# GRVT Markdown version of https://l2beat.com/layer2s/projects/grvt ## Summary **Warning:** Why is the project listed in others? There is no data availability bridge. Consequence: projects without a data availability bridge fully rely on single entities (the sequencer) to honestly rely available data roots on Ethereum. A malicious sequencer can collude with the proposer to finalize an unavailable 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: No data - Past day UOPS: No data - Type: Other - Purpose: Exchange - Host chain: Ethereum ### Risks - Sequencer failure: No mechanism (sentiment: bad) - State validation: Validity proofs (ST, SN) (3h execution delay; sentiment: good) - Data availability: External (sentiment: bad) - Exit window: None (emergency upgrade path; sentiment: bad); 4d 3h (regular upgrade path; sentiment: warning) - Proposer failure: Replace proposer (sentiment: warning) ### About Gravity (GRVT) is a hybrid crypto derivatives exchange, providing a centralized exchange-like experience while being based on the ZK stack Validium codebase with confidential data availability and transaction filtering enabled. ### Links - Website: https://grvt.io - Bridge: https://grvt.io/exchange/perpetual/BTC-USDT - Docs: https://help.grvt.io/en - Social: https://x.com/grvt_io, https://discord.gg/3jsVPwaGeB, https://t.me/grvt_io, https://grvt.io/blog/ - Contracts explorer (Disco): https://disco.l2beat.com/ui/p/grvt ### Badges - EVM: This project uses the Ethereum Virtual Machine to run its smart contracts and supports the Solidity programming language - Custom DA solution: This project is using a custom DA solution - Built on the ZK Stack: The project is built on the ZK Stack - Part of the Elastic Chain: The project is part of the Elastic Chain, meaning it's based on the ZK stack and uses the shared contracts ## 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/grvt#onchain-costs). ### Tracked transactions #### Batch submissions - sharedBridge: 2025-03-24 09:29 UTC - 2025-12-26 19:29 UTC; historical; address: [0x8c0Bfc04AdA21fd496c55B8C50331f904306F564](https://etherscan.io/address/0x8c0Bfc04AdA21fd496c55B8C50331f904306F564); selector: 0x98f81962; signature: `function commitBatchesSharedBridge(uint256 _chainId, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 325 - sharedBridge: 2025-12-26 19:29 UTC - now; currently used; address: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776); selector: 0x0db9eb87; signature: `function commitBatchesSharedBridge(address _chainAddress, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E #### Proof submissions - sharedBridge: 2025-03-24 09:29 UTC - 2025-12-26 19:29 UTC; historical; address: [0x8c0Bfc04AdA21fd496c55B8C50331f904306F564](https://etherscan.io/address/0x8c0Bfc04AdA21fd496c55B8C50331f904306F564); selector: 0xe12a6137; signature: `function proveBatchesSharedBridge(uint256 _chainId, uint256, uint256, bytes)`; first calldata parameter: 325 - sharedBridge: 2025-12-26 19:29 UTC - now; currently used; address: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776); selector: 0x9271e450; signature: `function proveBatchesSharedBridge(address _chainAddress, uint256, uint256, bytes)`; first calldata parameter: 0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E #### State updates - sharedBridge: 2025-03-24 09:29 UTC - 2025-12-26 19:29 UTC; historical; address: [0x8c0Bfc04AdA21fd496c55B8C50331f904306F564](https://etherscan.io/address/0x8c0Bfc04AdA21fd496c55B8C50331f904306F564); selector: 0xcf02827d; signature: `function executeBatchesSharedBridge(uint256 _chainId, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 325 - sharedBridge: 2025-12-26 19:29 UTC - now; currently used; address: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776); selector: 0xa085344d; signature: `function executeBatchesSharedBridge(address _chainAddress, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E ## Liveness This section shows how "live" the project's operators are by displaying how frequently they submit transactions of the selected type. It also highlights anomalies - significant deviations from their typical schedule. No ongoing anomalies detected. The interactive liveness chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/grvt#liveness). ### Tracked transactions #### Proof submissions - sharedBridge: 2025-03-24 09:29 UTC - 2025-12-26 19:29 UTC; historical; address: [0x8c0Bfc04AdA21fd496c55B8C50331f904306F564](https://etherscan.io/address/0x8c0Bfc04AdA21fd496c55B8C50331f904306F564); selector: 0xe12a6137; signature: `function proveBatchesSharedBridge(uint256 _chainId, uint256, uint256, bytes)`; first calldata parameter: 325 - sharedBridge: 2025-12-26 19:29 UTC - now; currently used; address: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776); selector: 0x9271e450; signature: `function proveBatchesSharedBridge(address _chainAddress, uint256, uint256, bytes)`; first calldata parameter: 0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E #### State updates - sharedBridge: 2025-03-24 09:29 UTC - 2025-12-26 19:29 UTC; historical; address: [0x8c0Bfc04AdA21fd496c55B8C50331f904306F564](https://etherscan.io/address/0x8c0Bfc04AdA21fd496c55B8C50331f904306F564); selector: 0xcf02827d; signature: `function executeBatchesSharedBridge(uint256 _chainId, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 325 - sharedBridge: 2025-12-26 19:29 UTC - now; currently used; address: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776); selector: 0xa085344d; signature: `function executeBatchesSharedBridge(address _chainAddress, uint256 _processBatchFrom, uint256 _processBatchTo, bytes)`; first calldata parameter: 0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E ### Last 30 day anomalies All liveness anomalies detected for this project in the last 30 days, helping you review recent downtime and availability issues. - No state updates were performed for 1h 3m (from 2026-10-06 09:37 UTC until 2026-10-06 10:40 UTC). These typically occur every 20m 33s on average. ## Milestones & Incidents - 2024-12-20: [Mainnet alpha launch](https://grvt.io/blog/grvt-mainnet-alpha-first-hour-15-million/). GRVT mainnet alpha launches for all users. ## Risk summary ### Funds can be stolen if 1. a contract receives a malicious code upgrade. There is a 4d 3h - 8d 3h delay on code upgrades unless upgrade is initiated by the EmergencyUpgradeBoard in which case there is no delay. ### Funds can be lost if 2. the external data becomes unavailable (CRITICAL), 3. the proof system is implemented incorrectly. ### Users can be censored if 4. the operator refuses to include their transactions, 5. the Operator does not specifically whitelist them in the TransactionFilterer. ### MEV can be extracted if 6. the operator exploits their centralized position and frontruns user transactions. ## Risk analysis ### Sequencer failure No mechanism (sentiment: bad) There is no mechanism to have transactions be included if the sequencer is down or censoring. The Operator actively uses a TransactionFilterer contract, which requires accounts that enqueue or force transactions from L1 to be whitelisted. ### State validation Validity proofs (ST, SN) (3h execution delay; sentiment: good) STARKs and SNARKs are zero knowledge proofs that ensure state correctness. STARKs proofs are wrapped in SNARKs proofs for efficiency. SNARKs require a trusted setup. ### Data availability External (sentiment: bad) Proof construction and state derivation rely fully on data that is NOT published onchain. ### Exit window None (emergency upgrade path; sentiment: bad); 4d 3h (regular upgrade path; sentiment: warning) Non-emergency upgrades go through a 4d 3h delay, but the central operator can still censor withdrawal transactions by implementing a TransactionFilterer with no delay. There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable. ### Proposer failure Replace proposer (sentiment: warning) Only the whitelisted proposers can publish state roots on L1, so in the event of failure the withdrawals are frozen. There is a decentralized Governance system that can attempt changing Proposers with an upgrade. ## Stage GRVT is not even a Stage 0 project. ### Stage 0 4 requirements met. - Met: The project self-identifies as a Validium or Optimium. - Met: State roots are posted to Ethereum L1. - Met: A complete and functional proof system (fraud or validity proofs) is deployed. - Met: A source-available node exists that can reconstruct the L2 state when DA is accessible. Please note that the L2BEAT team has not verified the validity of the node source code. [View code](https://github.com/matter-labs/zksync-era) ### Stage 1 4 issues need fixing. **Principle** - Issue: Compromising ≥75% of the Security Council to push a malicious upgrade, or sequencer+DA-committee collusion to withhold data and finalize invalid state roots, should be the only ways (other than bugs) to steal funds or block withdrawals indefinitely. **Guidelines** - Met: The proof system meets the minimum trusted setup requirements defined in the L2BEAT [trusted setup assessment framework](https://forum.l2beat.com/t/the-trusted-setups-framework-for-zk-catalog/381). - Met: Prover source code is published. - 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. - Issue: The Security Council is not properly set up. ### Stage 2 1 issue needs fixing. - Issue: Upgrades unrelated to onchain provable bugs, including upgrades to the DA verifier, provide less than 30d to exit. [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 ### Data is not stored on chain The transaction data is not recorded on the Ethereum main chain. Transaction data is stored off-chain and only the hashes are posted onchain by the centralized Sequencer. **Risks** - Funds can be lost if the external data becomes unavailable (CRITICAL). **References** - [ExecutorFacet - _commitOneBatch() function](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code#F1#L50) ## State validation Each update to the system state must be accompanied by a ZK proof that ensures that the new state was derived by correctly applying a series of valid user transactions to the previous state. These proofs are then verified on Ethereum by a smart contract. ### Prover Architecture ZKsync Era proof system Boojum can be found [here](https://github.com/matter-labs/era-boojum/tree/main) and contains essential tools like the Prover, the Verifier, and other backend components. The specs of the system can be found [here](https://github.com/matter-labs/zksync-era/tree/main/prover). ### ZK Circuits ZKsync Era circuits are built from Boojum and are designed to replicate the behavior of the EVM. The source code can be found [here](https://github.com/matter-labs/era-zkevm_circuits/tree/main). The circuits are checked against tests that can be found [here](https://github.com/matter-labs/era-zkevm_test_harness/tree/main). **Risks** - Funds can be lost if the proof system is implemented incorrectly. ### Verification Keys Generation SNARK verification keys can be generated and checked against the Ethereum verifier contract using [this tool](https://github.com/matter-labs/zksync-era/tree/main/prover/crates/bin/vk_setup_data_generator_server_fri). The system requires a trusted setup. ### Prover: [Boojum](https://l2beat.com/zk-catalog/boojum) #### Trusted setups - Bellman (Plonk): - Aztec Ignition, risk green (lowest risk) per the [Trusted Setups Risk Framework](https://forum.l2beat.com/t/the-trusted-setups-framework-for-zk-catalog/381): Aztec Ignition is a trusted setup ceremony that was run by Aztec for KZG commitment over BN254 curve in 2019. It included 176 participants and was publicly open for participation. - Onchain verifiers: [EraVerifierPlonk](https://etherscan.io/address/0x0DAAB2B7b38ab48712996E760152c569FA356DbF#code) (1 not verified) - Used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era), [Abstract](https://l2beat.com/layer2s/projects/abstract), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm), [Sophon](https://l2beat.com/layer2s/projects/sophon), [Lens](https://l2beat.com/layer2s/projects/lens), [GRVT](https://l2beat.com/layer2s/projects/grvt) - Verifiers: 1 not verified - Zksync (Fflonk): - Aztec Ignition, risk green (lowest risk) per the [Trusted Setups Risk Framework](https://forum.l2beat.com/t/the-trusted-setups-framework-for-zk-catalog/381): Aztec Ignition is a trusted setup ceremony that was run by Aztec for KZG commitment over BN254 curve in 2019. It included 176 participants and was publicly open for participation. - Onchain verifiers: [EraVerifierFflonk](https://etherscan.io/address/0x8470d6B3fd71B5fE3906B4ea04498d18F721eDe9#code) (1 not verified) - Used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era), [Abstract](https://l2beat.com/layer2s/projects/abstract), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm), [Sophon](https://l2beat.com/layer2s/projects/sophon), [Lens](https://l2beat.com/layer2s/projects/lens), [GRVT](https://l2beat.com/layer2s/projects/grvt) - Verifiers: 1 not verified ### Program Hashes #### Boojum L2 Bootloader program v0.29.2 EraVM program that proves the correct execution of a batch of ZK Stack L2 blocks. - Hash: `0x01000911c4db4fe62c98e180cfa7e9b3a22fb15f505905d4bf36192f481551e6` - Repository: https://github.com/matter-labs/era-contracts/blob/v0.29.2/system-contracts/bootloader/bootloader.yul - Verification: successful - Used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era), [Abstract](https://l2beat.com/layer2s/projects/abstract), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm), [Sophon](https://l2beat.com/layer2s/projects/sophon), [Lens](https://l2beat.com/layer2s/projects/lens), [GRVT](https://l2beat.com/layer2s/projects/grvt), [ZERO Network](https://l2beat.com/layer2s/projects/zeronetwork), [zkCandy](https://l2beat.com/layer2s/projects/zkcandy) ##### Verification steps Prepare: 1. Install npm and yarn: `npm install --global yarn` 2. Install hardhat: `npm install -g hardhat` 3. Install foundry-zksync: `curl -L https://raw.githubusercontent.com/matter-labs/foundry-zksync/main/install-foundry-zksync | bash` from [here](https://foundry-book.zksync.io/introduction/installation/). Verify: 1. Checkout the correct branch in [era-contracts](https://github.com/matter-labs/era-contracts) repo: `git checkout v0.29.2`. Commit hash should be `dbfc9b5a40d68007dc405a9b669230104c1646e4`. 