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SummaryValue SecuredActivityOnchain costsLivenessMilestones & IncidentsRisk summaryRisk analysisStageData availabilityState validationUpgrades & GovernanceUpdatesOperatorWithdrawalsPermissionsSmart contracts

ADI Chain logo
ADI Chain

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About

ADI Chain is a zk rollup built for scale and policy alignment.

  • Total Value SecuredTVS
    $2.31 M1.47%
  • Past day UOPSDaily UOPS
    0.0317.9%
  • Stage
  • Gas token
    ADI
  • Type
    ZK Rollup
  • Purpose
    Universal
  • Chain ID
    36900

    • Tokens breakdown

    Sequencer failureState validationData availabilityExit windowProposer failure
    Explore more in Discovery UI

    Badges

    About

    ADI Chain is a zk rollup built for scale and policy alignment.

    Value SecuredView TVS breakdown
    Total
    Canonically BridgedCanonically Bridged ValueCanonical
    Natively MintedNatively Minted TokensNative
    Externally BridgedExternally Bridged ValueExternal
    ETH & derivatives
    Stablecoins
    BTC & derivatives
    Other
    View TVS breakdown
    Activity

    2025 Nov 25 — 2026 May 26

    Past Day UOPS
    0.0317.9%
    Past Day Ops count
    2.66 K
    Max. UOPS
    0.10
    2026 May 18
    Past day UOPS/TPS Ratio
    1.00
    Onchain costs

    The section shows the operating costs that L2s pay to Ethereum.

    2025 Nov 25 — 2026 May 26

    Total cost
    $13.80 K
    Avg cost per L2 UOP
    $0.271329
    Avg cost per day
    $75.85
    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
    Avg. proof subs. interval
    Avg. state updates interval
    Past 30 days anomalies
    100% normal uptime

    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 4d 1h 8m (from 2026 Apr 04, 11:42 UTC until 2026 Apr 08, 12:50 UTC). These typically occur every 58min 54s on average.

    No Proof submissions were performed for 4d 1h 8m (from 2026 Apr 04, 11:41 UTC until 2026 Apr 08, 12:49 UTC). These typically occur every 58min 59s on average.

    No State updates were performed for 3d 3h 40m (from 2026 Mar 28, 17:46 UTC until 2026 Mar 31, 21:27 UTC). These typically occur every 58min 54s on average.

    No Proof submissions were performed for 3d 3h 40m (from 2026 Mar 28, 17:46 UTC until 2026 Mar 31, 21:26 UTC). These typically occur every 58min 59s on average.

    Milestones & Incidents

    ADI chain mainnet launch

    2025 Dec 9th

    ADI mainnet is live as a ZK stack L2 secured by the Airbender prover.

    Learn more
    Risk summary

    Funds can be stolen if

    1. a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL).

    Funds can be lost if

    1. the proof system is implemented incorrectly.

    Users can be censored if

    1. the operator refuses to include their transactions,
    2. the operator implements a TransactionFilterer, which is possible without delay.

    MEV can be extracted if

    1. the operator exploits their centralized position and frontruns user transactions.
    Risk analysis
    Sequencer failureState validationData availabilityExit windowProposer failure
    Sequencer failure
    Enqueue via L1

    Users can submit transactions to an L1 queue, but can’t force them. The sequencers cannot selectively skip transactions but can stop processing the queue entirely. In other words, if the sequencers censor or are down, they are so for everyone.

    State validation
    Validity proofs (ST, SN)

    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
    Onchain (SD)

    All of the data (SD = state diffs) needed for proof construction is published onchain.

    Exit window
    None
    The central operator can 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
    Cannot withdraw

    Only the whitelisted proposers can publish state roots on L1, so in the event of failure the withdrawals are frozen.

    Stage
    ADI Chain
    ADI Chain is a
    Stage 0
    ZK Rollup.
    The requirement for available node software is under review
    Learn more about Stages
    Please keep in mind that these stages do not reflect project security, this is an opinionated assessment of project maturity based on subjective criteria, created with a goal of incentivizing projects to push toward better decentralization. Each team may have taken different paths to achieve this goal.
    Data availability

    All data required for proofs is published on chain

    All the data that is used to construct the system state is published on chain in the form of cheap blobs or calldata. This ensures that it will be available for enough time.

