]
  - DisputeGameFactory [via: ProxyAdmin]
  - SuperchainConfig [via: SuperchainProxyAdmin]
  - OptimismMintableERC20Factory [via: ProxyAdmin]
  - SystemConfig [via: ProxyAdmin]
  - DelayedWETH [via: ProxyAdmin]
  - L1CrossDomainMessenger [via: ProxyAdmin]
  - L1ERC721Bridge [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/swell#OpFoundationUpgradeSafe) (OpFoundationUpgradeSafe), [0xc2819DC788505Aac350142A7A707BF9D03E3Bd03](https://l2beat.com/layer2s/projects/swell#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), [Soneium](https://l2beat.com/layer2s/projects/soneium#SuperchainProxyAdminOwner), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainProxyAdminOwner), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainProxyAdminOwner)

##### 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 DisputeGameFactory
  - Allowed to challenge or delete state roots proposed by a Proposer [via: OpFoundationOperationsSafe]
- 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#SaferSafes), [Unichain](https://l2beat.com/layer2s/projects/unichain#SaferSafes), [World Chain](https://l2beat.com/layer2s/projects/world#SaferSafes)

##### Swell Multisig

Addresses: [0x06F7fB1C74147e34Fce04a6828c7BF809B038d0E](https://etherscan.io/address/0x06F7fB1C74147e34Fce04a6828c7BF809B038d0E)

A Multisig with 2/3 threshold.
- Can interact with SystemConfig
  - it can update the preconfer address, the batch submitter (Sequencer) address and the gas configuration of the system

Participants (3): [0xa8AC7D03BEb92Fa3E6030AEB21629D00Ffb66dD7](https://etherscan.io/address/0xa8AC7D03BEb92Fa3E6030AEB21629D00Ffb66dD7), [0xaC79765A73eB9dcBd3c427181E6819902AE25b48](https://etherscan.io/address/0xaC79765A73eB9dcBd3c427181E6819902AE25b48), [0xB5b01E638CEF6AE50462A487d70005D6fe85eCf2](https://etherscan.io/address/0xB5b01E638CEF6AE50462A487d70005D6fe85eCf2)

##### OpFoundationOperationsSafe

Addresses: [0x9BA6e03D8B90dE867373Db8cF1A58d2F7F006b3A](https://etherscan.io/address/0x9BA6e03D8B90dE867373Db8cF1A58d2F7F006b3A)

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).
- Can interact with DisputeGameFactory
  - Allowed to challenge or delete state roots proposed by a Proposer

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)

##### 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#OpFoundationUpgradeSafe), [Unichain](https://l2beat.com/layer2s/projects/unichain#OpFoundationUpgradeSafe), [World Chain](https://l2beat.com/layer2s/projects/world#OpFoundationUpgradeSafe)

##### 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), [0x0aA384EB2fedD2741277A0f72909A0d7275575D7](https://etherscan.io/address/0x0aA384EB2fedD2741277A0f72909A0d7275575D7), [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), [Soneium](https://l2beat.com/layer2s/projects/soneium#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), [Soneium](https://l2beat.com/layer2s/projects/soneium#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/swell#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), [Soneium](https://l2beat.com/layer2s/projects/soneium#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: [0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7](https://etherscan.io/address/0xa008a7b0f7b7f40f11001c55acd3B9e9E0C053b7)

- Can interact with SystemConfig
  - Allowed to commit transactions from the current layer to the host chain

##### EOA 2

Addresses: [0xA2Acb8142b64fabda103DA19b0075aBB56d29FbD](https://etherscan.io/address/0xA2Acb8142b64fabda103DA19b0075aBB56d29FbD)

- Can interact with DisputeGameFactory
  - Allowed to post new state roots of 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#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/swell

### Ethereum

#### OptimismPortal2 (escrow)

Addresses: [0x758E0EE66102816F5C3Ec9ECc1188860fbb87812](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code), [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 5, Last upgrade: 8mo 9d ago, Avg upgrade interval: 3mo 24d)

- 2026-02-09 20:10 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B))
- 2025-11-25 20:22 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4))
- 2025-10-14 16:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999))
- 2024-11-27 08:38 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x758E0EE66102816F5C3Ec9ECc1188860fbb87812#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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 PermissionedDisputeGame.
- 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: [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#OptimismPortal2)

#### DisputeGameFactory

Addresses: [0x87690676786cDc8cCA75A472e483AF7C8F2f0F57](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code), [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 4, Last upgrade: 8mo 9d ago, Avg upgrade interval: 4mo 17d)