2. Execute recompute_hashes.sh script: `chmod +x recompute_hashes.sh` and `./recompute_hashes.sh`. Note that the script may require a specific version of `foundryup-zksync` and it will suggest the command to install it. However you might need to manually clear git working tree in the repo foundry-zksync (probably in ~/.foundry/matter-labs/foundry-zksync) to change versions. ## Upgrades & Governance ![A diagram of the upgrades and governance](https://l2beat.com/static/images/upgrades-and-governance/zkstack.1d46dba7.png) There are two main paths for contract upgrades in the shared ZK stack ecosystem - standard and emergency - both converging on the shared upgrade management contract ProtocolUpgradeHandler. The standard path involves a governance proposal and voting through the DAO, multiple timelock delays and finally approval by the Guardians or 4 SecurityCouncil participants. The emergency path allows for contract upgrades without any delay by the EmergencyUpgradeBoard, which acts as a 3/3 Multisig between SecurityCouncil, Guardians and the FoundationMultisig. ### Standard path #### On ZKsync Era Delegates can start new proposals by reaching a threshold of 21M ZK tokens on the ZKsync Era Rollup's ZkProtocolGovernor contract. This launches a 3d 'voting delay' after which the 7d voting period starts. During these first two periods, the proposal can be canceled by the proposer or if it falls below the proposing threshold. A proposal is only successful if it reaches both quorum (630M ZK tokens) and simple majority. When it reaches quorum, a remaining voting period of 3d is guaranteed by a potential late quorum vote extension. In the successful case, it can be queued in the 0s timelock which forwards it via the Gateway to Ethereum as an L2->L1 log. #### On Ethereum After the execution of the proposal-containing batch (3h delay), the proposal is now picked up by the ProtocolUpgradeHandler and enters the 3d 'legal veto period'. This serves as a window in which a veto could be coordinated offchain, to be then enforced by non-approval of Guardians and SecurityCouncil. A threshold of 2 Guardians can extend the veto period to 7d. After this a proposal enters a *waiting* state of 1mo, from which it can be immediately approved (cancelling the delay) by 4 participants of the SecurityCouncil. For the unlikely case that the Security Council does not approve here, the Guardians can instead approve the proposal, or nobody. In the two latter cases, the waiting period is enforced in full. A proposal cannot be actively cancelled in the ProtocolUpgradeHandler, but will expire if not approved within the waiting period. An approved proposal now enters the *pendingExecution* state for a final delay of 1d and can then be executed. #### Other governance tracks There are two other tracks of Governance also starting with DAO Delegate proposals the ZKsync Era rollup: 1) Token Program Proposals that add new minters, allocations or upgrade the ZK token and 2) Governance Advisory Proposals that e.g. change the ZK Credo or other offchain Governance Procedures without onchain targets. The protocol for these two other tracks is similar to the first part of the standard path described above (albeit having different quorum and timelock values), and not passing over to the Ethereum L1. Further customizations are that the ZkFoundationMultisig can propose to the ZkTokenGovernor without a threshold and that the Guardians' L2 alias can cancel proposals in the ZkTokenGovernor and the ZkGovOpsGovernor. ### Emergency path SecurityCouncil (6/8), Guardians (5/8) and ZkFoundationMultisig (3/6) form a de-facto 3/3 Multisig by pushing an immediate upgrade proposal through the EmergencyUpgradeBoard, which circumvents all delays and executes immediately via the ProtocolUpgradeHandler. ### Upgrade Delays The cumulative duration of the upgrade paths from the moment of a voted 'successful' proposal is 4d 3h or 8d 3h (depending on Guardians extending the LegalVetoPeriod) for Standard, 0 for Emergency and 1mo 4d for the path in which the SecurityCouncil is not approving the proposal. ### Freezing The SecurityCouncil can freeze (pause withdrawals and settlement) all chains connected to the current ChainTypeManager. Either for a softFreeze of 12h or a hardFreeze of 7d. After a softFreeze and / or a hardFreeze, a proposal from the EmergencyUpgradeBoard has to be passed before subsequent freezes are possible. Only the SecurityCouncil can unfreeze an active freeze. ### ZK cluster Admin and Chain Admin Apart from the paths that can upgrade all shared implementations, the ZK stack governance system defines other roles that can modify the system: A single *ZK cluster Admin* role who governs parameters in the shared contracts and a *Chain Admin* role (defined in each chain-specific diamond contract) for managing parameters of each individual ZK chain that builds on the stack. These chain-specific actions include critical operations like setting a transaction filterer that can censor L1 -> L2 messages, changing the DA mode, migrating the chain to a different settlement layer and standard operations like setting fee parameters and adding / removing Validators in the ValidatorTimelock. For rollups, data availability on Ethereum is validated by a RollupL1DAValidator contract (or a RelayedSLDAValidator on the Gateway). Each rollup can become a permanent rollup (through their Chain Admin) which disallows DA changes to non-whitelisted sources or settlement layers in the future. The source of truth for rollup-compliant DA validator contracts is the RollupDAManager contract, which is administered via the ProtocolUpgradeHandler. ZKsync Era's Chain Admin differs from the others as it also has the above *ZK cluster Admin* role in the shared ZK stack contracts. ### 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: 33 - Last upgrade: 1mo 20d ago - Avg upgrade interval: 4mo 28d - 2026-08-20 08:51 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x5de81926ab9765d4294a27405abf5bb82302196cce39c771c2005e9e7cb28611](https://etherscan.io/tx/0x5de81926ab9765d4294a27405abf5bb82302196cce39c771c2005e9e7cb28611), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-08-14 08:58 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xba32e7c45d24c1e62cab727c08d3c0134210ba73c27299751060f9810f77427e](https://etherscan.io/tx/0xba32e7c45d24c1e62cab727c08d3c0134210ba73c27299751060f9810f77427e), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-08-11 09:38 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xe93d3af0aeb00f811edd3077b734b5e76842842ea919aaeead2c19c4d0157a31](https://etherscan.io/tx/0xe93d3af0aeb00f811edd3077b734b5e76842842ea919aaeead2c19c4d0157a31), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-07-22 10:09 UTC, upgrade of [ServerNotifier](https://etherscan.io/address/0xfca808A744735D9919EEBe4660B8Fd897456Ce31#code): transaction [0xdbd5285f559e4ae32457b8425f67e1dfe76575c40999499e0b55d5cf985b85d8](https://etherscan.io/tx/0xdbd5285f559e4ae32457b8425f67e1dfe76575c40999499e0b55d5cf985b85d8), implementations: [0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A](https://etherscan.io/address/0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A#code) ([diff](https://disco.l2beat.com/diff/eth:0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A/eth:0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A)) - 2026-06-18 10:13 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xa5133fa49c851e0a36f14a62515213fb1268e877a6ba35f0978f8c4e369074e9](https://etherscan.io/tx/0xa5133fa49c851e0a36f14a62515213fb1268e877a6ba35f0978f8c4e369074e9), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-06-16 11:46 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xedafd71bf96d2993dff23fca5d6d2e1ace52468cc10eed9e68cf260529156b7b](https://etherscan.io/tx/0xedafd71bf96d2993dff23fca5d6d2e1ace52468cc10eed9e68cf260529156b7b), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2025-12-26 20:29 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x85dba00b8749a3bac358b1b3c0c62dc9b3eb7d00b5e0da81955fad460360395b](https://etherscan.io/tx/0x85dba00b8749a3bac358b1b3c0c62dc9b3eb7d00b5e0da81955fad460360395b), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x431449e2a28A69122860A4956A3f7191eE15aFBC/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2025-12-08 12:06 UTC, upgrade of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0x749b9e6eed328052d679eb86639be807b4acf811ac8786f730b45258ba41ce6f](https://explorer.zksync.io/tx/0x749b9e6eed328052d679eb86639be807b4acf811ac8786f730b45258ba41ce6f), implementations: [0x4fcd824D304e9b1584CdBb582c104BDcbFb11274](https://explorer.zksync.io/address/0x4fcd824D304e9b1584CdBb582c104BDcbFb11274#code) ([diff](https://disco.l2beat.com/diff/zksync:0x01a6715d3560241E09E865a46122bf347A576c09/zksync:0x4fcd824D304e9b1584CdBb582c104BDcbFb11274)) - 2025-10-15 09:11 UTC, upgrade of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0x2309df20dd1cb3f3a3289e97517d10d399989292f966578240ec387246a13e61](https://etherscan.io/tx/0x2309df20dd1cb3f3a3289e97517d10d399989292f966578240ec387246a13e61), implementations: [0x36625Bd3dDB469377C6e9893712158cA3c0cC14B](https://etherscan.io/address/0x36625Bd3dDB469377C6e9893712158cA3c0cC14B#code) ([diff](https://disco.l2beat.com/diff/eth:0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A/eth:0x36625Bd3dDB469377C6e9893712158cA3c0cC14B)) - 2025-10-15 09:09 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0xc89423b4909080fB8F8A43dF5E1C27001e55C24B](https://etherscan.io/address/0xc89423b4909080fB8F8A43dF5E1C27001e55C24B#code) ([diff](https://disco.l2beat.com/diff/eth:0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32/eth:0xc89423b4909080fB8F8A43dF5E1C27001e55C24B)) - 2025-10-15 09:09 UTC, upgrade of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x669ed5BB1377C917333e7d4223ce3419EE4099fD](https://etherscan.io/address/0x669ed5BB1377C917333e7d4223ce3419EE4099fD#code) ([diff](https://disco.l2beat.com/diff/eth:0x382fb241396eA915108e7B7Ce1adE1322bA73aeE/eth:0x669ed5BB1377C917333e7d4223ce3419EE4099fD)) - 2025-10-15 09:09 UTC, upgrade of [CTMDeploymentTracker](https://etherscan.io/address/0x6078F6B379f103de1Aa912dc46bb8Df0c8809860#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991](https://etherscan.io/address/0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991#code) ([diff](https://disco.l2beat.com/diff/eth:0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1/eth:0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991)) - 2025-10-15 09:09 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x4aB7204e4205c96C32E23ADa9191720976dC084f](https://etherscan.io/address/0x4aB7204e4205c96C32E23ADa9191720976dC084f#code) ([diff](https://disco.l2beat.com/diff/eth:0x345314c7E4af84B763d98d23f772622E23AfB5CE/eth:0x4aB7204e4205c96C32E23ADa9191720976dC084f)) - 2025-10-15 09:09 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083](https://etherscan.io/address/0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083#code) ([diff](https://disco.l2beat.com/diff/eth:0xBa05B8B761386289Ba413a74AF1933d6a76E1b52/eth:0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083)) - 2025-09-19 12:53 UTC, deployment of [ChainAssetHandler](https://etherscan.io/address/0xDd5CB8B9037357B4cD37391A073798f8aaB61076#code): transaction [0x960c2e5bb98f4b9a07087b3b50fdc4681bbea1467aab3748dbb0050311f54ede](https://etherscan.io/tx/0x960c2e5bb98f4b9a07087b3b50fdc4681bbea1467aab3748dbb0050311f54ede), implementations: [0xaa180C70126f751C164465638770B865965A744B](https://etherscan.io/address/0xaa180C70126f751C164465638770B865965A744B#code) - 2025-07-11 04:56 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x50482c232f408d2e39fcaf30df79e587c0859e2f36e476b9d4deda048e3f1a45](https://etherscan.io/tx/0x50482c232f408d2e39fcaf30df79e587c0859e2f36e476b9d4deda048e3f1a45), implementations: [0x431449e2a28A69122860A4956A3f7191eE15aFBC](https://etherscan.io/address/0x431449e2a28A69122860A4956A3f7191eE15aFBC#code) ([diff](https://disco.l2beat.com/diff/eth:0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4/eth:0x431449e2a28A69122860A4956A3f7191eE15aFBC)), [0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22](https://etherscan.io/address/0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22#code) ([diff](https://disco.l2beat.com/diff/eth:0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4/eth:0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22)), [0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec](https://etherscan.io/address/0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec#code) ([diff](https://disco.l2beat.com/diff/eth:0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f/eth:0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec)), [0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A](https://etherscan.io/address/0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A#code) ([diff](https://disco.l2beat.com/diff/eth:0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490/eth:0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A)) - 2025-06-19 14:26 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32](https://etherscan.io/address/0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32#code) ([diff](https://disco.l2beat.com/diff/eth:0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87/eth:0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32)) - 2025-06-19 14:26 UTC, upgrade of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x382fb241396eA915108e7B7Ce1adE1322bA73aeE](https://etherscan.io/address/0x382fb241396eA915108e7B7Ce1adE1322bA73aeE#code) ([diff](https://disco.l2beat.com/diff/eth:0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad/eth:0x382fb241396eA915108e7B7Ce1adE1322bA73aeE)) - 2025-06-19 14:26 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x345314c7E4af84B763d98d23f772622E23AfB5CE](https://etherscan.io/address/0x345314c7E4af84B763d98d23f772622E23AfB5CE#code) ([diff](https://disco.l2beat.com/diff/eth:0x6D598c77AF57Bfa17201483400615c61819dD45A/eth:0x345314c7E4af84B763d98d23f772622E23AfB5CE)) - 2025-06-19 14:26 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0xBa05B8B761386289Ba413a74AF1933d6a76E1b52](https://etherscan.io/address/0xBa05B8B761386289Ba413a74AF1933d6a76E1b52#code) ([diff](https://disco.l2beat.com/diff/eth:0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947/eth:0xBa05B8B761386289Ba413a74AF1933d6a76E1b52)) - 2025-05-19 07:17 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xf21daa11dac7aa6d48bcf8f8d76d8c43900db3022d183389a8e16858cabdd0cb](https://etherscan.io/tx/0xf21daa11dac7aa6d48bcf8f8d76d8c43900db3022d183389a8e16858cabdd0cb), implementations: [0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4](https://etherscan.io/address/0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4#code) ([diff](https://disco.l2beat.com/diff/eth:0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb/eth:0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4)), [0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4](https://etherscan.io/address/0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4#code) ([diff](https://disco.l2beat.com/diff/eth:0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1/eth:0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4)), [0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f](https://etherscan.io/address/0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f#code) ([diff](https://disco.l2beat.com/diff/eth:0x36b026c39125964D99596CE302866B5A59E4dE27/eth:0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f)), [0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490](https://etherscan.io/address/0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490#code) ([diff](https://disco.l2beat.com/diff/eth:0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800/eth:0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490)) - 2025-05-14 05:09 UTC, deployment