    Learn more about the DA layer here: Ethereum logoEthereum
    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

    MatterLabs proof system Airbender can be found here and contains essential tools like the Prover, the Verifier, and other backend components. The docs about the system can be found here.

    • Funds can be lost if the proof system is implemented incorrectly.

    PROVER
    Airbender
    Airbender

    Trusted Setups

    Onchain verifier

    ZKsyncOSVerifierPlonk
    by

    Used in

    ADI Chain logo

    Onchain verifier

    ZKsyncOSVerifierFflonk

    Used in

    ADI Chain logo

    Onchain verifier

    ZKsyncOSVerifierPlonk
    by

    Used in

    ADI Chain logo

    Onchain verifier

    ZKsyncOSVerifierFflonk

    Used in

    ADI Chain logo
    Upgrades & Governance

    Upgrades are managed by a Governance smart contract on L1. The owner of smart contract (ADI Multisig 2) can schedule either transparent or shadow proposals. Transparent proposals have full upgrade data onchain when scheduled. Shadow proposals post only the hash of the upgrade data onchain when proposed, and the full upgrade data during execution.

    Scheduled proposals must wait a minimal delay before being executed (currently 0s). Governance supports a ‘securityCouncil’ role (EOA 7) that can execute proposals without any delay.

    Currently, the governance process does not involve ADI token holders. See this link for more info: https://docs.adi.foundation/appendix/appendix-b-governance.

    Past upgrades

    The metrics include upgrades on the currently used proxy contracts. Historical proxy contracts and changes of such are not included.

    Count of upgrades
    6
    Last upgrade
    1mo 17d ago
    Avg upgrade interval
    2mo
    Updates
    2026 April 10, 08:25 UTC
    8changes

    Upgraded executor facet on ADI Diamond to a new version, then upgraded back. Upgrade params stay the same, the only diff in the contracts is MAINNET COMMIT TIMESTAMP NOT OLDER change from 3 days to 10 days: https://disco.l2beat.com/diff/eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81/eth:0x8991bF7Ed45ad2B8352efbaB83aD6e00c056a61c. Probably they did that to post old batches ( 3 days) from when the chain was down.

    Upgraded executor facet on ADI Diamond to a new version, then upgraded back. Upgrade params stay the same, the only diff in the contracts is MAINNET_COMMIT_TIMESTAMP_NOT_OLDER change from 3 days to 10 days: https://disco.l2beat.com/diff/eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81/eth:0x8991bF7Ed45ad2B8352efbaB83aD6e00c056a61c.

    Probably they did that to post old batches (>3 days) from when the chain was down.

    contract Diamond (eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B) {
    +++ description: 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.
    values.$pastUpgrades.5:
    + ["2026-04-08T18:36:47.000Z","0x4428eb3c0a1be76b850c3a1cd744087320aa49dfa2304311ed0579c10ec1e568",["eth:0xf9DD56364E3878056654C756cEBA692e577f8466","eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07","eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708","eth:0x8991bF7Ed45ad2B8352efbaB83aD6e00c056a61c"]]
    values.$pastUpgrades.6:
    + ["2026-04-09T13:05:35.000Z","0x08471063fd03e8dacd215a9c030f4c54a0f002c778a9a8283bc5161efae20e39",["eth:0xf9DD56364E3878056654C756cEBA692e577f8466","eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07","eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708","eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81"]]
    values.$upgradeCount:
    - 5
    + 7
    }
    contract Governance (eth:0x8253F33026c49A430963FE3991441c02175bda95) {
    +++ description: Allows scheduling transparent and shadow proposals, 'securityCouncil' role can execute without delay.
    +++ description: Number of executed proposals
    values.executedCount:
    - 8
    + 10
    +++ description: Number of scheduled transparent proposals
    values.scheduledTransparentCount:
    - 8
    + 10
    }
    2026 February 06, 11:17 UTC
    High severity
    29changes

    Updated verifier to an unverified smart contract, also updated chain creation params on ADI's chain type manager: https://tools.l2beat.com/decoder-new/?hash=0x83c8f3f7619c6bb27a46696734863f97b0824bfd8dc68d0db491c25050f4073a&data=AwA.