- 2026-02-09 20:10 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c))
- 2025-11-25 20:22 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50))
- 2025-10-14 16:48 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0))
- 2025-10-14 16:48 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D))
- 2024-11-27 08:38 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x87690676786cDc8cCA75A472e483AF7C8F2f0F57#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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.
- Roles:
  - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner
  - **challengerFromDGF**: OpFoundationOperationsSafe; ultimately SaferSafes
  - **owner**: SuperchainProxyAdminOwner
  - **proposerFromDGF**: EOA 2

Can be upgraded by: SuperchainProxyAdminOwner with no delay

Implementation used in: [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#DisputeGameFactory)

#### SystemConfig

Addresses: [0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code), [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 6, Last upgrade: 8mo 9d ago, Avg upgrade interval: 3mo 8d)

- 2026-02-09 20:10 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2))
- 2025-11-25 20:22 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647))
- 2025-10-14 16:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557))
- 2024-11-27 08:38 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), implementations: [0xF56D96B2535B932656d3c04Ebf51baBff241D886](https://etherscan.io/address/0xF56D96B2535B932656d3c04Ebf51baBff241D886#code) ([diff](https://disco.l2beat.com/diff/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886/eth:0xF56D96B2535B932656d3c04Ebf51baBff241D886))
- 2024-11-27 08:38 UTC, deployment of [SystemConfig](https://etherscan.io/address/0xD3d4c6B703978a5d24FecF3a70a51127667Ff1A4#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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**: Swell Multisig

Can be upgraded by: SuperchainProxyAdminOwner with no delay

Implementation used in: [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#SystemConfig)

#### SuperchainConfig

Addresses: [0x95703e0982140D16f8ebA6d158FccEde42f04a4C](https://etherscan.io/address/0x95703e0982140D16f8ebA6d158FccEde42f04a4C#code), [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) (Implementation (Upgradable)), [0x543bA4AADBAb8f9025686Bd03993043599c6fB04](https://etherscan.io/address/0x543bA4AADBAb8f9025686Bd03993043599c6fB04#code) (Admin)

**Past upgrades** (Count of upgrades: 7, Last upgrade: 3mo 23d ago, Avg upgrade interval: 4mo 4d)

- 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#SuperchainConfig), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainConfig), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainConfig)

Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#SuperchainConfig), [Ancient8](https://l2beat.com/layer2s/projects/ancient8#SuperchainConfig), [BOB](https://l2beat.com/layer2s/projects/bob#SuperchainConfig), [Katana](https://l2beat.com/layer2s/projects/katana#SuperchainConfig), [Metal](https://l2beat.com/layer2s/projects/metal#SuperchainConfig), [Mode Network](https://l2beat.com/layer2s/projects/mode#SuperchainConfig), [Nillion](https://l2beat.com/layer2s/projects/nillion#SuperchainConfig), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#SuperchainConfig), [Phala](https://l2beat.com/layer2s/projects/phala#SuperchainConfig), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#SuperchainConfig), [Superseed](https://l2beat.com/layer2s/projects/superseed#SuperchainConfig), [Zircuit](https://l2beat.com/layer2s/projects/zircuit#SuperchainConfig), [Zora](https://l2beat.com/layer2s/projects/zora#SuperchainConfig)

#### L1StandardBridge (escrow)

Addresses: [0x7aA4960908B13D104bf056B23E2C76B43c5AACc8](https://etherscan.io/address/0x7aA4960908B13D104bf056B23E2C76B43c5AACc8#code), [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#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: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#L1StandardBridge), [Base Chain](https://l2beat.com/layer2s/projects/base#L1StandardBridge), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#L1StandardBridge), [RISE](https://l2beat.com/layer2s/projects/rise#L1StandardBridge)

#### L1CrossDomainMessenger

Addresses: [0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code), [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 5, Last upgrade: 8mo 9d ago, Avg upgrade interval: 3mo 24d)

- 2026-02-09 20:10 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0))
- 2025-11-25 20:22 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B))
- 2025-10-14 16:48 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6))
- 2024-11-27 08:38 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0xe6a99Ef12995DeFC5ff47EC0e13252f0E6903759#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#L1CrossDomainMessenger), [Base Chain](https://l2beat.com/layer2s/projects/base#L1CrossDomainMessenger), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#L1CrossDomainMessenger), [RISE](https://l2beat.com/layer2s/projects/rise#L1CrossDomainMessenger), [X Layer](https://l2beat.com/layer2s/projects/xlayer#L1CrossDomainMessenger)