of [ServerNotifier](https://etherscan.io/address/0xfca808A744735D9919EEBe4660B8Fd897456Ce31#code): transaction [0xbeb7447fc88b154a4730b01cb1a75b7093095056e88818c3659253111d06e66f](https://etherscan.io/tx/0xbeb7447fc88b154a4730b01cb1a75b7093095056e88818c3659253111d06e66f), implementations: [0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A](https://etherscan.io/address/0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A#code) - 2025-04-28 12:33 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87](https://etherscan.io/address/0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87#code) ([diff](https://disco.l2beat.com/diff/eth:0xb720523EC3c615b069453bF4B0584CEbF034706f/eth:0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87)) - 2025-04-28 12:33 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0x6D598c77AF57Bfa17201483400615c61819dD45A](https://etherscan.io/address/0x6D598c77AF57Bfa17201483400615c61819dD45A#code) ([diff](https://disco.l2beat.com/diff/eth:0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb/eth:0x6D598c77AF57Bfa17201483400615c61819dD45A)) - 2025-04-28 12:33 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947](https://etherscan.io/address/0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947#code) ([diff](https://disco.l2beat.com/diff/eth:0x40B1060a114380f40faC6869c5B383f47e61530c/eth:0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947)) - 2025-03-31 08:00 UTC, upgrade of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A](https://etherscan.io/address/0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A#code) ([diff](https://disco.l2beat.com/diff/eth:0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604/eth:0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A)) - 2025-03-31 08:00 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0xb720523EC3c615b069453bF4B0584CEbF034706f](https://etherscan.io/address/0xb720523EC3c615b069453bF4B0584CEbF034706f#code) ([diff](https://disco.l2beat.com/diff/eth:0x0029e562c0b54C0b88cB22adF4346DbfEC87400c/eth:0xb720523EC3c615b069453bF4B0584CEbF034706f)) - 2025-03-31 08:00 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb](https://etherscan.io/address/0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb#code) ([diff](https://disco.l2beat.com/diff/eth:0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75/eth:0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb)) - 2025-03-24 09:29 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xd442b78fb0d2ccccea791f60de88cc4d7214fff454429c552be59c8778cbb9f3](https://etherscan.io/tx/0xd442b78fb0d2ccccea791f60de88cc4d7214fff454429c552be59c8778cbb9f3), implementations: [0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb](https://etherscan.io/address/0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb#code) ([diff](https://disco.l2beat.com/diff/eth:0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a/eth:0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb)), [0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1](https://etherscan.io/address/0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1#code) ([diff](https://disco.l2beat.com/diff/eth:0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9/eth:0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1)), [0x36b026c39125964D99596CE302866B5A59E4dE27](https://etherscan.io/address/0x36b026c39125964D99596CE302866B5A59E4dE27#code) ([diff](https://disco.l2beat.com/diff/eth:0x5575218cECd370E1d630d1AdB03c254B0B376821/eth:0x36b026c39125964D99596CE302866B5A59E4dE27)), [0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800](https://etherscan.io/address/0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800#code) ([diff](https://disco.l2beat.com/diff/eth:0xBB13642F795014E0EAC2b0d52ECD5162ECb66712/eth:0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800)) - 2025-02-09 13:53 UTC, deployment of [CTMDeploymentTracker](https://etherscan.io/address/0x6078F6B379f103de1Aa912dc46bb8Df0c8809860#code): transaction [0x8b5a21b3473a638022e84097a99c4668bb0a454686b737e87957729c4822741b](https://etherscan.io/tx/0x8b5a21b3473a638022e84097a99c4668bb0a454686b737e87957729c4822741b), implementations: [0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1](https://etherscan.io/address/0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1#code) - 2025-02-09 13:52 UTC, deployment of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x50619c1506e8e93cc28017847b5690b6a0784bc2b08c1dbb8555b71525b72351](https://etherscan.io/tx/0x50619c1506e8e93cc28017847b5690b6a0784bc2b08c1dbb8555b71525b72351), implementations: [0x40B1060a114380f40faC6869c5B383f47e61530c](https://etherscan.io/address/0x40B1060a114380f40faC6869c5B383f47e61530c#code) - 2025-02-09 13:50 UTC, deployment of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0xc47e24e8cc6c7a493bbb1a46b74f1ff113fad2e35d7596aa688df5bf0402fc65](https://etherscan.io/tx/0xc47e24e8cc6c7a493bbb1a46b74f1ff113fad2e35d7596aa688df5bf0402fc65), implementations: [0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad](https://etherscan.io/address/0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad#code) - 2025-02-06 15:32 UTC, deployment of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0xa3d1fa107e6dc4ce67d92a5af74aa7dc34602c2a1d46727790819c1f974bed95](https://etherscan.io/tx/0xa3d1fa107e6dc4ce67d92a5af74aa7dc34602c2a1d46727790819c1f974bed95), implementations: [0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604](https://etherscan.io/address/0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604#code) - 2025-01-28 05:38 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x733c89da487edb502dc65f5115ada9cef6b44128a85cf36adbde4821e13abe31](https://etherscan.io/tx/0x733c89da487edb502dc65f5115ada9cef6b44128a85cf36adbde4821e13abe31), implementations: [0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a](https://etherscan.io/address/0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a#code) ([diff](https://disco.l2beat.com/diff/eth:0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a/eth:0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a)), [0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9](https://etherscan.io/address/0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9#code) ([diff](https://disco.l2beat.com/diff/eth:0xE60E94fCCb18a81D501a38959E532C0A85A1be89/eth:0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9)), [0x5575218cECd370E1d630d1AdB03c254B0B376821](https://etherscan.io/address/0x5575218cECd370E1d630d1AdB03c254B0B376821#code) ([diff](https://disco.l2beat.com/diff/eth:0xCDB6228b616EEf8Df47D69A372C4f725C43e718C/eth:0x5575218cECd370E1d630d1AdB03c254B0B376821)), [0xBB13642F795014E0EAC2b0d52ECD5162ECb66712](https://etherscan.io/address/0xBB13642F795014E0EAC2b0d52ECD5162ECb66712#code) ([diff](https://disco.l2beat.com/diff/eth:0xaD193aDe635576d8e9f7ada71Af2137b16c64075/eth:0xBB13642F795014E0EAC2b0d52ECD5162ECb66712)) - 2025-01-08 16:00 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5](https://etherscan.io/tx/0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5), implementations: [0x0029e562c0b54C0b88cB22adF4346DbfEC87400c](https://etherscan.io/address/0x0029e562c0b54C0b88cB22adF4346DbfEC87400c#code) ([diff](https://disco.l2beat.com/diff/eth:0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13/eth:0x0029e562c0b54C0b88cB22adF4346DbfEC87400c)) - 2025-01-08 16:00 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5](https://etherscan.io/tx/0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5), implementations: [0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75](https://etherscan.io/address/0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75#code) ([diff](https://disco.l2beat.com/diff/eth:0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274/eth:0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75)) - 2024-11-12 02:51 UTC, deployment of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d](https://etherscan.io/tx/0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d), implementations: [0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a](https://etherscan.io/address/0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a#code), [0xE60E94fCCb18a81D501a38959E532C0A85A1be89](https://etherscan.io/address/0xE60E94fCCb18a81D501a38959E532C0A85A1be89#code), [0xCDB6228b616EEf8Df47D69A372C4f725C43e718C](https://etherscan.io/address/0xCDB6228b616EEf8Df47D69A372C4f725C43e718C#code), [0xaD193aDe635576d8e9f7ada71Af2137b16c64075](https://etherscan.io/address/0xaD193aDe635576d8e9f7ada71Af2137b16c64075#code) - 2024-09-09 13:09 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x21aec24a9df97ce4886d699314be627b0818da4d1987349421fb3df102c43f2b](https://etherscan.io/tx/0x21aec24a9df97ce4886d699314be627b0818da4d1987349421fb3df102c43f2b), implementations: [0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13](https://etherscan.io/address/0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13#code) ([diff](https://disco.l2beat.com/diff/eth:0x12f893689f9603991a8c22C249FFd0509Be95661/eth:0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13)) - 2024-08-06 08:56 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xc1e73b06359759201b76ab7654e0bd49011f33c0230dfc24423985fbf36ea817](https://etherscan.io/tx/0xc1e73b06359759201b76ab7654e0bd49011f33c0230dfc24423985fbf36ea817), implementations: [0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274](https://etherscan.io/address/0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274#code) ([diff](https://disco.l2beat.com/diff/eth:0x8279B7E48fA074f966385d87AEf29Bd031e54fD5/eth:0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274)) - 2024-06-10 09:25 UTC, upgrade of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0xa6bc022ba0f60ac6f10a6efb84b261e9ca1b327a611bdd7a1f4d37cc9b027a3c](https://explorer.zksync.io/tx/0xa6bc022ba0f60ac6f10a6efb84b261e9ca1b327a611bdd7a1f4d37cc9b027a3c), implementations: [0x01a6715d3560241E09E865a46122bf347A576c09](https://explorer.zksync.io/address/0x01a6715d3560241E09E865a46122bf347A576c09#code) ([diff](https://disco.l2beat.com/diff/zksync:0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14/zksync:0x01a6715d3560241E09E865a46122bf347A576c09)) - 2024-06-04 17:04 UTC, deployment of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x514bbf46d227eee8567825bf5c8ee1855aa8a1916f7fee7b191e2e3d5ecba849](https://etherscan.io/tx/0x514bbf46d227eee8567825bf5c8ee1855aa8a1916f7fee7b191e2e3d5ecba849), implementations: [0x8279B7E48fA074f966385d87AEf29Bd031e54fD5](https://etherscan.io/address/0x8279B7E48fA074f966385d87AEf29Bd031e54fD5#code) - 2024-06-04 17:03 UTC, deployment of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xdbb03a14ea223de3db4ac0916e78123bd0a1dde68e98952326d8382d29ac4d61](https://etherscan.io/tx/0xdbb03a14ea223de3db4ac0916e78123bd0a1dde68e98952326d8382d29ac4d61), implementations: [0x12f893689f9603991a8c22C249FFd0509Be95661](https://etherscan.io/address/0x12f893689f9603991a8c22C249FFd0509Be95661#code) - 2024-05-21 18:48 UTC, deployment of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0x5bfce59c2ad18019ef20d58a3f1ec496cdc85537fc9564c932f7dcbbb2a15b56](https://explorer.zksync.io/tx/0x5bfce59c2ad18019ef20d58a3f1ec496cdc85537fc9564c932f7dcbbb2a15b56), implementations: [0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14](https://explorer.zksync.io/address/0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14#code) ## Updates Each date links the update on the HTML page, which also shows its contract diffs. ### [2026-10-02 12:40 UTC](https://l2beat.com/layer2s/projects/grvt?update=74029814) (high severity, 16 changes) Executed this proposal: https://www.tally.xyz/gov/zksync/proposal/49883493212277767948924829453899549013679463473253620701602979414799679547598?govId=eip155%3A324%3A0x76705327e682F2d96943280D99464Ab61219e34f. Now each chain admin can increase the execution delay of its chain (`increaseChainExecutionDelay`), the owner can set it freely (`setChainExecutionDelay`). The effective delay for GRVT is tracked in `executionDelayGRVT` (still 3h). Also adds a new `UPGRADER_ROLE` that can call `upgradeChainFromVersion()` through the VTL (forwarded to the diamond). Currently nobody holds the role for GRVT yet (tracked in `upgraderVTL`). ### [2026-09-04 13:45 UTC](https://l2beat.com/layer2s/projects/grvt?update=cc5f6a14) (high severity, 5 changes) Governance proposal executed: https://tools.l2beat.com/decoder-new/?hash=0x91b14e9960db6c886e6b0294122f0c5b08398b371f83c83072cab0a00c3c153a&data=AwA. It uses metamask delegation manager to execute a ERC-20 approval + L2 bridgehub transaction that matches the standard grvt gov transaction (e.g. https://tools.l2beat.com/decoder-new/?hash=0x12872dd4becaa4cfd45173bad5b49b2d7d005450ce47e57d05e6346ca4039227&data=AwA). Decoding was done by chatgpt, our tooling does not support this `_executionCallDatas` format. ### [2026-08-21 11:14 UTC](https://l2beat.com/layer2s/projects/grvt?update=31e24746) (high severity, 11 changes) GrvtChainAdminMultisig upgraded the boojum verifiers to version v0.30.1 (the same version as zksync era). The new verifiers are not yet reproduced. ### [2026-08-17 11:29 UTC](https://l2beat.com/layer2s/projects/grvt?update=60e1a804) (high severity, 12 changes) GrvtChainAdminMultisig upgraded the boojum verifiers to version v0.30.0 (one version behind zksync era). The new verifiers are not yet reproduced. ### [2026-08-12 09:56 UTC](https://l2beat.com/layer2s/projects/grvt?update=d1472782) (high severity, 13 changes) Rotated two grvt ms members. Upgraded boojum verifier to v29.5, one version behind the latest zksync era verifier. It is not reproduced yet. ### [2026-08-05 10:27 UTC](https://l2beat.com/layer2s/projects/grvt?update=82d2d628) (high severity, 15 changes) Executed 2 gov proposal with several upgrade transactions going to L2: https://tools.l2beat.com/decoder-new/?hash=0x12872dd4becaa4cfd45173bad5b49b2d7d005450ce47e57d05e6346ca4039227&data=AwA and https://tools.l2beat.com/decoder-new/?hash=0xc479b923d2614903ef0405eff70a31859ff0b516993d8d7872e93c4d2c14d2ee&data=AwA. Also updated permissions and ownership of various contracts: - Expanded admin ms with 4 addresses 2/3 -> 4/7. - Created another ms with the same members as the admin for bridge-related contracts. - Governance, bridge and trx filterer ownership changed from EOA to 4/7 ms. ### [2026-07-06 10:03 UTC](https://l2beat.com/layer2s/projects/grvt?update=5fae3b70) (2 changes) Governance transaction from L1 -> L2: https://tools.l2beat.com/decoder-new/?hash=0xaca859883993dac67cc7049946aca729dd4287c2eefdc0fc2b465fdc1c2f6906&data=AwA. ### [2026-07-01 10:20 UTC](https://l2beat.com/layer2s/projects/grvt?update=2308cb89) (2 changes) Governance transaction from L1 -> L2: https://tools.l2beat.com/decoder-new/?hash=0x188d7e979cc425fe64a3917bccf81bfc9601ecddc73be546a8d78410e3168846&data=AwA. ### [2026-06-18 10:19 UTC](https://l2beat.com/layer2s/projects/grvt?update=e5e851e7) (high severity, 14 changes) Upgraded boojum verifier to the latest version (same as zksync era). Also rotated admin ms member. ### [2026-06-16 09:39 UTC](https://l2beat.com/layer2s/projects/grvt?update=5e48304a) (3 