    Updated verifier to an unverified smart contract, also updated chain creation params on ADI’s chain type manager: https://tools.l2beat.com/decoder-new/?hash=0x83c8f3f7619c6bb27a46696734863f97b0824bfd8dc68d0db491c25050f4073a&data=AwA.

    contract Diamond (eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B) {
    +++ description: 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.
    values.$pastUpgrades.4:
    + ["2026-02-05T09:58:23.000Z","0x3837cd476c7e8b1131d519f1dd8aed9cb1fbd779716260b0ff79196520f81b21",["eth:0xf9DD56364E3878056654C756cEBA692e577f8466","eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07","eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708","eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81"]]
    values.$upgradeCount:
    - 4
    + 5
    +++ description: Protocol version, increments with each protocol upgrade.
    +++ severity: HIGH
    values.getProtocolVersion:
    - 128849018880
    + 128849018881
    values.getSemverProtocolVersion.2:
    - 0
    + 1
    values.getVerifier:
    - "eth:0x6Fd373b9470976Ec561F54664f931733C6149852"
    + "eth:0x5E7cF1C310F9E0BF8DbFe70D5cC8021a2109D0AE"
    }
    contract ZKsyncOSChainTypeManager (eth:0x08A1D2962fC29AA46e869A1E7561112cc1026EfA) {
    +++ description: [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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.
    description:
    - "[FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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 0,30,0."
    + "[FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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."
    values.getSemverProtocolVersion.2:
    - 0
    + 1
    values.initialCutHash:
    - "0x28f0af46a96ece2c72a1a7c9c9bfe937162082c4b8925da3b8621599b2869cf5"
    + "0xedf457bf18d9feac26a2fb4a43686971a5eb0f0e21d80393cc8118ecaff31e29"
    values.protocolVersion:
    - 128849018880
    + 128849018881
    values.storedBatchZero:
    - "0x492e189b00c1e79ab2da8e9475e345cbc4ad91b89650d086d956f2dd58ce2d89"
    + "0x18bd4bd6909643336ab04fcab99eff346bc4e74799aeeb2ed809341e3a1df6f9"
    }
    contract ChainAdminOwnable (eth:0x0a8a2473cc5731575a94f58F470851Bc6695B5B8) {
    +++ description: A governance proxy that lets eth:0xF50293Ac52f987122DcD67Eda0cFb34E9d7a0Cf9 act through it.
    +++ description: Timestamps for new protocol version upgrades can be registered here (NOT enforced)
    values.upgradeTimestamps.2:
    + {"_protocolVersion":128849018881,"_upgradeTimestamp":0}
    +++ description: Timestamps for new protocol version upgrades can be registered here (NOT enforced)
    values.upgradeTimestamps.3:
    + {"_protocolVersion":128849018881,"_upgradeTimestamp":1}
    }
    - Status: DELETED
    contract ZKsyncOSDualVerifier (eth:0x6Fd373b9470976Ec561F54664f931733C6149852)
    +++ description: A router contract for verifiers. Routes verification requests to THE PLONK VERIFIER ONLY depending on the supplied proof version.
    contract Governance (eth:0x8253F33026c49A430963FE3991441c02175bda95) {
    +++ description: Allows scheduling transparent and shadow proposals, 'securityCouncil' role can execute without delay.
    +++ description: Number of executed proposals
    values.executedCount:
    - 7
    + 8
    +++ description: Number of scheduled transparent proposals
    values.scheduledTransparentCount:
    - 7
    + 8
    }
    - Status: DELETED
    contract ZKsyncOSVerifierPlonk (eth:0x84871A20Cd4DB1Ac1Db641841Fc7d900e230F92D)
    +++ description: Verifies a zk-SNARK proof using an implementation of the PlonK proof system.
    - Status: DELETED
    contract ZKsyncOSVerifierFflonk (eth:0xF6b3708BE4192CE4526c2F87D4c3eABA79230E6A)
    +++ description: Verifies a zk-SNARK proof using an implementation of the fflonk proof system.
    + Status: CREATED
    contract ADI DialVerifier (eth:0x5E7cF1C310F9E0BF8DbFe70D5cC8021a2109D0AE)
    +++ description: None
    2026 January 20, 11:44 UTC
    High severity
    101changes