#### L1ERC721Bridge

Addresses: [0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code), [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 5, Last upgrade: 8mo 9d ago, Avg upgrade interval: 3mo 24d)

- 2026-02-09 20:10 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9))
- 2025-11-25 20:22 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x276d3730f219f7ec22274f7263180b8452B46d47))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013))
- 2025-10-14 16:48 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0x7f1d12fB2911EB095278085f721e644C1f675696))
- 2024-11-27 08:38 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0xfd7618330E63B493070DC8C491Ad4aD26144Bc1e#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#L1ERC721Bridge), [Base Chain](https://l2beat.com/layer2s/projects/base#L1ERC721Bridge), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#L1ERC721Bridge), [Celo](https://l2beat.com/layer2s/projects/celo#L1ERC721Bridge), [RISE](https://l2beat.com/layer2s/projects/rise#L1ERC721Bridge)

#### 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#LivenessModule), [Unichain](https://l2beat.com/layer2s/projects/unichain#LivenessModule), [World Chain](https://l2beat.com/layer2s/projects/world#LivenessModule)

#### PreimageOracle

Addresses: [0x1fb8cdFc6831fc866Ed9C51aF8817Da5c287aDD3](https://etherscan.io/address/0x1fb8cdFc6831fc866Ed9C51aF8817Da5c287aDD3#code)

The PreimageOracle contract is used to load the required data from L1 for a dispute game.

Implementation used in: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#PreimageOracle), [Base Chain](https://l2beat.com/layer2s/projects/base#PreimageOracle), [Celo](https://l2beat.com/layer2s/projects/celo#PreimageOracle), [MegaETH](https://l2beat.com/layer2s/projects/megaeth#PreimageOracle), [RISE](https://l2beat.com/layer2s/projects/rise#PreimageOracle), [X Layer](https://l2beat.com/layer2s/projects/xlayer#PreimageOracle)

#### ProxyAdmin

Addresses: [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code)

- Roles:
  - **owner**: SuperchainProxyAdminOwner

#### AnchorStateRegistry

Addresses: [0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac](https://etherscan.io/address/0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac#code), [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 1, Last upgrade: 8mo 9d ago, Avg upgrade interval: 6mo 3d)

- 2026-02-09 20:10 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5))
- 2025-10-14 16:48 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x511fB9E172f8A180735ACF9c2beeb208cD0061Ac#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), 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. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame.
- Roles:
  - **admin**: ProxyAdmin; ultimately SuperchainProxyAdminOwner

Can be upgraded by: SuperchainProxyAdminOwner with no delay

Implementation used in: [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#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), [Soneium](https://l2beat.com/layer2s/projects/soneium#SuperchainProxyAdmin), [Unichain](https://l2beat.com/layer2s/projects/unichain#SuperchainProxyAdmin), [World Chain](https://l2beat.com/layer2s/projects/world#SuperchainProxyAdmin)

#### PermissionedDisputeGame

Addresses: [0x58bf355C5d4EdFc723eF89d99582ECCfd143266A](https://etherscan.io/address/0x58bf355C5d4EdFc723eF89d99582ECCfd143266A#code)

Same as FaultDisputeGame, but only two permissioned addresses are designated as proposer and challenger.

Implementation used in: [Base Chain](https://l2beat.com/layer2s/projects/base#PermissionedDisputeGame), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#PermissionedDisputeGame)

#### MIPS

Addresses: [0x6463dEE3828677F6270d83d45408044fc5eDB908](https://etherscan.io/address/0x6463dEE3828677F6270d83d45408044fc5eDB908#code)

The MIPS contract is used to execute the final step of the dispute game which objectively determines the winner of the dispute.

Implementation used in: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#MIPS), [Base Chain](https://l2beat.com/layer2s/projects/base#MIPS), [Celo](https://l2beat.com/layer2s/projects/celo#MIPS), [RISE](https://l2beat.com/layer2s/projects/rise#MIPS)

#### 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), [Soneium](https://l2beat.com/layer2s/projects/soneium#DeputyPauseModule), [Unichain](https://l2beat.com/layer2s/projects/unichain#DeputyPauseModule), [World Chain](https://l2beat.com/layer2s/projects/world#DeputyPauseModule)

#### OptimismMintableERC20Factory

Addresses: [0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code), [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: 3, Last upgrade: 8mo 9d ago, Avg upgrade interval: 5mo 22d)