changes) New scheduled tx targeting GBT (gas token) and contracts on L2: https://tools.l2beat.com/decoder-new/?hash=0xac73fadffe5aa2eb9b6d9b0ff4d9f1a4fa07eb147c3553d9e70718968bdb0139&data=AwA . ### [2026-05-20 11:55 UTC](https://l2beat.com/layer2s/projects/grvt?update=cc87ac25) (2 changes) One gov-approved transaction to grvt L2: https://tools.l2beat.com/decoder-new/?hash=0x52609446fe9a7597280df6778648d25af4bf6f389765ef506f1f759d6e6d9b41&data=AwA. ### [2026-05-18 09:51 UTC](https://l2beat.com/layer2s/projects/grvt?update=6a817754) (high severity, 9 changes) Upgraded GRVT bridge to align with ZK stack state of the art: https://disco.l2beat.com/diff/eth:0xf7B67bDDb74B5eD3De49e1a6Da4D1d7460F00780/eth:0x7F9FCdaf7f65Fd5737De61d8bF5617A9AA8cFaF1. Changes are: - Interfaces upgraded to the same versions as zksync era has - Added bridging ETH - Switched to using standard L1AssetRouter - Also increased `L2_GAS_LIMIT_DEPOSIT` by the factor of two (the amount of gas that could be used to consume deposit trx on L2). ### [2026-05-12 09:44 UTC](https://l2beat.com/layer2s/projects/grvt?update=cf6f885b) (2 changes) Two gov-approved transactions to grvt L2: https://tools.l2beat.com/decoder-new/?hash=0x9c4720dca52947f376a85b3e00f1a8f4fd6866a2c128d5b6857fc77b604c832f&data=AwA, https://tools.l2beat.com/decoder-new/?hash=0xbb0d5b5663bccfe8a0b73211149f0a469e32f6dfaf348f88df8117623b26b2f5&data=AwA. Config: use the new flattener implementation. ### [2026-04-27 13:18 UTC](https://l2beat.com/layer2s/projects/grvt?update=926af7eb) (2 changes) Another trx to L2 via governance: https://tools.l2beat.com/decoder-new/?hash=0xeab9b42383251bb874b226fd6b1089763b429c60250c33b3c25dcfa24d1e64a2&data=AwA. ### [2026-04-17 09:36 UTC](https://l2beat.com/layer2s/projects/grvt?update=b1bc4c18) (2 changes) A trx on L2 initiated via governance: https://tools.l2beat.com/decoder-new/?hash=0x6ac04a9181161aa6dcb9ad7ffc754e2cb8ffa280aa3b3c33848b8540fdd79bb6&data=AwA. Probably some L2 upgrade. ### [2026-04-08 08:25 UTC](https://l2beat.com/layer2s/projects/grvt?update=d51a0e22) (3 changes) Two trxs on L2 initiated via the governance: https://tools.l2beat.com/decoder-new/?hash=0xa7d217b096fe11b935388c891811da7e9ac0c6c6e83ffa2b3fcc58d70660fabc&data=AwA and https://tools.l2beat.com/decoder-new/?hash=0xfe93a52cfe69dbe665ca3f562787dd5e47a81e5e3bc906b4bc20fe20d876596e&data=AwA. Also rotated MS member. ### [2026-04-01 15:51 UTC](https://l2beat.com/layer2s/projects/grvt?update=8d67ffc2) (2 changes) Another proposal https://tools.l2beat.com/decoder-new/?hash=0xc6e49ea96a2f8e5fa8c305588783139488df8199772c6e20c673f8fdd14f9c3a&data=AwA. ### [2026-03-30 14:32 UTC](https://l2beat.com/layer2s/projects/grvt?update=1a1717aa) (2 changes) Another gov L2 upgrade: https://tools.l2beat.com/decoder-new/?hash=0x2ca64710efc0b4f21461ce86f124ce6cb1f7a8d5744cbf5c8d817fb6a36cfa9a&data=AwA. ### [2026-03-25 10:39 UTC](https://l2beat.com/layer2s/projects/grvt?update=89821927) (2 changes) Gov upgrade on L2: https://tools.l2beat.com/decoder-new/?hash=0x923c6a7d1189587410f25b5dbbc9e1a424a86c9da4b0f6a92d84d0e75e062b0f&data=AwA. ### [2026-03-16 12:09 UTC](https://l2beat.com/layer2s/projects/grvt?update=d7ccc933) (2 changes) Another upgrade on L2: https://tools.l2beat.com/decoder-new/?hash=0x7c1018383fb3497a7357518c6a597bf2e79feb352e370e3cea32b4e94ec9f634&data=AwA. ### [2026-03-06 11:03 UTC](https://l2beat.com/layer2s/projects/grvt?update=de5c499b) (2 changes) Executed a proposal to make an upgrade on L2: https://tools.l2beat.com/decoder-new/?hash=0xe22d2c318e36651439ad07df6c3938a27c1bce71b982d13f8fc4593d8d317e03&data=AwA. ### [2026-03-04 14:42 UTC](https://l2beat.com/layer2s/projects/grvt?update=a0980859) (2 changes) Executed a proposal to upgrade a contract on grvt L2: https://tools.l2beat.com/decoder-new/?hash=0x2d3eef6212fe42c32e6abf289e6f32c3ecb13393a1b82bc018333d62aabbb01d&data=AwA. ### [2026-02-25 16:55 UTC](https://l2beat.com/layer2s/projects/grvt?update=40fc8367) (2 changes) Executed two proposals that made calls on L2: https://tools.l2beat.com/decoder-new/?hash=0x0c5a83ed2a512b4bef5e9df04b3059482d300133cd754caf275e7cc8d05d6057&data=AwA, https://tools.l2beat.com/decoder-new/?hash=0x5d5d42502fdf2db575600e2d4f87d7f7a150d10d7570a8a21a0244299396d9b6&data=AwA. ### [2026-02-16 14:17 UTC](https://l2beat.com/layer2s/projects/grvt?update=1dbe4c28) (2 changes) Upgrade executed (target is some diamond contract on L2). ### [2026-02-02 13:18 UTC](https://l2beat.com/layer2s/projects/grvt?update=a87ef236) (2 changes) Governance executed some trx on L2, looks like some upgrade: https://tools.l2beat.com/decoder-new/?hash=0x90577ac34e4cc9776d6509341ba2cd1cf5e4c64f15b3d475e7eeca885b34e24a&data=AwA. ### [2026-01-28 10:54 UTC](https://l2beat.com/layer2s/projects/grvt?update=40017e40) (2 changes) Scheduled and executed a transaction that probably performed some upgrade on grvt L2: https://tools.l2beat.com/decoder-new/?hash=0xfe573f7a11dfb09da81066b411bb043ee09c55b605c5d120dafcb7663aaa460d&data=AwA. I have not found a link to grvt block explorer to verify it on L2. ### [2026-01-20 11:08 UTC](https://l2beat.com/layer2s/projects/grvt?update=7deab157) (2 changes) Scheduled and executed two proposals (https://etherscan.io/tx/0xb2ed029ae644311610a5c4bc16245ce1212b47763c5046f862e2e1bd8423a6a8#eventlog, https://etherscan.io/tx/0xdecb938d6e5f7e75786e854ded5d52eda3bc916cf536950baa6ba5f5167ae830#eventlog). These proposals initiated calls to L2. ### [2025-12-29 10:52 UTC](https://l2beat.com/layer2s/projects/grvt?update=9b5065b2) (high severity, 51 changes) Upgraded GRVT to zk stack v 29.2. ### [2025-12-22 12:44 UTC](https://l2beat.com/layer2s/projects/grvt?update=7eae4d8a) (2 changes) New template was applied, changes are old. ### [2025-07-14 12:47 UTC](https://l2beat.com/layer2s/projects/grvt?update=0c073a95) (13 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-11 12:47 UTC](https://l2beat.com/layer2s/projects/grvt?update=2207049e) (high severity, 42 changes) standard v28 upgrade. ### [2025-05-21 12:10 UTC](https://l2beat.com/layer2s/projects/grvt?update=ac1ce280) (3 changes) v27 upgrade complete. ### [2025-05-19 15:25 UTC](https://l2beat.com/layer2s/projects/grvt?update=9a9d04f9) (high severity, 53 changes) v27 upgrade to standard contracts. Same filterer. ### [2025-04-02 15:08 UTC](https://l2beat.com/layer2s/projects/grvt?update=2ad6c925) (1 change) shared zk stack contracts upgraded to v26: config related changes for all children chains. ### [2025-03-25 10:35 UTC](https://l2beat.com/layer2s/projects/grvt?update=d1f64a14) (high severity, 69 changes) Upgrade diamond to protocol v26. ### [2025-03-11 08:00 UTC](https://l2beat.com/layer2s/projects/grvt?update=cf676239) (11 changes) ValidatorTimelock governance transfer for ZIP 5. ### [2025-02-03 14:33 UTC](https://l2beat.com/layer2s/projects/grvt?update=2121984c) (3 changes) [ZIP-002] 'Reduce the execution delay from 21 hours to 3 hours' executed. ### [2025-01-30 10:43 UTC](https://l2beat.com/layer2s/projects/grvt?update=7ea87a0d) (3 changes) upgrade completed. ### [2025-01-28 06:33 UTC](https://l2beat.com/layer2s/projects/grvt?update=455fac79) (35 changes) upgrade to protocol version 25 (see zksync era for changelog). discodrive! ### [2025-01-10 11:53 UTC](https://l2beat.com/layer2s/projects/grvt?update=641fa953) (8 changes) Initial discovery of a standard ZK stack Validium. ## 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't force all transactions If a user is censored by the L2 Sequencer, they cannot by default force their transaction via the L1 queue. An active TransactionFilterer contract which allows only whitelisted accounts to enqueue, prevents it. Even if a user was specifically whitelisted, there is no mechanism that forces L2 Sequencer to include transactions from the queue in an L2 block, as they have the choice to process the queue in order or not at all. **Risks** - Users can be censored if the operator refuses to include their transactions. - Users can be censored if the Operator does not specifically whitelist them in the TransactionFilterer. **References** - [L1 - L2 interoperability - Developer's documentation](https://docs.zksync.io/zksync-protocol/rollup/l1_l2_communication#priority-operations-1) - [Mailbox facet](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code#F1#L472) - [TransactionFilterer](https://etherscan.io/address/0x8319fede99061c6723c86d366a903e8fa3a0f541#code#F1#L29) ## Withdrawals ### Regular messaging The user initiates L2->L1 messages by submitting a regular transaction on this chain. When the block containing that transaction is settled, the message becomes available for processing on L1. ZK proofs are required to settle blocks. **References** - [Withdrawing funds - ZKsync documentation](https://docs.zksync.io/zksync-protocol/rollup/bridging-assets) ### 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 from L1, including all forced withdrawals and deposits. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message. ## Permissions Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/grvt ### Ethereum #### Actors ##### EmergencyUpgradeBoard Addresses: [0xF73a7dCfa68E52030ec39E41a23DCA51F3aAa111](https://etherscan.io/address/0xF73a7dCfa68E52030ec39E41a23DCA51F3aAa111) A custom contract allowing a 3/3 of SecurityCouncil, ZK Foundation Multisig and Guardians to `executeEmergencyUpgrade()` via the ProtocolUpgradeHandler. - Can upgrade **with no delay** - ValidatorTimelock [via: ProtocolUpgradeHandler → ProxyAdmin] - BridgeHub [via: ProtocolUpgradeHandler → ProxyAdmin] - MessageRoot [via: ProtocolUpgradeHandler → ProxyAdmin] - CTMDeploymentTracker [via: ProtocolUpgradeHandler → ProxyAdmin] - L1AssetRouter [via: ProtocolUpgradeHandler → ProxyAdmin] - L1NativeTokenVault [via: ProtocolUpgradeHandler → ProxyAdmin] - ChainTypeManager [via: ProtocolUpgradeHandler → ProxyAdmin] - L1Nullifier [via: ProtocolUpgradeHandler → ProxyAdmin] - ChainAssetHandler [via: ProtocolUpgradeHandler → ProxyAdmin] - ProtocolUpgradeHandler [via: ProtocolUpgradeHandler → ProxyAdmin] - Can interact with BridgeHub - set critical contract addresses for the shared cluster, register settlement layers, pause and unpause migrations and the bridge and manage zk chain registration [via: ProtocolUpgradeHandler] - Can interact with L1NativeTokenVault - pause / unpause the bridge [via: ProtocolUpgradeHandler] - Can interact with ChainTypeManager - manage the shared ValidatorTimelock contract address and the admin role, register and execute upgrades (and set their deadlines), freeze, revert batches and set permissioned validators and fee params for all connected chains [via: ProtocolUpgradeHandler] - Can interact with L1Nullifier - pause, unpause and set critical escrow address references [via: ProtocolUpgradeHandler] - Can interact with ChainAssetHandler - pause, resume chain migrations [via: ProtocolUpgradeHandler] - Can interact with RollupDAManager - manage allowed rollup DA pairs (allowed to be used by rollups in permanent rollup mode) [via: ProtocolUpgradeHandler] Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#EmergencyUpgradeBoard), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#EmergencyUpgradeBoard), [Lens](https://l2beat.com/layer2s/projects/lens#EmergencyUpgradeBoard), [Sophon](https://l2beat.com/layer2s/projects/sophon#EmergencyUpgradeBoard), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#EmergencyUpgradeBoard) ##### GrvtChainAdminMultisig Addresses: [0x3a23919d4aA39e096E9d6420fd6a2861A20B19e5](https://etherscan.io/address/0x3a23919d4aA39e096E9d6420fd6a2861A20B19e5) A Multisig with 4/7 threshold. - Can upgrade **with no delay** - GRVTTransactionFilterer - GRVTBridgeProxy - Can interact with GrvtZkEvmAdmin - set the conversion factor for gas token deposits - Can interact with Diamond - administrate operator roles for this chain in the ValidatorTimelock, manage fees, apply predefined upgrades, manage censorship through a TransactionFilterer, set DA mode, migrate the chain to whitelisted settlement layers (Chain Admin role) [via: GrvtZkEvmAdmin] Participants (7): [0x7C1B26554cF3A724613bF47B24f7C65F324702f9](https://etherscan.io/address/0x7C1B26554cF3A724613bF47B24f7C65F324702f9), [0x436694cf0Fb5BF20F96c1FBA1315B26B32f06F4b](https://etherscan.io/address/0x436694cf0Fb5BF20F96c1FBA1315B26B32f06F4b), [0x79BfE9868a2613F3327FB2B9e3a39959165118F4](https://etherscan.io/address/0x79BfE9868a2613F3327FB2B9e3a39959165118F4), [0xC8552d52A6a8e92Ea37f3a305dE5e8dDbeB6e490](https://etherscan.io/address/0xC8552d52A6a8e92Ea37f3a305dE5e8dDbeB6e490), [0x4738eDE7Fb2d3E5596867cf60c668779de7CE8C4](https://etherscan.io/address/0x4738eDE7Fb2d3E5596867cf60c668779de7CE8C4), [0xE1Fd2981A9FbAAfBB73Cf253234516ECcaf4AFcE](https://etherscan.io/address/0xE1Fd2981A9FbAAfBB73Cf253234516ECcaf4AFcE), [0x9A4484BBDae765A84c802Cf0A4777D8b16AB1270](https://etherscan.io/address/0x9A4484BBDae765A84c802Cf0A4777D8b16AB1270) ##### Matter Labs Multisig Addresses: [0x4e4943346848c4867F81dFb37c4cA9C5715A7828](https://etherscan.io/address/0x4e4943346848c4867F81dFb37c4cA9C5715A7828) A Multisig with 4/7 threshold. - Can upgrade **with no delay** - ServerNotifier [via: EraChainAdminProxy → ProxyAdmin] - Can interact with BridgeHub - create new zk chains (based on the current version), register tokens (ZK cluster Admin role) [via: EraChainAdminProxy] - Can interact with ChainTypeManager - set the pending admin of this contract and the ServerNotifier contract address (ZK cluster Admin role) [via: EraChainAdminProxy] Participants (7): [0xEE7d66B84175cc423900595d1807A0371D66dE46](https://etherscan.io/address/0xEE7d66B84175cc423900595d1807A0371D66dE46), [0x3F0009D00cc78979d00Eb635490F23E8d6aCc481](https://etherscan.io/address/0x3F0009D00cc78979d00Eb635490F23E8d6aCc481), [0xC9A814A4dFE108A4d2b0C01abb4c196Ed7FB3D83](https://etherscan.io/address/0xC9A814A4dFE108A4d2b0C01abb4c196Ed7FB3D83), [0x3068415e0F857A5eEd03302A1F7E44f67468d2Bc](https://etherscan.io/address/0x3068415e0F857A5eEd03302A1F7E44f67468d2Bc), [0xFAdb20191Ab38362C50f52909817B74214CA79AE](https://etherscan.io/address/0xFAdb20191Ab38362C50f52909817B74214CA79AE), [0xAf0B2B58289857e9A6Cf91Fd30410dDcad9D9B28](https://etherscan.io/address/0xAf0B2B58289857e9A6Cf91Fd30410dDcad9D9B28), [0x7408A268e5E6e8F08917c5b71015F4B9044970C7](https://etherscan.io/address/0x7408A268e5E6e8F08917c5b71015F4B9044970C7) Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#Matter%20Labs%20Multisig), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#Matter%20Labs%20Multisig), [Lens](https://l2beat.com/layer2s/projects/lens#Matter%20Labs%20Multisig), [Sophon](https://l2beat.com/layer2s/projects/sophon#Matter%20Labs%20Multisig), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#Matter%20Labs%20Multisig) ##### SecurityCouncil Addresses: [0x59195219d1176E42f8e607e9AC114926D47f9035](https://etherscan.io/address/0x59195219d1176E42f8e607e9AC114926D47f9035) A Multisig with 6/8 threshold. Custom Multisig implementation that has a general threshold of 6 but also specific thresholds for upgrade approvals (4) or soft freezes (3). - Can interact with ProtocolUpgradeHandler - soft freeze, hard freeze, approve a protocol upgrade - Can interact with EmergencyUpgradeBoard - one of its 3/3 signers Participants (8): [0x34Ea62D4b9bBB8AD927eFB6ab31E3Ab3474aC93a](https://etherscan.io/address/0x34Ea62D4b9bBB8AD927eFB6ab31E3Ab3474aC93a) (GnosisSafe), [0x35eA56fd9eAd2567F339Eb9564B6940b9DD5653F](https://etherscan.io/address/0x35eA56fd9eAd2567F339Eb9564B6940b9DD5653F) (GnosisSafe), [0x69462a81ba94D64c404575f1899a464F123497A2](https://etherscan.io/address/0x69462a81ba94D64c404575f1899a464F123497A2) (GnosisSafe), [0x84BF0Ac41Eeb74373Ddddae8b7055Bf2bD3CE6E0](https://etherscan.io/address/0x84BF0Ac41Eeb74373Ddddae8b7055Bf2bD3CE6E0) (GnosisSafe), [0x9B8Be3278B7F0168D82059eb6BAc5991DcdfA803](https://etherscan.io/address/0x9B8Be3278B7F0168D82059eb6BAc5991DcdfA803) (GnosisSafe), [0xB7aC3A79A23B148c85fba259712c5A1e7ad0ca44](https://etherscan.io/address/0xB7aC3A79A23B148c85fba259712c5A1e7ad0ca44) (GnosisSafe), [0xc3Abc9f9AA75Be8341E831482cdA0125a7B1A23e](https://etherscan.io/address/0xc3Abc9f9AA75Be8341E831482cdA0125a7B1A23e) (GnosisSafe), [0xFB90Da9DC45378A1B50775Beb03aD10C7E8DC231](https://etherscan.io/address/0xFB90Da9DC45378A1B50775Beb03aD10C7E8DC231) (GnosisSafe) Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#SecurityCouncil), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#SecurityCouncil), [Lens](https://l2beat.com/layer2s/projects/lens#SecurityCouncil), [Sophon](https://l2beat.com/layer2s/projects/sophon#SecurityCouncil), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#SecurityCouncil) **References** - [Security Council members - ZK Nation docs](https://docs.zknation.io/zksync-governance/schedule-3-zksync-security-council) ##### Guardians Addresses: [0x600dA620Ab29F41ABC6596a15981e14cE58c86b8](https://etherscan.io/address/0x600dA620Ab29F41ABC6596a15981e14cE58c86b8) A Multisig with 5/8 threshold. Custom Multisig implementation that has a general threshold of 5 and a specific threshold for extending the legal voting period of 2. - Can interact with ProtocolUpgradeHandler - extend the legal veto period, approve a protocol upgrade - Can interact with EmergencyUpgradeBoard - one of its 3/3 signers Participants (8): [0x015318c16AE443a20DE0A776dB06a59F0D279057](https://etherscan.io/address/0x015318c16AE443a20DE0A776dB06a59F0D279057) (GnosisSafe), [0x178D8Eb1A1fb81B5102808A83318Bb04C6a9fC6D](https://etherscan.io/address/0x178D8Eb1A1fb81B5102808A83318Bb04C6a9fC6D) (GnosisSafe), [0x2A90830083C5Ca1f18d7AA7fCDC2998f93475384](https://etherscan.io/address/0x2A90830083C5Ca1f18d7AA7fCDC2998f93475384) (GnosisSafe), [0x538612F6eba6ff80FBD95D60dCDee16b8FfF2c0f](https://etherscan.io/address/0x538612F6eba6ff80FBD95D60dCDee16b8FfF2c0f) (GnosisSafe), [0x55c671BcE13120387Ded710A1d1b80C0e3d8E857](https://etherscan.io/address/0x55c671BcE13120387Ded710A1d1b80C0e3d8E857) (GnosisSafe), [0x590926dBCDfD19627c3BbD2A6Eb96DeC7a3AbF69](https://etherscan.io/address/0x590926dBCDfD19627c3BbD2A6Eb96DeC7a3AbF69) (GnosisSafe), [0x6D26874130A174839b9cd8CB87Ed4E09D0c1a5f0](https://etherscan.io/address/0x6D26874130A174839b9cd8CB87Ed4E09D0c1a5f0) (GnosisSafe), [0xCe7a3dFcc35602155809920Ff65e093aa726f6cf](https://etherscan.io/address/0xCe7a3dFcc35602155809920Ff65e093aa726f6cf) (GnosisSafe) Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#Guardians), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#Guardians), [Lens](https://l2beat.com/layer2s/projects/lens#Guardians), [Sophon](https://l2beat.com/layer2s/projects/sophon#Guardians), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#Guardians) **References** - [Guardians - ZK Nation docs](https://docs.zknation.io/zksync-governance/schedule-4-zksync-guardians) ##### ValidatorTimelock Addresses: [0x2e5110cF18678Ec99818bFAa849B8C881744b776](https://etherscan.io/address/0x2e5110cF18678Ec99818bFAa849B8C881744b776) Intermediary contract between the *Validators* and the central diamond contract that delays block execution (ie withdrawals and other L2 --> L1 messages) by at least 3h. Duration could be configured individually for zk stack chains by chain admins. All delays are capped at 30 days. - Can interact with Diamond - commit, prove, execute, revert batches directly in the main Diamond contract. This role is typically held by a proxying ValidatorTimelock Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ValidatorTimelock), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ValidatorTimelock), [Lens](https://l2beat.com/layer2s/projects/lens#ValidatorTimelock), [Sophon](https://l2beat.com/layer2s/projects/sophon#ValidatorTimelock), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ValidatorTimelock) ##### GRVTTransactionFilterer Addresses: [0x3Cd52B238Ac856600b22756133eEb31ECb25109a](https://etherscan.io/address/0x3Cd52B238Ac856600b22756133eEb31ECb25109a) - Can interact with Diamond - define addresses that can send transactions from L1 to L2 (e.g. for deposits, withdrawals, queued transactions). This is enforced in the Mailbox Facet ##### ZK Foundation Multisig Addresses: [0xbC1653bd3829dfEc575AfC3816D4899cd103B51c](https://etherscan.io/address/0xbC1653bd3829dfEc575AfC3816D4899cd103B51c) A Multisig with 3/6 threshold. - Can interact with EmergencyUpgradeBoard - one of its 3/3 signers Participants (6): [0x64FEca7976955a512aB9159f91E7dD1D55425293](https://etherscan.io/address/0x64FEca7976955a512aB9159f91E7dD1D55425293), [0xA10fcD4B012467FAC48ce63838B7bE56AB16bE52](https://etherscan.io/address/0xA10fcD4B012467FAC48ce63838B7bE56AB16bE52), [0x56B3120c32AE9C3188fafc5Cc542F9c53B0b2222](https://etherscan.io/address/0x56B3120c32AE9C3188fafc5Cc542F9c53B0b2222), [0x441e5c8910Ef39996B2D01499509861228cbc2d1](https://etherscan.io/address/0x441e5c8910Ef39996B2D01499509861228cbc2d1), [0x0B2E7ffbcD1E3e6f5034555Fb638889FE7564709](https://etherscan.io/address/0x0B2E7ffbcD1E3e6f5034555Fb638889FE7564709), [0x610e45F112e0c8a9aA7137677C83E7A198A1b991](https://etherscan.io/address/0x610e45F112e0c8a9aA7137677C83E7A198A1b991) Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZK%20Foundation%20Multisig), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZK%20Foundation%20Multisig), [Lens](https://l2beat.com/layer2s/projects/lens#ZK%20Foundation%20Multisig), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZK%20Foundation%20Multisig), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZK%20Foundation%20Multisig) ##### GrvtBridgeAdminMultisig Addresses: [0x5CC33778d3aFa0979e6C59efEE27b73496c1B65c](https://etherscan.io/address/0x5CC33778d3aFa0979e6C59efEE27b73496c1B65c) A Multisig with 4/7 threshold. - Can interact with GRVTTransactionFilterer - manage the whitelist of addresses Participants (7): [0x4738eDE7Fb2d3E5596867cf60c668779de7CE8C4](https://etherscan.io/address/0x4738eDE7Fb2d3E5596867cf60c668779de7CE8C4), [0xE1Fd2981A9FbAAfBB73Cf253234516ECcaf4AFcE](https://etherscan.io/address/0xE1Fd2981A9FbAAfBB73Cf253234516ECcaf4AFcE), [0x9A4484BBDae765A84c802Cf0A4777D8b16AB1270](https://etherscan.io/address/0x9A4484BBDae765A84c802Cf0A4777D8b16AB1270), [0xC8552d52A6a8e92Ea37f3a305dE5e8dDbeB6e490](https://etherscan.io/address/0xC8552d52A6a8e92Ea37f3a305dE5e8dDbeB6e490), [0x79BfE9868a2613F3327FB2B9e3a39959165118F4](https://etherscan.io/address/0x79BfE9868a2613F3327FB2B9e3a39959165118F4), [0xe224125147fB0a3d0e1eC30Ed1573ed0632727CC](https://etherscan.io/address/0xe224125147fB0a3d0e1eC30Ed1573ed0632727CC), [0x293d3512083507664Ee5EDe44c0477f600e3A3BE](https://etherscan.io/address/0x293d3512083507664Ee5EDe44c0477f600e3A3BE) ##### Governance (0xbdC0…7335) Addresses: [0xbdC07D62fA117B195E579c2e299f037b158E7335](https://etherscan.io/address/0xbdC07D62fA117B195E579c2e299f037b158E7335) Allows scheduling transparent and shadow proposals, 'securityCouncil' role can execute without delay. - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist ##### GRVTBridgeProxy Addresses: [0xE17aeD2fC55f4A876315376ffA49FE6358113a65](https://etherscan.io/address/0xE17aeD2fC55f4A876315376ffA49FE6358113a65) Checks the signature of the DepositApprover for each deposit and, on succeeding, forwards the user's funds and bridging request to the L1SharedBridge contract to deposit to GRVT. - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist ##### Governance (0xe81d…a9d1) Addresses: [0xe81d64195072e4d09639b31Abb257d0096FEa9d1](https://etherscan.io/address/0xe81d64195072e4d09639b31Abb257d0096FEa9d1) - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist ##### L1AssetRouter Addresses: [0x8829AD80E425C646DAB305381ff105169FeEcE56](https://etherscan.io/address/0x8829AD80E425C646DAB305381ff105169FeEcE56) Canonical central asset router for all ZK stack chains. Routes deposits and withdrawals to the respective asset handlers (like the L1NativeTokenVault); does not escrow funds itself. - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#L1AssetRouter), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#L1AssetRouter), [Lens](https://l2beat.com/layer2s/projects/lens#L1AssetRouter), [Sophon](https://l2beat.com/layer2s/projects/sophon#L1AssetRouter), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#L1AssetRouter) ##### L1Nullifier Addresses: [0xD7f9f54194C633F36CCD5F3da84ad4a1c38cB2cB](https://etherscan.io/address/0xD7f9f54194C633F36CCD5F3da84ad4a1c38cB2cB) Contract responsible for bookkeeping L1 bridging transactions. Used to finalize withdrawals and reclaim failed deposits. Does not escrow funds. - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#L1Nullifier), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#L1Nullifier), [Lens](https://l2beat.com/layer2s/projects/lens#L1Nullifier), [Sophon](https://l2beat.com/layer2s/projects/sophon#L1Nullifier), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#L1Nullifier) ##### EOA 1 Addresses: [0x5c8de5821dd9263F124E8ddbff11C3368Ff86a37](https://etherscan.io/address/0x5c8de5821dd9263F124E8ddbff11C3368Ff86a37) - Can interact with GRVTBridgeProxy - approve deposits to GRVT via the GRVTBridgeProxy ##### EOA 2 Addresses: [0xF29bFff344c7ef0186432fE30C39fda0cca0550b](https://etherscan.io/address/0xF29bFff344c7ef0186432fE30C39fda0cca0550b) - Can interact with GRVTTransactionFilterer - address is part of the GRVTTransactionFilterer whitelist ### ZKsync Era #### Actors ##### ZkProtocolGovernor Addresses: [0x76705327e682F2d96943280D99464Ab61219e34f](https://explorer.zksync.io/address/0x76705327e682F2d96943280D99464Ab61219e34f) Main Governance contract allowing for token voting (simple majority) with the ZK token through delegates. This contract is used for protocol upgrade proposals (ZIPs) that start on ZKsync Era, go through Ethereum Layer 1 and can - from there - target all L1 and L2 contracts. At least 21M ZK tokens are necessary to start a proposal and a 630M quorum of voted tokens must be met to succeed. - Can interact with ProtocolUpgradeHandler - start (queue) upgrades [via: ProtocolTimelockController] - Can interact with ProtocolTimelockController - cancel queued transactions - execute transactions that are ready - manage all access control roles and change the minimum delay [via: ProtocolTimelockController] - propose transactions Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZkProtocolGovernor), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZkProtocolGovernor), [Lens](https://l2beat.com/layer2s/projects/lens#ZkProtocolGovernor), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZkProtocolGovernor), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZkProtocolGovernor) ##### ZkTokenGovernor Addresses: [0xb83FF6501214ddF40C91C9565d095400f3F45746](https://explorer.zksync.io/address/0xb83FF6501214ddF40C91C9565d095400f3F45746) Governance contract allowing for token voting (simple majority) with the ZK token through delegates. This contract is used for Token Program Proposals (TPPs) usually targeting the ZK token on ZKsync Era. At least 21M ZK tokens are necessary to start a proposal (for delegates) and a 630M quorum of voted tokens must be met to succeed. - Can interact with ZkToken - grant the MINTER_ROLE to arbitrary addresses, thus controlling the minting of the ZK token **with 3d delay** [via: ZkTokenTimelockController with 3d delay] - Can interact with ZkTokenTimelockController - manage all access control roles and change the minimum delay **with 6d delay** [via: ZkTokenTimelockController with 3d delay with 3d delay] - cancel queued transactions - execute transactions that are ready - propose transactions Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZkTokenGovernor), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZkTokenGovernor), [Lens](https://l2beat.com/layer2s/projects/lens#ZkTokenGovernor), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZkTokenGovernor), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZkTokenGovernor) ##### Guardians_l2Alias Addresses: [0x711ea620AB29f41AbC6596a15981e14ce58C97c9](https://explorer.zksync.io/address/0x711ea620AB29f41AbC6596a15981e14ce58C97c9) - Can interact with ZkTokenGovernor - cancel proposals while they are pending (after having been proposed) or active (during the voting period) Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#Guardians_l2Alias), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#Guardians_l2Alias), [Lens](https://l2beat.com/layer2s/projects/lens#Guardians_l2Alias), [Sophon](https://l2beat.com/layer2s/projects/sophon#Guardians_l2Alias), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#Guardians_l2Alias) ##### ZKFoundationMultisig_l2Alias Addresses: [0xcd2753Bd3829dfeC575AFC3816d4899CD103C62D](https://explorer.zksync.io/address/0xcd2753Bd3829dfeC575AFC3816d4899CD103C62D) - Can interact with ZkTokenGovernor - make direct proposals without owning ZK tokens. In propose-guarded mode, this address is the ONLY allowed proposer. Propose-guarded mode is currently set to false Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZKFoundationMultisig_l2Alias), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZKFoundationMultisig_l2Alias), [Lens](https://l2beat.com/layer2s/projects/lens#ZKFoundationMultisig_l2Alias), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZKFoundationMultisig_l2Alias), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZKFoundationMultisig_l2Alias) ##### ProtocolUpgradeHandler_l2Alias Addresses: [0xF41EcA3047B37dc7d88849de4a4dc07937Ad6bc4](https://explorer.zksync.io/address/0xF41EcA3047B37dc7d88849de4a4dc07937Ad6bc4) - Can upgrade **with no delay** - ZkToken [via: ZkTokenProxyAdmin] - Can interact with ZkToken - control all roles in the ZkToken access control, including the minter roles Used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ProtocolUpgradeHandler_l2Alias), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ProtocolUpgradeHandler_l2Alias), [Lens](https://l2beat.com/layer2s/projects/lens#ProtocolUpgradeHandler_l2Alias), [Sophon](https://l2beat.com/layer2s/projects/sophon#ProtocolUpgradeHandler_l2Alias), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ProtocolUpgradeHandler_l2Alias) ## Smart contracts ![A diagram of the smart contract architecture](https://l2beat.com/static/images/architecture/zkstack-validium.bd8394d7.png) Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/grvt ### Ethereum #### Diamond Addresses: [0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code), [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) (Implementation #1 (Upgradable)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) (Implementation #2 (Upgradable)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) (Implementation #3 (Upgradable)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) (Implementation #4 (Upgradable)) **Past upgrades** (Count of upgrades: 11, Last upgrade: 1mo 20d ago, Avg upgrade interval: 1mo 28d) - 2026-08-20 08:51 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x5de81926ab9765d4294a27405abf5bb82302196cce39c771c2005e9e7cb28611](https://etherscan.io/tx/0x5de81926ab9765d4294a27405abf5bb82302196cce39c771c2005e9e7cb28611), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-08-14 08:58 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xba32e7c45d24c1e62cab727c08d3c0134210ba73c27299751060f9810f77427e](https://etherscan.io/tx/0xba32e7c45d24c1e62cab727c08d3c0134210ba73c27299751060f9810f77427e), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-08-11 09:38 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xe93d3af0aeb00f811edd3077b734b5e76842842ea919aaeead2c19c4d0157a31](https://etherscan.io/tx/0xe93d3af0aeb00f811edd3077b734b5e76842842ea919aaeead2c19c4d0157a31), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-06-18 10:13 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xa5133fa49c851e0a36f14a62515213fb1268e877a6ba35f0978f8c4e369074e9](https://etherscan.io/tx/0xa5133fa49c851e0a36f14a62515213fb1268e877a6ba35f0978f8c4e369074e9), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2026-06-16 11:46 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xedafd71bf96d2993dff23fca5d6d2e1ace52468cc10eed9e68cf260529156b7b](https://etherscan.io/tx/0xedafd71bf96d2993dff23fca5d6d2e1ace52468cc10eed9e68cf260529156b7b), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2025-12-26 20:29 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x85dba00b8749a3bac358b1b3c0c62dc9b3eb7d00b5e0da81955fad460360395b](https://etherscan.io/tx/0x85dba00b8749a3bac358b1b3c0c62dc9b3eb7d00b5e0da81955fad460360395b), implementations: [0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253](https://etherscan.io/address/0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253#code) ([diff](https://disco.l2beat.com/diff/eth:0x431449e2a28A69122860A4956A3f7191eE15aFBC/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253)), [0x1666124221622eb6154306Ea9BA87043e8be88B2](https://etherscan.io/address/0x1666124221622eb6154306Ea9BA87043e8be88B2#code) ([diff](https://disco.l2beat.com/diff/eth:0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2)), [0x1e34aB39a9682149165ddeCc0583d238A5448B45](https://etherscan.io/address/0x1e34aB39a9682149165ddeCc0583d238A5448B45#code) ([diff](https://disco.l2beat.com/diff/eth:0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45)), [0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691](https://etherscan.io/address/0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691#code) ([diff](https://disco.l2beat.com/diff/eth:0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691)) - 2025-07-11 04:56 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x50482c232f408d2e39fcaf30df79e587c0859e2f36e476b9d4deda048e3f1a45](https://etherscan.io/tx/0x50482c232f408d2e39fcaf30df79e587c0859e2f36e476b9d4deda048e3f1a45), implementations: [0x431449e2a28A69122860A4956A3f7191eE15aFBC](https://etherscan.io/address/0x431449e2a28A69122860A4956A3f7191eE15aFBC#code) ([diff](https://disco.l2beat.com/diff/eth:0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4/eth:0x431449e2a28A69122860A4956A3f7191eE15aFBC)), [0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22](https://etherscan.io/address/0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22#code) ([diff](https://disco.l2beat.com/diff/eth:0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4/eth:0xae5cbB5f70e134668a13d7C8EcEF5e9E6FffCF22)), [0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec](https://etherscan.io/address/0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec#code) ([diff](https://disco.l2beat.com/diff/eth:0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f/eth:0x365D0ae3ECA13004daf2A4ba1501c01AaEbb4fec)), [0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A](https://etherscan.io/address/0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A#code) ([diff](https://disco.l2beat.com/diff/eth:0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490/eth:0x2f116b9033d88Bb3Cf64C371AE5458fbA22BA39A)) - 2025-05-19 07:17 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xf21daa11dac7aa6d48bcf8f8d76d8c43900db3022d183389a8e16858cabdd0cb](https://etherscan.io/tx/0xf21daa11dac7aa6d48bcf8f8d76d8c43900db3022d183389a8e16858cabdd0cb), implementations: [0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4](https://etherscan.io/address/0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4#code) ([diff](https://disco.l2beat.com/diff/eth:0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb/eth:0xF2C9D38D16c7A7Dc9aA4F743Fce024354d9c19B4)), [0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4](https://etherscan.io/address/0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4#code) ([diff](https://disco.l2beat.com/diff/eth:0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1/eth:0x05DeB01AaDB6C98F8B78a1F9A81ccd68Ac4d70d4)), [0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f](https://etherscan.io/address/0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f#code) ([diff](https://disco.l2beat.com/diff/eth:0x36b026c39125964D99596CE302866B5A59E4dE27/eth:0x26b9a55DaBab9A8e74815A9D6Cd7F74AC0d7215f)), [0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490](https://etherscan.io/address/0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490#code) ([diff](https://disco.l2beat.com/diff/eth:0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800/eth:0x0A7C1b8D56BE02d9731e3A764107602f8F6dd490)) - 2025-03-24 09:29 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0xd442b78fb0d2ccccea791f60de88cc4d7214fff454429c552be59c8778cbb9f3](https://etherscan.io/tx/0xd442b78fb0d2ccccea791f60de88cc4d7214fff454429c552be59c8778cbb9f3), implementations: [0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb](https://etherscan.io/address/0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb#code) ([diff](https://disco.l2beat.com/diff/eth:0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a/eth:0xEaedCF01c0B01C1a10b74cB0A2cDeF78a9540cdb)), [0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1](https://etherscan.io/address/0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1#code) ([diff](https://disco.l2beat.com/diff/eth:0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9/eth:0x95C45F931946C97D10D9d6e859Fe8D62785ed3C1)), [0x36b026c39125964D99596CE302866B5A59E4dE27](https://etherscan.io/address/0x36b026c39125964D99596CE302866B5A59E4dE27#code) ([diff](https://disco.l2beat.com/diff/eth:0x5575218cECd370E1d630d1AdB03c254B0B376821/eth:0x36b026c39125964D99596CE302866B5A59E4dE27)), [0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800](https://etherscan.io/address/0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800#code) ([diff](https://disco.l2beat.com/diff/eth:0xBB13642F795014E0EAC2b0d52ECD5162ECb66712/eth:0x53d0b421BB3e522632ABEB06BB2c4eB15eaD9800)) - 2025-01-28 05:38 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x733c89da487edb502dc65f5115ada9cef6b44128a85cf36adbde4821e13abe31](https://etherscan.io/tx/0x733c89da487edb502dc65f5115ada9cef6b44128a85cf36adbde4821e13abe31), implementations: [0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a](https://etherscan.io/address/0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a#code) ([diff](https://disco.l2beat.com/diff/eth:0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a/eth:0x90C0A0a63d7ff47BfAA1e9F8fa554dabc986504a)), [0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9](https://etherscan.io/address/0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9#code) ([diff](https://disco.l2beat.com/diff/eth:0xE60E94fCCb18a81D501a38959E532C0A85A1be89/eth:0x81754d2E48e3e553ba6Dfd193FC72B3A0c6076d9)), [0x5575218cECd370E1d630d1AdB03c254B0B376821](https://etherscan.io/address/0x5575218cECd370E1d630d1AdB03c254B0B376821#code) ([diff](https://disco.l2beat.com/diff/eth:0xCDB6228b616EEf8Df47D69A372C4f725C43e718C/eth:0x5575218cECd370E1d630d1AdB03c254B0B376821)), [0xBB13642F795014E0EAC2b0d52ECD5162ECb66712](https://etherscan.io/address/0xBB13642F795014E0EAC2b0d52ECD5162ECb66712#code) ([diff](https://disco.l2beat.com/diff/eth:0xaD193aDe635576d8e9f7ada71Af2137b16c64075/eth:0xBB13642F795014E0EAC2b0d52ECD5162ECb66712)) - 2024-11-12 02:51 UTC, upgrade of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d](https://etherscan.io/tx/0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d), implementations: [0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a](https://etherscan.io/address/0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a#code) ([diff](https://disco.l2beat.com/diff/eth:0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a/eth:0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a)), [0xE60E94fCCb18a81D501a38959E532C0A85A1be89](https://etherscan.io/address/0xE60E94fCCb18a81D501a38959E532C0A85A1be89#code) ([diff](https://disco.l2beat.com/diff/eth:0xE60E94fCCb18a81D501a38959E532C0A85A1be89/eth:0xE60E94fCCb18a81D501a38959E532C0A85A1be89)), [0xCDB6228b616EEf8Df47D69A372C4f725C43e718C](https://etherscan.io/address/0xCDB6228b616EEf8Df47D69A372C4f725C43e718C#code) ([diff](https://disco.l2beat.com/diff/eth:0xCDB6228b616EEf8Df47D69A372C4f725C43e718C/eth:0xCDB6228b616EEf8Df47D69A372C4f725C43e718C)), [0xaD193aDe635576d8e9f7ada71Af2137b16c64075](https://etherscan.io/address/0xaD193aDe635576d8e9f7ada71Af2137b16c64075#code) ([diff](https://disco.l2beat.com/diff/eth:0xaD193aDe635576d8e9f7ada71Af2137b16c64075/eth:0xaD193aDe635576d8e9f7ada71Af2137b16c64075)) - 2024-11-12 02:51 UTC, deployment of [Diamond](https://etherscan.io/address/0xe3e310cd8EE0C808794810AB50FE4BcCC5c7D89E#code): transaction [0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d](https://etherscan.io/tx/0x0bbe1288b6184a2f0e7b1205c695f28f5dad249904447e05a841fbfbab1af41d), implementations: [0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a](https://etherscan.io/address/0xF6F26b416CE7AE5e5FE224Be332C7aE4e1f3450a#code), [0xE60E94fCCb18a81D501a38959E532C0A85A1be89](https://etherscan.io/address/0xE60E94fCCb18a81D501a38959E532C0A85A1be89#code), [0xCDB6228b616EEf8Df47D69A372C4f725C43e718C](https://etherscan.io/address/0xCDB6228b616EEf8Df47D69A372C4f725C43e718C#code), [0xaD193aDe635576d8e9f7ada71Af2137b16c64075](https://etherscan.io/address/0xaD193aDe635576d8e9f7ada71Af2137b16c64075#code) The main contract defining the Layer 2. Operator actions like commiting blocks, providing ZK proofs and executing batches ultimately target this contract which then processes transactions. During batch execution it processes L1 --> L2 and L2 --> L1 transactions. - Roles: - **getAdmin**: GrvtZkEvmAdmin; ultimately GrvtChainAdminMultisig - **getTransactionFilterer**: GRVTTransactionFilterer - **validators**: ValidatorTimelock Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#Diamond), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#Diamond), [Lens](https://l2beat.com/layer2s/projects/lens#Diamond), [Sophon](https://l2beat.com/layer2s/projects/sophon#Diamond), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#Diamond) #### ValidiumL1DAValidator Addresses: [0x907b30407249949521Bf0c89A43558dae200146A](https://etherscan.io/address/0x907b30407249949521Bf0c89A43558dae200146A#code) Contract that 'verifies' the data availability for validiums. This implementation only checks the correct formatting and does not serve as a DA oracle. Can be used by ZK stack validiums as the L1 part of a DAValidator pair. Implementation used in: [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ValidiumL1DAValidator) #### BridgeHub Addresses: [0x303a465B659cBB0ab36eE643eA362c509EEb5213](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code), [0xc89423b4909080fB8F8A43dF5E1C27001e55C24B](https://etherscan.io/address/0xc89423b4909080fB8F8A43dF5E1C27001e55C24B#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: 6, Last upgrade: 11mo 29d ago, Avg upgrade interval: 4mo 2d) - 2025-10-15 09:09 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0xc89423b4909080fB8F8A43dF5E1C27001e55C24B](https://etherscan.io/address/0xc89423b4909080fB8F8A43dF5E1C27001e55C24B#code) ([diff](https://disco.l2beat.com/diff/eth:0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32/eth:0xc89423b4909080fB8F8A43dF5E1C27001e55C24B)) - 2025-06-19 14:26 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32](https://etherscan.io/address/0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32#code) ([diff](https://disco.l2beat.com/diff/eth:0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87/eth:0x08A98B1048Fb61E9Fff7d7d98305aC6286Ae9F32)) - 2025-04-28 12:33 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87](https://etherscan.io/address/0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87#code) ([diff](https://disco.l2beat.com/diff/eth:0xb720523EC3c615b069453bF4B0584CEbF034706f/eth:0xcdd748d4A80CE6831080f1dA2CA9084CDa87Cc87)) - 2025-03-31 08:00 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0xb720523EC3c615b069453bF4B0584CEbF034706f](https://etherscan.io/address/0xb720523EC3c615b069453bF4B0584CEbF034706f#code) ([diff](https://disco.l2beat.com/diff/eth:0x0029e562c0b54C0b88cB22adF4346DbfEC87400c/eth:0xb720523EC3c615b069453bF4B0584CEbF034706f)) - 2025-01-08 16:00 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5](https://etherscan.io/tx/0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5), implementations: [0x0029e562c0b54C0b88cB22adF4346DbfEC87400c](https://etherscan.io/address/0x0029e562c0b54C0b88cB22adF4346DbfEC87400c#code) ([diff](https://disco.l2beat.com/diff/eth:0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13/eth:0x0029e562c0b54C0b88cB22adF4346DbfEC87400c)) - 2024-09-09 13:09 UTC, upgrade of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0x21aec24a9df97ce4886d699314be627b0818da4d1987349421fb3df102c43f2b](https://etherscan.io/tx/0x21aec24a9df97ce4886d699314be627b0818da4d1987349421fb3df102c43f2b), implementations: [0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13](https://etherscan.io/address/0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13#code) ([diff](https://disco.l2beat.com/diff/eth:0x12f893689f9603991a8c22C249FFd0509Be95661/eth:0x509dA1BE24432F8804C4A9FF4a3c3f80284CDd13)) - 2024-06-04 17:03 UTC, deployment of [BridgeHub](https://etherscan.io/address/0x303a465B659cBB0ab36eE643eA362c509EEb5213#code): transaction [0xdbb03a14ea223de3db4ac0916e78123bd0a1dde68e98952326d8382d29ac4d61](https://etherscan.io/tx/0xdbb03a14ea223de3db4ac0916e78123bd0a1dde68e98952326d8382d29ac4d61), implementations: [0x12f893689f9603991a8c22C249FFd0509Be95661](https://etherscan.io/address/0x12f893689f9603991a8c22C249FFd0509Be95661#code) The main registry (hub) for all the contracts in the ZK stack cluster