    Upgraded Diamond to version 30.0. This includes: - Admin facet minor refactor https://disco.l2beat.com/diff/eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6/eth:0xf9DD56364E3878056654C756cEBA692e577f8466 - Getters facet minor refactor: https://disco.l2beat.com/diff/eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34/eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708 - Mailbox facet minor refactor: https://disco.l2beat.com/diff/eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d/eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07 - Executor facet: https://disco.l2beat.com/diff/eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792/eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81. More explicit DA handling for zksync OS chains. - ChainTypeManager minor refactor: https://disco.l2beat.com/diff/eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61/eth:0x721e27269ce348F71bdAAd7B7b033Afa60e404e0 - L1GenesisUpgrade minor refactor: https://disco.l2beat.com/diff/eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65/eth:0x03174e2BE35A2Dd4380c93385181B1299949eE28 - ValidatorTimelock minor refactor: https://disco.l2beat.com/diff/eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899/eth:0x6CB28384f21B18924FA312AA2E10D4E813e66263 - RollupDAManager minor refactor: https://disco.l2beat.com/diff/eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e/eth:0x57B05e2394B3A12708C552A891f8b0f93645EdEA AFAI can see the main change is the introduction of explicit L2DACommitmentScheme and DA handling for zksync OS chains.

    Upgraded Diamond to version 30.0. This includes:

    • Admin facet minor refactor https://disco.l2beat.com/diff/eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6/eth:0xf9DD56364E3878056654C756cEBA692e577f8466
    • Getters facet minor refactor: https://disco.l2beat.com/diff/eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34/eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708
    • Mailbox facet minor refactor: https://disco.l2beat.com/diff/eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d/eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07
    • Executor facet: https://disco.l2beat.com/diff/eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792/eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81. More explicit DA handling for zksync OS chains.
    • ChainTypeManager minor refactor: https://disco.l2beat.com/diff/eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61/eth:0x721e27269ce348F71bdAAd7B7b033Afa60e404e0
    • L1GenesisUpgrade minor refactor: https://disco.l2beat.com/diff/eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65/eth:0x03174e2BE35A2Dd4380c93385181B1299949eE28
    • ValidatorTimelock minor refactor: https://disco.l2beat.com/diff/eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899/eth:0x6CB28384f21B18924FA312AA2E10D4E813e66263
    • RollupDAManager minor refactor: https://disco.l2beat.com/diff/eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e/eth:0x57B05e2394B3A12708C552A891f8b0f93645EdEA

    AFAI can see the main change is the introduction of explicit L2DACommitmentScheme and DA handling for zksync OS chains.