- 2026-02-09 20:10 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37](https://etherscan.io/tx/0x8808cd53114e4cf07bfde30daf24f2984d4a40ab09c5ca67bd171ac29d6dbf37), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB))
- 2025-11-25 20:22 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a](https://etherscan.io/tx/0xc1c52a6b223c21ad02f12e115b3b872ca858298de141528c019401811fbb822a), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB))
- 2025-10-14 16:48 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F))
- 2024-11-27 08:38 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc2b228cd433eBaE788DE287EDE2abE55B3F3F603#code): transaction [0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d](https://etherscan.io/tx/0x9d71c017e9080cc922d6bc87d89052eeaced49b0cbc0bed5c1ec2a31d5e4496d), 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: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#OptimismMintableERC20Factory), [Base Chain](https://l2beat.com/layer2s/projects/base#OptimismMintableERC20Factory), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#OptimismMintableERC20Factory), [RISE](https://l2beat.com/layer2s/projects/rise#OptimismMintableERC20Factory), [X Layer](https://l2beat.com/layer2s/projects/xlayer#OptimismMintableERC20Factory)

#### DelayedWETH

Addresses: [0xdD525E7E8fA35345D30e88018c9925F3C2876107](https://etherscan.io/address/0xdD525E7E8fA35345D30e88018c9925F3C2876107#code), [0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998](https://etherscan.io/address/0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998#code) (Implementation (Upgradable)), [0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6](https://etherscan.io/address/0x4C4710a4Ec3F514A492CC6460818C4A6A6269dd6#code) (Admin)

**Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A)

- 2025-10-14 16:48 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0xdD525E7E8fA35345D30e88018c9925F3C2876107#code): transaction [0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c](https://etherscan.io/tx/0x6e9cfd7c22acaf263f9a5afaaa701934c77fa2015b9a65262fe29dee108b092c), implementations: [0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998](https://etherscan.io/address/0x33Dadc2d1aA9BB613A7AE6B28425eA00D44c6998#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: [Ancient8](https://l2beat.com/layer2s/projects/ancient8#DelayedWETH), [Base Chain](https://l2beat.com/layer2s/projects/base#DelayedWETH), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork#DelayedWETH), [RISE](https://l2beat.com/layer2s/projects/rise#DelayedWETH), [X Layer](https://l2beat.com/layer2s/projects/xlayer#DelayedWETH)

#### L1ERC20TokenBridge (escrow)

Addresses: [0xecf3376512EDAcA4FBB63d2c67d12a0397d24121](https://etherscan.io/address/0xecf3376512EDAcA4FBB63d2c67d12a0397d24121#code), [0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2](https://etherscan.io/address/0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2#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)

- 2024-12-13 15:09 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0xecf3376512EDAcA4FBB63d2c67d12a0397d24121#code): transaction [0xad7c277ccb1907dcfc1485a433a193ca4d38bf6ec23ffd826a415a26a3b16466](https://etherscan.io/tx/0xad7c277ccb1907dcfc1485a433a193ca4d38bf6ec23ffd826a415a26a3b16466), implementations: [0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2](https://etherscan.io/address/0x7e97935FbDF2a27EA35c4fdDdaCf5ACd685e65A2#code)

Escrow for custom external tokens that use the canonical bridge for messaging but are governed externally.

The following tokens are included in the value secured calculation: wstETH

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.

### Program Hashes

#### OP absolute prestate v1.9.0 (cannon64)

A commitment to the initial state of the OP stack fault proof program.

- Hash: `0x033c000916b4a88cfffeceddd6cf0f4be3897a89195941e5a7c3f8209b4dbb6e`
- Repository: https://github.com/ethereum-optimism/optimism/tree/op-program/v1.9.0/op-program/client
- Verification: successful
- Used in: [World Chain](https://l2beat.com/layer2s/projects/world), [Boba Network](https://l2beat.com/layer2s/projects/bobanetwork), [Shape](https://l2beat.com/layer2s/projects/shape), [Swellchain](https://l2beat.com/layer2s/projects/swell), [Arena-Z](https://l2beat.com/layer2s/projects/arenaz), [Settlus](https://l2beat.com/layer2s/projects/settlus)

##### Verification steps

Steps are based on [this guide](https://docs.optimism.io/chain-operators/tutorials/absolute-prestate).

1. Install docker [https://docs.docker.com/get-started/get-docker/](https://docs.docker.com/get-started/get-docker/) and make sure it is running.
2. Check out the correct branch of [optimism](https://github.com/ethereum-optimism/optimism) repo: `git checkout op-program/v1.9.0-rc.1` . Commit hash should be `a0c621361db5b5a6dcb60fd8943d485672a076b0`.
3. Regenerate the absolute prestate: `make reproducible-prestate`. This script will print out the correct hash.