and central entrypoint for bridge transactions. Stores important mappings like from chainId to diamond address, from chainId to parent CTM, from chainId to base token etc. A clone of Bridgehub is also deployed on each L2 chain, but this clone is only used on settlement layers. - Roles: - **admin**: EraChainAdminProxy, ProxyAdmin; ultimately EmergencyUpgradeBoard, Matter Labs Multisig - **owner**: ProtocolUpgradeHandler; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#BridgeHub), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#BridgeHub), [Lens](https://l2beat.com/layer2s/projects/lens#BridgeHub), [Sophon](https://l2beat.com/layer2s/projects/sophon#BridgeHub), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#BridgeHub) #### MessageRoot Addresses: [0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code), [0x669ed5BB1377C917333e7d4223ce3419EE4099fD](https://etherscan.io/address/0x669ed5BB1377C917333e7d4223ce3419EE4099fD#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 11mo 29d ago, Avg upgrade interval: 6mo 22d) - 2025-10-15 09:09 UTC, upgrade of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x669ed5BB1377C917333e7d4223ce3419EE4099fD](https://etherscan.io/address/0x669ed5BB1377C917333e7d4223ce3419EE4099fD#code) ([diff](https://disco.l2beat.com/diff/eth:0x382fb241396eA915108e7B7Ce1adE1322bA73aeE/eth:0x669ed5BB1377C917333e7d4223ce3419EE4099fD)) - 2025-06-19 14:26 UTC, upgrade of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x382fb241396eA915108e7B7Ce1adE1322bA73aeE](https://etherscan.io/address/0x382fb241396eA915108e7B7Ce1adE1322bA73aeE#code) ([diff](https://disco.l2beat.com/diff/eth:0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad/eth:0x382fb241396eA915108e7B7Ce1adE1322bA73aeE)) - 2025-02-09 13:50 UTC, deployment of [MessageRoot](https://etherscan.io/address/0x5Ce9257755391D1509cD4eC1899d3F88A57BB4aD#code): transaction [0xc47e24e8cc6c7a493bbb1a46b74f1ff113fad2e35d7596aa688df5bf0402fc65](https://etherscan.io/tx/0xc47e24e8cc6c7a493bbb1a46b74f1ff113fad2e35d7596aa688df5bf0402fc65), implementations: [0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad](https://etherscan.io/address/0x19347Fb8eD3E8e35eb4a01c8B18Bd330194Cf0ad#code) Aggregates remote bridge message roots from all ZK stack chains. To be used with the Gateway when deployed. - Roles: - **admin**: ProxyAdmin; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#MessageRoot), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#MessageRoot), [Lens](https://l2beat.com/layer2s/projects/lens#MessageRoot), [Sophon](https://l2beat.com/layer2s/projects/sophon#MessageRoot), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#MessageRoot) #### CTMDeploymentTracker Addresses: [0x6078F6B379f103de1Aa912dc46bb8Df0c8809860](https://etherscan.io/address/0x6078F6B379f103de1Aa912dc46bb8Df0c8809860#code), [0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991](https://etherscan.io/address/0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 11mo 29d ago, Avg upgrade interval: 10mo 3d) - 2025-10-15 09:09 UTC, upgrade of [CTMDeploymentTracker](https://etherscan.io/address/0x6078F6B379f103de1Aa912dc46bb8Df0c8809860#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991](https://etherscan.io/address/0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991#code) ([diff](https://disco.l2beat.com/diff/eth:0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1/eth:0x00e9d8A4b35C32880A10Feb391aDEDA0D3F90991)) - 2025-02-09 13:53 UTC, deployment of [CTMDeploymentTracker](https://etherscan.io/address/0x6078F6B379f103de1Aa912dc46bb8Df0c8809860#code): transaction [0x8b5a21b3473a638022e84097a99c4668bb0a454686b737e87957729c4822741b](https://etherscan.io/tx/0x8b5a21b3473a638022e84097a99c4668bb0a454686b737e87957729c4822741b), implementations: [0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1](https://etherscan.io/address/0x1E405E5cdF127Dc98Eb490AB0e97345f892Ff7E1#code) Asset deployment tracker where the 'asset' is a ChainTypeManager. The registering of asset IDs for ChainTypeManagers is necessary to be able to migrate them to a given settlement layer, for example the Gateway. - Roles: - **admin**: ProxyAdmin; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#CTMDeploymentTracker), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#CTMDeploymentTracker), [Lens](https://l2beat.com/layer2s/projects/lens#CTMDeploymentTracker), [Sophon](https://l2beat.com/layer2s/projects/sophon#CTMDeploymentTracker), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#CTMDeploymentTracker) #### RollupL1DAValidator Addresses: [0x72213dfe8CA61B0A782970dCFebFb877778f9119](https://etherscan.io/address/0x72213dfe8CA61B0A782970dCFebFb877778f9119#code) Contract that verifies the data availability of ethereum calldata and blobs. Can be used by ZK stack rollups as the L1 part of a DAValidator pair. Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#RollupL1DAValidator), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#RollupL1DAValidator), [Lens](https://l2beat.com/layer2s/projects/lens#RollupL1DAValidator), [Sophon](https://l2beat.com/layer2s/projects/sophon#RollupL1DAValidator), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#RollupL1DAValidator) #### ChainTypeManager Addresses: [0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code), [0x4aB7204e4205c96C32E23ADa9191720976dC084f](https://etherscan.io/address/0x4aB7204e4205c96C32E23ADa9191720976dC084f#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: 6, Last upgrade: 11mo 29d ago, Avg upgrade interval: 4mo 2d) - 2025-10-15 09:09 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x4aB7204e4205c96C32E23ADa9191720976dC084f](https://etherscan.io/address/0x4aB7204e4205c96C32E23ADa9191720976dC084f#code) ([diff](https://disco.l2beat.com/diff/eth:0x345314c7E4af84B763d98d23f772622E23AfB5CE/eth:0x4aB7204e4205c96C32E23ADa9191720976dC084f)) - 2025-06-19 14:26 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0x345314c7E4af84B763d98d23f772622E23AfB5CE](https://etherscan.io/address/0x345314c7E4af84B763d98d23f772622E23AfB5CE#code) ([diff](https://disco.l2beat.com/diff/eth:0x6D598c77AF57Bfa17201483400615c61819dD45A/eth:0x345314c7E4af84B763d98d23f772622E23AfB5CE)) - 2025-04-28 12:33 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0x6D598c77AF57Bfa17201483400615c61819dD45A](https://etherscan.io/address/0x6D598c77AF57Bfa17201483400615c61819dD45A#code) ([diff](https://disco.l2beat.com/diff/eth:0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb/eth:0x6D598c77AF57Bfa17201483400615c61819dD45A)) - 2025-03-31 08:00 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb](https://etherscan.io/address/0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb#code) ([diff](https://disco.l2beat.com/diff/eth:0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75/eth:0xA3bCcAEe38cb0273A979118a0DE483E47D50F6Cb)) - 2025-01-08 16:00 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5](https://etherscan.io/tx/0xc90d135e4b8ab58304853f3be34b2fefd18c2a817d3d250e7b669e024d5277c5), implementations: [0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75](https://etherscan.io/address/0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75#code) ([diff](https://disco.l2beat.com/diff/eth:0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274/eth:0xb39B175a5E0945F2FB6A7F31764c0e31D9cF5b75)) - 2024-08-06 08:56 UTC, upgrade of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0xc1e73b06359759201b76ab7654e0bd49011f33c0230dfc24423985fbf36ea817](https://etherscan.io/tx/0xc1e73b06359759201b76ab7654e0bd49011f33c0230dfc24423985fbf36ea817), implementations: [0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274](https://etherscan.io/address/0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274#code) ([diff](https://disco.l2beat.com/diff/eth:0x8279B7E48fA074f966385d87AEf29Bd031e54fD5/eth:0xed1Dc7F0Be2B19cb02a2476150C8ea24A37c5274)) - 2024-06-04 17:04 UTC, deployment of [ChainTypeManager](https://etherscan.io/address/0xc2eE6b6af7d616f6e27ce7F4A451Aedc2b0F5f5C#code): transaction [0x514bbf46d227eee8567825bf5c8ee1855aa8a1916f7fee7b191e2e3d5ecba849](https://etherscan.io/tx/0x514bbf46d227eee8567825bf5c8ee1855aa8a1916f7fee7b191e2e3d5ecba849), implementations: [0x8279B7E48fA074f966385d87AEf29Bd031e54fD5](https://etherscan.io/address/0x8279B7E48fA074f966385d87AEf29Bd031e54fD5#code) Defines L2 diamond contract versions, creation and upgrade data and the proof system for all ZK stack chains connected to it. ZK chains are children of this central contract and can only upgrade to versions that were previously registered here. The current protocol version is 0,30,1. - Roles: - **admin**: EraChainAdminProxy, ProxyAdmin; ultimately EmergencyUpgradeBoard, Matter Labs Multisig - **owner**: ProtocolUpgradeHandler; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ChainTypeManager), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ChainTypeManager), [Lens](https://l2beat.com/layer2s/projects/lens#ChainTypeManager), [Sophon](https://l2beat.com/layer2s/projects/sophon#ChainTypeManager), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ChainTypeManager) #### ProtocolUpgradeHandler Addresses: [0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code), [0x36625Bd3dDB469377C6e9893712158cA3c0cC14B](https://etherscan.io/address/0x36625Bd3dDB469377C6e9893712158cA3c0cC14B#code) (Implementation (Upgradable)), [0x1e4c534e7ce1FF5621Ea506D99b367D7d8EFbE3e](https://etherscan.io/address/0x1e4c534e7ce1FF5621Ea506D99b367D7d8EFbE3e#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 11mo 29d ago, Avg upgrade interval: 6mo 23d) - 2025-10-15 09:11 UTC, upgrade of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0x2309df20dd1cb3f3a3289e97517d10d399989292f966578240ec387246a13e61](https://etherscan.io/tx/0x2309df20dd1cb3f3a3289e97517d10d399989292f966578240ec387246a13e61), implementations: [0x36625Bd3dDB469377C6e9893712158cA3c0cC14B](https://etherscan.io/address/0x36625Bd3dDB469377C6e9893712158cA3c0cC14B#code) ([diff](https://disco.l2beat.com/diff/eth:0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A/eth:0x36625Bd3dDB469377C6e9893712158cA3c0cC14B)) - 2025-03-31 08:00 UTC, upgrade of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3](https://etherscan.io/tx/0x96a2f14c85022136ab3d4e568e9f1fe8f4611a4a2597f979332840259378f6b3), implementations: [0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A](https://etherscan.io/address/0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A#code) ([diff](https://disco.l2beat.com/diff/eth:0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604/eth:0x0A67f0Fd2f7523057039F14969Fe23a5f620f19A)) - 2025-02-06 15:32 UTC, deployment of [ProtocolUpgradeHandler](https://etherscan.io/address/0xE30Dca3047B37dc7d88849dE4A4Dc07937ad5Ab3#code): transaction [0xa3d1fa107e6dc4ce67d92a5af74aa7dc34602c2a1d46727790819c1f974bed95](https://etherscan.io/tx/0xa3d1fa107e6dc4ce67d92a5af74aa7dc34602c2a1d46727790819c1f974bed95), implementations: [0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604](https://etherscan.io/address/0xD5e9D3d483a93d03D8d604CC79dC9f2F4B78C604#code) The central upgrade contract and Governance proxy for all ZK stack contracts. Accepts successful DAO proposals from L2 and emergency proposals from the EmergencyUpgradeBoard. The three members of the EmergencyUpgradeBoard also have special roles and permissions in this contract. - Roles: - **admin**: ProxyAdmin; ultimately EmergencyUpgradeBoard - **emergencyUpgradeBoard**: EmergencyUpgradeBoard - **guardians**: Guardians - **l2_protocol_governor**: ProtocolTimelockController; ultimately ZkProtocolGovernor - **securityCouncil**: SecurityCouncil Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ProtocolUpgradeHandler), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ProtocolUpgradeHandler), [Lens](https://l2beat.com/layer2s/projects/lens#ProtocolUpgradeHandler), [Sophon](https://l2beat.com/layer2s/projects/sophon#ProtocolUpgradeHandler), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ProtocolUpgradeHandler) #### RollupDAManager Addresses: [0xE689e79a06D3D09f99C21E534cCF6a8b7C9b3C45](https://etherscan.io/address/0xE689e79a06D3D09f99C21E534cCF6a8b7C9b3C45#code) Simple registry for allowed DA address pairs for the 'rollup' data availability mode (can be permanently enforced with isPermanentRollup=true). Rollup DA address pairs (especially the L1 part) usually point to contracts that validate if data was made available on Ethereum. - Roles: - **owner**: ProtocolUpgradeHandler; ultimately EmergencyUpgradeBoard Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#RollupDAManager), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#RollupDAManager), [Lens](https://l2beat.com/layer2s/projects/lens#RollupDAManager), [Sophon](https://l2beat.com/layer2s/projects/sophon#RollupDAManager), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#RollupDAManager) #### GrvtZkEvmAdmin Addresses: [0x6308ee1Ebdb8D5E60bB88D3EA3b56CE326193e7D](https://etherscan.io/address/0x6308ee1Ebdb8D5E60bB88D3EA3b56CE326193e7D#code) A governance proxy that lets GrvtChainAdminMultisig act through it. - Roles: - **owner**: GrvtChainAdminMultisig - **tokenMultiplierSetter**: GrvtChainAdminMultisig #### EraChainAdminProxy Addresses: [0x2cf3bD6a9056b39999F3883955E183F655345063](https://etherscan.io/address/0x2cf3bD6a9056b39999F3883955E183F655345063#code) A governance proxy that lets Matter Labs Multisig act through it. - Roles: - **owner**: Matter Labs Multisig Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#EraChainAdminProxy), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#EraChainAdminProxy), [Lens](https://l2beat.com/layer2s/projects/lens#EraChainAdminProxy), [Sophon](https://l2beat.com/layer2s/projects/sophon#EraChainAdminProxy), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#EraChainAdminProxy) #### EraVerifierPlonk Addresses: [0x0DAAB2B7b38ab48712996E760152c569FA356DbF](https://etherscan.io/address/0x0DAAB2B7b38ab48712996E760152c569FA356DbF#code) Verifies a zk-SNARK proof using an implementation of the PlonK proof system. Implementation used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#EraVerifierPlonk), [Abstract](https://l2beat.com/layer2s/projects/abstract#EraVerifierPlonk), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#EraVerifierPlonk), [Sophon](https://l2beat.com/layer2s/projects/sophon#EraVerifierPlonk), [Lens](https://l2beat.com/layer2s/projects/lens#EraVerifierPlonk) #### EraVerifierFflonk Addresses: [0x8470d6B3fd71B5fE3906B4ea04498d18F721eDe9](https://etherscan.io/address/0x8470d6B3fd71B5fE3906B4ea04498d18F721eDe9#code) Verifies a zk-SNARK proof using an implementation of the fflonk proof system. Implementation used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#EraVerifierFflonk), [Abstract](https://l2beat.com/layer2s/projects/abstract#EraVerifierFflonk), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#EraVerifierFflonk), [Sophon](https://l2beat.com/layer2s/projects/sophon#EraVerifierFflonk), [Lens](https://l2beat.com/layer2s/projects/lens#EraVerifierFflonk) #### EraDualVerifier Addresses: [0xCeF0218c0C6dB0768e48debeE26E41B8DAdE7081](https://etherscan.io/address/0xCeF0218c0C6dB0768e48debeE26E41B8DAdE7081#code) A router contract for verifiers. Routes verification requests to EraVerifierFflonk or EraVerifierPlonk depending on the supplied proof type. Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#EraDualVerifier), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#EraDualVerifier), [Lens](https://l2beat.com/layer2s/projects/lens#EraDualVerifier), [Sophon](https://l2beat.com/layer2s/projects/sophon#EraDualVerifier), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#EraDualVerifier) #### ProxyAdmin (0x1e4c…bE3e, 2 instances) Addresses: [0x1e4c534e7ce1FF5621Ea506D99b367D7d8EFbE3e](https://etherscan.io/address/0x1e4c534e7ce1FF5621Ea506D99b367D7d8EFbE3e#code), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) - Roles: - **owner**: ProtocolUpgradeHandler Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ProxyAdmin), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ProxyAdmin), [Lens](https://l2beat.com/layer2s/projects/lens#ProxyAdmin), [Sophon](https://l2beat.com/layer2s/projects/sophon#ProxyAdmin), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ProxyAdmin) #### ProxyAdmin (0x257F…D29B) Addresses: [0x257FC0c3EB02F7ba8C0fd3eD57692A9c1ee6D29B](https://etherscan.io/address/0x257FC0c3EB02F7ba8C0fd3eD57692A9c1ee6D29B#code) - Roles: - **owner**: EraChainAdminProxy Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ProxyAdmin), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ProxyAdmin), [Lens](https://l2beat.com/layer2s/projects/lens#ProxyAdmin), [Sophon](https://l2beat.com/layer2s/projects/sophon#ProxyAdmin), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ProxyAdmin) #### L1NativeTokenVault Addresses: [0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code), [0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083](https://etherscan.io/address/0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: 3, Last upgrade: 11mo 29d ago, Avg upgrade interval: 5mo 1d) - 2025-10-15 09:09 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83](https://etherscan.io/tx/0xa022a2ce09b145eb5d0c4342b3f3583e79b66ee7205ab986322be819f277ba83), implementations: [0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083](https://etherscan.io/address/0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083#code) ([diff](https://disco.l2beat.com/diff/eth:0xBa05B8B761386289Ba413a74AF1933d6a76E1b52/eth:0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083)) - 2025-06-19 14:26 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb](https://etherscan.io/tx/0x56b626590d1042673f7cf09f480533e8084d3e6141dc079fba657b1cc2ec17eb), implementations: [0xBa05B8B761386289Ba413a74AF1933d6a76E1b52](https://etherscan.io/address/0xBa05B8B761386289Ba413a74AF1933d6a76E1b52#code) ([diff](https://disco.l2beat.com/diff/eth:0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947/eth:0xBa05B8B761386289Ba413a74AF1933d6a76E1b52)) - 2025-04-28 12:33 UTC, upgrade of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132](https://etherscan.io/tx/0x1fbaad1ac4bffb295da999881a37c1a52751ccad9b1533c0d2400fdca3631132), implementations: [0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947](https://etherscan.io/address/0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947#code) ([diff](https://disco.l2beat.com/diff/eth:0x40B1060a114380f40faC6869c5B383f47e61530c/eth:0xDf3a3E51aEABB5da548F854B608E3C9De1ae2947)) - 2025-02-09 13:52 UTC, deployment of [L1NativeTokenVault](https://etherscan.io/address/0xbeD1EB542f9a5aA6419Ff3deb921A372681111f6#code): transaction [0x50619c1506e8e93cc28017847b5690b6a0784bc2b08c1dbb8555b71525b72351](https://etherscan.io/tx/0x50619c1506e8e93cc28017847b5690b6a0784bc2b08c1dbb8555b71525b72351), implementations: [0x40B1060a114380f40faC6869c5B383f47e61530c](https://etherscan.io/address/0x40B1060a114380f40faC6869c5B383f47e61530c#code) Canonical central asset escrow for all ZK stack chains. - Roles: - **admin**: ProxyAdmin; ultimately EmergencyUpgradeBoard - **owner**: ProtocolUpgradeHandler; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#L1NativeTokenVault), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#L1NativeTokenVault), [Lens](https://l2beat.com/layer2s/projects/lens#L1NativeTokenVault), [Sophon](https://l2beat.com/layer2s/projects/sophon#L1NativeTokenVault), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#L1NativeTokenVault) #### ChainAssetHandler Addresses: [0xDd5CB8B9037357B4cD37391A073798f8aaB61076](https://etherscan.io/address/0xDd5CB8B9037357B4cD37391A073798f8aaB61076#code), [0xaa180C70126f751C164465638770B865965A744B](https://etherscan.io/address/0xaa180C70126f751C164465638770B865965A744B#code) (Implementation (Upgradable)), [0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1](https://etherscan.io/address/0xC2a36181fB524a6bEfE639aFEd37A67e77d62cf1#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2025-09-19 12:53 UTC, deployment of [ChainAssetHandler](https://etherscan.io/address/0xDd5CB8B9037357B4cD37391A073798f8aaB61076#code): transaction [0x960c2e5bb98f4b9a07087b3b50fdc4681bbea1467aab3748dbb0050311f54ede](https://etherscan.io/tx/0x960c2e5bb98f4b9a07087b3b50fdc4681bbea1467aab3748dbb0050311f54ede), implementations: [0xaa180C70126f751C164465638770B865965A744B](https://etherscan.io/address/0xaa180C70126f751C164465638770B865965A744B#code) Specialized contract for managing chain assets, i.e. chain migrations. - Roles: - **admin**: ProxyAdmin; ultimately EmergencyUpgradeBoard - **owner**: ProtocolUpgradeHandler; ultimately EmergencyUpgradeBoard Can be upgraded by: EmergencyUpgradeBoard with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ChainAssetHandler), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ChainAssetHandler), [Lens](https://l2beat.com/layer2s/projects/lens#ChainAssetHandler), [Sophon](https://l2beat.com/layer2s/projects/sophon#ChainAssetHandler), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ChainAssetHandler) #### ServerNotifier Addresses: [0xfca808A744735D9919EEBe4660B8Fd897456Ce31](https://etherscan.io/address/0xfca808A744735D9919EEBe4660B8Fd897456Ce31#code), [0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A](https://etherscan.io/address/0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A#code) (Implementation (Upgradable)), [0x257FC0c3EB02F7ba8C0fd3eD57692A9c1ee6D29B](https://etherscan.io/address/0x257FC0c3EB02F7ba8C0fd3eD57692A9c1ee6D29B#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 2mo 19d ago, Avg upgrade interval: 8mo 17d) - 2026-07-22 10:09 UTC, upgrade of [ServerNotifier](https://etherscan.io/address/0xfca808A744735D9919EEBe4660B8Fd897456Ce31#code): transaction [0xdbd5285f559e4ae32457b8425f67e1dfe76575c40999499e0b55d5cf985b85d8](https://etherscan.io/tx/0xdbd5285f559e4ae32457b8425f67e1dfe76575c40999499e0b55d5cf985b85d8), implementations: [0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A](https://etherscan.io/address/0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A#code) ([diff](https://disco.l2beat.com/diff/eth:0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A/eth:0x260813B0DAf35dda95c41F39c6Cc3F24dc87028A)) - 2025-05-14 05:09 UTC, deployment of [ServerNotifier](https://etherscan.io/address/0xfca808A744735D9919EEBe4660B8Fd897456Ce31#code): transaction [0xbeb7447fc88b154a4730b01cb1a75b7093095056e88818c3659253111d06e66f](https://etherscan.io/tx/0xbeb7447fc88b154a4730b01cb1a75b7093095056e88818c3659253111d06e66f), implementations: [0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A](https://etherscan.io/address/0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A#code) A simple contract that can be called by the ChainAdmin to emit notifications about chain migrations. - Roles: - **admin**: ProxyAdmin; ultimately Matter Labs Multisig Can be upgraded by: Matter Labs Multisig with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ServerNotifier), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ServerNotifier), [Lens](https://l2beat.com/layer2s/projects/lens#ServerNotifier), [Sophon](https://l2beat.com/layer2s/projects/sophon#ServerNotifier), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ServerNotifier) ### ZKsync Era #### ProtocolTimelockController Addresses: [0x085b8B6407f150D62adB1EF926F7f304600ec714](https://explorer.zksync.io/address/0x085b8B6407f150D62adB1EF926F7f304600ec714#code) Timelock contract allowing the queueing of transactions with a minimum delay of 0s. - Roles: - **canceller**: ZkProtocolGovernor - **executor**: ZkProtocolGovernor - **proposer**: ZkProtocolGovernor - **timelockAdmin**: ProtocolTimelockController; ultimately ZkProtocolGovernor Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ProtocolTimelockController), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ProtocolTimelockController), [Lens](https://l2beat.com/layer2s/projects/lens#ProtocolTimelockController), [Sophon](https://l2beat.com/layer2s/projects/sophon#ProtocolTimelockController), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ProtocolTimelockController) #### ZkToken Addresses: [0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code), [0x4fcd824D304e9b1584CdBb582c104BDcbFb11274](https://explorer.zksync.io/address/0x4fcd824D304e9b1584CdBb582c104BDcbFb11274#code) (Implementation (Upgradable)), [0xdB1E46B448e68a5E35CB693a99D59f784aD115CC](https://explorer.zksync.io/address/0xdB1E46B448e68a5E35CB693a99D59f784aD115CC#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 10mo 5d ago, Avg upgrade interval: 9mo 20d) - 2025-12-08 12:06 UTC, upgrade of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0x749b9e6eed328052d679eb86639be807b4acf811ac8786f730b45258ba41ce6f](https://explorer.zksync.io/tx/0x749b9e6eed328052d679eb86639be807b4acf811ac8786f730b45258ba41ce6f), implementations: [0x4fcd824D304e9b1584CdBb582c104BDcbFb11274](https://explorer.zksync.io/address/0x4fcd824D304e9b1584CdBb582c104BDcbFb11274#code) ([diff](https://disco.l2beat.com/diff/zksync:0x01a6715d3560241E09E865a46122bf347A576c09/zksync:0x4fcd824D304e9b1584CdBb582c104BDcbFb11274)) - 2024-06-10 09:25 UTC, upgrade of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0xa6bc022ba0f60ac6f10a6efb84b261e9ca1b327a611bdd7a1f4d37cc9b027a3c](https://explorer.zksync.io/tx/0xa6bc022ba0f60ac6f10a6efb84b261e9ca1b327a611bdd7a1f4d37cc9b027a3c), implementations: [0x01a6715d3560241E09E865a46122bf347A576c09](https://explorer.zksync.io/address/0x01a6715d3560241E09E865a46122bf347A576c09#code) ([diff](https://disco.l2beat.com/diff/zksync:0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14/zksync:0x01a6715d3560241E09E865a46122bf347A576c09)) - 2024-05-21 18:48 UTC, deployment of [ZkToken](https://explorer.zksync.io/address/0x5A7d6b2F92C77FAD6CCaBd7EE0624E64907Eaf3E#code): transaction [0x5bfce59c2ad18019ef20d58a3f1ec496cdc85537fc9564c932f7dcbbb2a15b56](https://explorer.zksync.io/tx/0x5bfce59c2ad18019ef20d58a3f1ec496cdc85537fc9564c932f7dcbbb2a15b56), implementations: [0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14](https://explorer.zksync.io/address/0x3931e73ebA79a7C898D3b0e02c7C62bA4F11cB14#code) The ZK token contract on ZKsync Era. Mintable through access control roles. Used for voting in the ZK stack governance system. - Roles: - **admin**: ZkTokenProxyAdmin; ultimately ProtocolUpgradeHandler_l2Alias - **defaultAdmin**: ProtocolUpgradeHandler_l2Alias - **minterAdmin**: ZkTokenTimelockController; ultimately ZkTokenGovernor Can be upgraded by: ProtocolUpgradeHandler_l2Alias with no delay Proxy used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZkToken), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZkToken), [Lens](https://l2beat.com/layer2s/projects/lens#ZkToken), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZkToken), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZkToken) #### ZkTokenProxyAdmin Addresses: [0xdB1E46B448e68a5E35CB693a99D59f784aD115CC](https://explorer.zksync.io/address/0xdB1E46B448e68a5E35CB693a99D59f784aD115CC#code) - Roles: - **owner**: ProtocolUpgradeHandler_l2Alias Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZkTokenProxyAdmin), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZkTokenProxyAdmin), [Lens](https://l2beat.com/layer2s/projects/lens#ZkTokenProxyAdmin), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZkTokenProxyAdmin), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZkTokenProxyAdmin) #### ZkTokenTimelockController Addresses: [0xe5d21A9179CA2E1F0F327d598D464CcF60d89c3d](https://explorer.zksync.io/address/0xe5d21A9179CA2E1F0F327d598D464CcF60d89c3d#code) Timelock contract allowing the queueing of transactions with a minimum delay of 3d. - Roles: - **canceller**: ZkTokenGovernor - **executor**: ZkTokenGovernor - **proposer**: ZkTokenGovernor - **timelockAdmin**: ZkTokenTimelockController; ultimately ZkTokenGovernor Implementation used in: [Abstract](https://l2beat.com/layer2s/projects/abstract#ZkTokenTimelockController), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm#ZkTokenTimelockController), [Lens](https://l2beat.com/layer2s/projects/lens#ZkTokenTimelockController), [Sophon](https://l2beat.com/layer2s/projects/sophon#ZkTokenTimelockController), [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era#ZkTokenTimelockController) The current deployment carries some associated risks: - Funds can be stolen if a contract receives a malicious code upgrade. There is a 4d 3h - 8d 3h delay on code upgrades unless upgrade is initiated by the EmergencyUpgradeBoard in which case there is no delay. ### Program Hashes #### Boojum L2 Bootloader program v0.29.2 EraVM program that proves the correct execution of a batch of ZK Stack L2 blocks. - Hash: `0x01000911c4db4fe62c98e180cfa7e9b3a22fb15f505905d4bf36192f481551e6` - Repository: https://github.com/matter-labs/era-contracts/blob/v0.29.2/system-contracts/bootloader/bootloader.yul - Verification: successful - Used in: [ZKsync Era](https://l2beat.com/layer2s/projects/zksync-era), [Abstract](https://l2beat.com/layer2s/projects/abstract), [Cronos zkEVM](https://l2beat.com/layer2s/projects/cronoszkevm), [Sophon](https://l2beat.com/layer2s/projects/sophon), [Lens](https://l2beat.com/layer2s/projects/lens), [GRVT](https://l2beat.com/layer2s/projects/grvt), [ZERO Network](https://l2beat.com/layer2s/projects/zeronetwork), [zkCandy](https://l2beat.com/layer2s/projects/zkcandy) ##### Verification steps Prepare: 1. Install npm and yarn: `npm install --global yarn` 2. Install hardhat: `npm install -g hardhat` 3. Install foundry-zksync: `curl -L https://raw.githubusercontent.com/matter-labs/foundry-zksync/main/install-foundry-zksync | bash` from [here](https://foundry-book.zksync.io/introduction/installation/). Verify: 1. Checkout the correct branch in [era-contracts](https://github.com/matter-labs/era-contracts) repo: `git checkout v0.29.2`. Commit hash should be `dbfc9b5a40d68007dc405a9b669230104c1646e4`. 2. Execute recompute_hashes.sh script: `chmod +x recompute_hashes.sh` and `./recompute_hashes.sh`. Note that the script may require a specific version of `foundryup-zksync` and it will suggest the command to install it. However you might need to manually clear git working tree in the repo foundry-zksync (probably in ~/.foundry/matter-labs/foundry-zksync) to change versions.