    contract Diamond (eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B) {
    +++ description: 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.
    sourceHashes.1:
    - "0x76fff5526d80b9fe957c75fa758aa5c38311d3267060edefc11f4b9aac8c5c34"
    + "0x33ec87bcda0bcb30b842846b09d0c7c222129732c34db1ae495d82f3daccadb0"
    values.$implementation.0:
    - "eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6"
    + "eth:0xf9DD56364E3878056654C756cEBA692e577f8466"
    values.$implementation.1:
    - "eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34"
    + "eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07"
    values.$implementation.2:
    - "eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d"
    + "eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708"
    values.$implementation.3:
    - "eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792"
    + "eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81"
    values.$pastUpgrades.3:
    + ["2026-01-20T08:50:23.000Z","0x5a347ad3e11919a37fd5cc2e3f933678ebbbf11b6bcd4f2e1cf6f9f80b6e7462",["eth:0xf9DD56364E3878056654C756cEBA692e577f8466","eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07","eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708","eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81"]]
    values.$upgradeCount:
    - 3
    + 4
    values.facetAddresses.0:
    - "eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6"
    + "eth:0xf9DD56364E3878056654C756cEBA692e577f8466"
    values.facetAddresses.1:
    - "eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34"
    + "eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07"
    values.facetAddresses.2:
    - "eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d"
    + "eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708"
    values.facetAddresses.3:
    - "eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792"
    + "eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81"
    values.facets.eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6:
    - ["acceptAdmin()","unfreezeDiamond()","upgradeChainFromVersion(uint256,((address,uint8,bool,bytes4[])[],address,bytes))","setPorterAvailability(bool)","setTransactionFilterer(address)","setTokenMultiplier(uint128,uint128)","freezeDiamond()","genesisUpgrade(address,address,bytes,bytes[])","forwardedBridgeMint(bytes,bool)","prepareChainCommitment()","setValidator(address,bool)","setPendingAdmin(address)","allowEvmEmulation()","setDAValidatorPair(address,address)","forwardedBridgeBurn(address,address,bytes)","changeFeeParams((uint8,uint32,uint32,uint32,uint32,uint64))","makePermanentRollup()","executeUpgrade(((address,uint8,bool,bytes4[])[],address,bytes))","getRollupDAManager()","forwardedBridgeRecoverFailedTransfer(uint256,bytes32,address,bytes)","setPriorityTxMaxGasLimit(uint256)","setPubdataPricingMode(uint8)"]
    values.facets.eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34:
    - ["getPubdataPricingMode()","getPriorityTxMaxGasLimit()","getTotalBlocksCommitted()","getVerifierParams()","baseTokenGasPriceMultiplierDenominator()","getTransactionFilterer()","isDiamondStorageFrozen()","getProtocolVersion()","getChainId()","getBridgehub()","getTotalBlocksExecuted()","getPriorityTreeRoot()","getVerifier()","facetAddresses()","getDAValidatorPair()","getPriorityQueueSize()","getSettlementLayer()","getAdmin()","storedBlockHash(uint256)","getFirstUnprocessedPriorityTx()","facets()","getL2SystemContractsUpgradeTxHash()","isPriorityQueueActive()","getChainTypeManager()","getBaseTokenAssetId()","getBaseToken()","l2LogsRootHash(uint256)","getL2SystemContractsUpgradeBlockNumber()","getTotalPriorityTxs()","facetFunctionSelectors(address)","getTotalBlocksVerified()","storedBatchHash(uint256)","getTotalBatchesExecuted()","isEthWithdrawalFinalized(uint256,uint256)","isFacetFreezable(address)","facetAddress(bytes4)","getPendingAdmin()","getL2BootloaderBytecodeHash()","getTotalBatchesCommitted()","getL2EvmEmulatorBytecodeHash()","getL2SystemContractsUpgradeBatchNumber()","isFunctionFreezable(bytes4)","baseTokenGasPriceMultiplierNominator()","getTotalBatchesVerified()","getPriorityTreeStartIndex()","getSemverProtocolVersion()","isValidator(address)","getL2DefaultAccountBytecodeHash()"]
    values.facets.eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d:
    - ["proveL1ToL2TransactionStatus(bytes32,uint256,uint256,uint16,bytes32[],uint8)","bridgehubRequestL2Transaction((address,address,uint256,uint256,bytes,uint256,uint256,bytes[],address))","requestL2Transaction(address,uint256,bytes,uint256,uint256,bytes[],address)","proveL2MessageInclusionShared(uint256,uint256,uint256,(uint16,address,bytes),bytes32[])","proveL2LogInclusion(uint256,uint256,(uint8,bool,uint16,address,bytes32,bytes32),bytes32[])","finalizeEthWithdrawal(uint256,uint256,uint16,bytes,bytes32[])","proveL2LeafInclusionShared(uint256,uint256,uint256,bytes32,bytes32[])","proveL2LeafInclusion(uint256,uint256,bytes32,bytes32[])","l2TransactionBaseCost(uint256,uint256,uint256)","requestL2TransactionToGatewayMailbox(uint256,bytes32,uint64)","requestL2ServiceTransaction(address,bytes)","bridgehubRequestL2TransactionOnGateway(bytes32,uint64)","proveL2MessageInclusion(uint256,uint256,(uint16,address,bytes),bytes32[])","proveL2LogInclusionShared(uint256,uint256,uint256,(uint8,bool,uint16,address,bytes32,bytes32),bytes32[])"]
    values.facets.eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792:
    - ["precommitSharedBridge(address,uint256,bytes)","commitBatchesSharedBridge(address,uint256,uint256,bytes)","executeBatchesSharedBridge(address,uint256,uint256,bytes)","revertBatchesSharedBridge(address,uint256)","proveBatchesSharedBridge(address,uint256,uint256,bytes)"]
    values.facets.eth:0xf9DD56364E3878056654C756cEBA692e577f8466:
    + ["acceptAdmin()","unfreezeDiamond()","upgradeChainFromVersion(uint256,((address,uint8,bool,bytes4[])[],address,bytes))","setPorterAvailability(bool)","setTransactionFilterer(address)","setTokenMultiplier(uint128,uint128)","setDAValidatorPair(address,uint8)","freezeDiamond()","genesisUpgrade(address,address,bytes,bytes[])","forwardedBridgeMint(bytes,bool)","prepareChainCommitment()","setValidator(address,bool)","setPendingAdmin(address)","allowEvmEmulation()","forwardedBridgeBurn(address,address,bytes)","changeFeeParams((uint8,uint32,uint32,uint32,uint32,uint64))","makePermanentRollup()","executeUpgrade(((address,uint8,bool,bytes4[])[],address,bytes))","getRollupDAManager()","forwardedBridgeRecoverFailedTransfer(uint256,bytes32,address,bytes)","setPriorityTxMaxGasLimit(uint256)","setPubdataPricingMode(uint8)"]
    values.facets.eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07:
    + ["proveL1ToL2TransactionStatus(bytes32,uint256,uint256,uint16,bytes32[],uint8)","bridgehubRequestL2Transaction((address,address,uint256,uint256,bytes,uint256,uint256,bytes[],address))","requestL2Transaction(address,uint256,bytes,uint256,uint256,bytes[],address)","proveL2MessageInclusionShared(uint256,uint256,uint256,(uint16,address,bytes),bytes32[])","proveL2LogInclusion(uint256,uint256,(uint8,bool,uint16,address,bytes32,bytes32),bytes32[])","finalizeEthWithdrawal(uint256,uint256,uint16,bytes,bytes32[])","proveL2LeafInclusionShared(uint256,uint256,uint256,bytes32,bytes32[])","proveL2LeafInclusion(uint256,uint256,bytes32,bytes32[])","l2TransactionBaseCost(uint256,uint256,uint256)","requestL2TransactionToGatewayMailbox(uint256,bytes32,uint64)","requestL2ServiceTransaction(address,bytes)","bridgehubRequestL2TransactionOnGateway(bytes32,uint64)","proveL2MessageInclusion(uint256,uint256,(uint16,address,bytes),bytes32[])","proveL2LogInclusionShared(uint256,uint256,uint256,(uint8,bool,uint16,address,bytes32,bytes32),bytes32[])"]
    values.facets.eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708:
    + ["getPubdataPricingMode()","getPriorityTxMaxGasLimit()","getTotalBlocksCommitted()","getVerifierParams()","baseTokenGasPriceMultiplierDenominator()","getTransactionFilterer()","isDiamondStorageFrozen()","getProtocolVersion()","getChainId()","getBridgehub()","getTotalBlocksExecuted()","getPriorityTreeRoot()","getVerifier()","facetAddresses()","getDAValidatorPair()","getPriorityQueueSize()","getSettlementLayer()","getAdmin()","storedBlockHash(uint256)","getFirstUnprocessedPriorityTx()","facets()","getL2SystemContractsUpgradeTxHash()","isPriorityQueueActive()","getChainTypeManager()","getBaseTokenAssetId()","getBaseToken()","l2LogsRootHash(uint256)","getL2SystemContractsUpgradeBlockNumber()","getTotalPriorityTxs()","facetFunctionSelectors(address)","getTotalBlocksVerified()","storedBatchHash(uint256)","getTotalBatchesExecuted()","isEthWithdrawalFinalized(uint256,uint256)","isFacetFreezable(address)","facetAddress(bytes4)","getPendingAdmin()","getL2BootloaderBytecodeHash()","getTotalBatchesCommitted()","getL2EvmEmulatorBytecodeHash()","getL2SystemContractsUpgradeBatchNumber()","isFunctionFreezable(bytes4)","baseTokenGasPriceMultiplierNominator()","getTotalBatchesVerified()","getPriorityTreeStartIndex()","getSemverProtocolVersion()","isValidator(address)","getL2DefaultAccountBytecodeHash()"]
    values.facets.eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81:
    + ["precommitSharedBridge(address,uint256,bytes)","commitBatchesSharedBridge(address,uint256,uint256,bytes)","executeBatchesSharedBridge(address,uint256,uint256,bytes)","revertBatchesSharedBridge(address,uint256)","proveBatchesSharedBridge(address,uint256,uint256,bytes)"]
    +++ description: l1da, l2da
    +++ severity: HIGH
    values.getDAValidatorPair.0:
    - "eth:0x45D594304087A359dC60a502f5c35d62DfeCDDA7"
    + "eth:0xFB630a206E6D7485cB9DFa929859E1a977F0a211"
    +++ description: l1da, l2da
    +++ severity: HIGH
    values.getDAValidatorPair.1:
    - "eth:0x7eDcafE015D1F66f5dc8eB419d0deA445b9b7F49"
    + 4
    +++ description: Protocol version, increments with each protocol upgrade.
    +++ severity: HIGH
    values.getProtocolVersion:
    - 124554051584
    + 128849018880
    values.getRollupDAManager:
    - "eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e"
    + "eth:0x57B05e2394B3A12708C552A891f8b0f93645EdEA"
    values.getSemverProtocolVersion.1:
    - 29
    + 30
    values.getVerifier:
    - "eth:0x28E31e2B74bc38c6cd58CF282807fCBa8C00C529"
    + "eth:0x6Fd373b9470976Ec561F54664f931733C6149852"
    implementationNames.eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6:
    - "AdminFacet"
    implementationNames.eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34:
    - "GettersFacet"
    implementationNames.eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d:
    - "MailboxFacet"
    implementationNames.eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792:
    - "ExecutorFacet"
    implementationNames.eth:0xf9DD56364E3878056654C756cEBA692e577f8466:
    + "AdminFacet"
    implementationNames.eth:0xB0D33d94aD4048070f510eF0086F12d20595dd07:
    + "MailboxFacet"
    implementationNames.eth:0xFA565846c217Bc0bA0f75027D4eECccdD68a9708:
    + "GettersFacet"
    implementationNames.eth:0x56767eB2E3197A1dfa030faaD4A65cF38E807c81:
    + "ExecutorFacet"
    }
    contract ZKsyncOSChainTypeManager (eth:0x08A1D2962fC29AA46e869A1E7561112cc1026EfA) {
    +++ description: [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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 0,30,0.
    name:
    - "ChainTypeManager"
    + "ZKsyncOSChainTypeManager"
    sourceHashes.1:
    - "0x02b4caf5d4d2907355dd4d367636aba133b66f2d7152f316ff2b714915c26d61"
    + "0xce7505b0d1b5400403ca2c4d2c36a9e7cc633e215f5da2ab4d2256a0389e7dad"
    description:
    - "[FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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 0,29,0."
    + "[FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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 0,30,0."
    values.$implementation:
    - "eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61"
    + "eth:0x721e27269ce348F71bdAAd7B7b033Afa60e404e0"
    values.$pastUpgrades.1:
    + ["2026-01-20T08:29:47.000Z","0x9443189514311b66d96da238adb1a18e3043616a45b62a6e99cd6f64b5996e81",["eth:0x721e27269ce348F71bdAAd7B7b033Afa60e404e0"]]
    values.$upgradeCount:
    - 1
    + 2
    values.getSemverProtocolVersion.1:
    - 29
    + 30
    values.initialCutHash:
    - "0x104e964adff545a2d8c61cde628773c8206571f2cd9bcc1910a692c5edffe612"
    + "0x28f0af46a96ece2c72a1a7c9c9bfe937162082c4b8925da3b8621599b2869cf5"
    values.initialForceDeploymentHash:
    - "0xe4631d0e46e6d7cc59d51a81acdc97e93aff07a859e12706b5ad2601501e36f5"
    + "0xb17899fd9e58ac2342eee6c162a433bd929224f181a7ad5e30d8e33e27d8fab2"
    values.l1GenesisUpgrade:
    - "eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65"
    + "eth:0x03174e2BE35A2Dd4380c93385181B1299949eE28"
    values.protocolVersion:
    - 124554051584
    + 128849018880
    implementationNames.eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61:
    - "ChainTypeManager"
    implementationNames.eth:0x721e27269ce348F71bdAAd7B7b033Afa60e404e0:
    + "ZKsyncOSChainTypeManager"
    }
    contract ChainAdminOwnable (eth:0x0a8a2473cc5731575a94f58F470851Bc6695B5B8) {
    +++ description: A governance proxy that lets eth:0xF50293Ac52f987122DcD67Eda0cFb34E9d7a0Cf9 act through it.
    +++ description: Timestamps for new protocol version upgrades can be registered here (NOT enforced)
    values.upgradeTimestamps.0:
    + {"_protocolVersion":128849018880,"_upgradeTimestamp":0}
    +++ description: Timestamps for new protocol version upgrades can be registered here (NOT enforced)
    values.upgradeTimestamps.1:
    + {"_protocolVersion":128849018880,"_upgradeTimestamp":1}
    }
    - Status: DELETED
    contract DualVerifier (eth:0x28E31e2B74bc38c6cd58CF282807fCBa8C00C529)
    +++ description: A router contract for verifiers. Routes verification requests to the corresponding fflonk or plonk verifiers depending on the supplied proof type and version.
    - Status: DELETED
    contract RollupL1DAValidator (eth:0x45D594304087A359dC60a502f5c35d62DfeCDDA7)
    +++ description: 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.
    - Status: DELETED
    contract L1GenesisUpgrade (eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65)
    +++ description: Diamond implementation code to initialize new ZK chains. Used to set their chainID.
    - Status: DELETED
    contract L1VerifierFflonk (eth:0x60aDfa0b7dEd57e0f1e251417769B6dbd1056208)
    +++ description: Verifies a zk-SNARK proof using an implementation of the fflonk proof system.
    contract Governance (eth:0x8253F33026c49A430963FE3991441c02175bda95) {
    +++ description: Allows scheduling transparent and shadow proposals, 'securityCouncil' role can execute without delay.
    +++ description: Number of executed proposals
    values.executedCount:
    - 6
    + 7
    +++ description: Number of scheduled transparent proposals
    values.scheduledTransparentCount:
    - 6
    + 7
    receivedPermissions.1:
    + {"permission":"interact","from":"eth:0x57B05e2394B3A12708C552A891f8b0f93645EdEA","description":"manage allowed rollup DA pairs (allowed to be used by rollups in permanent rollup mode).","role":".owner"}
    receivedPermissions.2:
    - {"permission":"interact","from":"eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e","description":"manage allowed rollup DA pairs (allowed to be used by rollups in permanent rollup mode).","role":".owner"}
    }
    - Status: DELETED
    contract L1VerifierPlonk (eth:0x8F870CF6621AEaF6026dFfc77f484FdAb370c4Ba)
    +++ description: Verifies a zk-SNARK proof using an implementation of the PlonK proof system.
    - Status: DELETED
    contract RollupDAManager (eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e)
    +++ description: 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.
    contract ValidatorTimelock (eth:0xE28cAc160C2a79dFA1fbd2169AC5fa5d061cf186) {
    +++ description: Intermediary contract between the *Validators* and the central diamond contract that delays block execution (ie withdrawals and other L2 --> L1 messages) by 0s.
    sourceHashes.1:
    - "0x61d15f463b4112c36915d9f1a8016942addb43b4300b197971ab5d4e00eeb2d6"
    + "0x48e14ef8734c4e2891920ea10bac8fb0c1d36e0a18c1e38ec85253ee2be5056d"
    values.$implementation:
    - "eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899"
    + "eth:0x6CB28384f21B18924FA312AA2E10D4E813e66263"
    values.$pastUpgrades.1:
    + ["2026-01-20T08:29:47.000Z","0x9443189514311b66d96da238adb1a18e3043616a45b62a6e99cd6f64b5996e81",["eth:0x6CB28384f21B18924FA312AA2E10D4E813e66263"]]
    values.$upgradeCount:
    - 1
    + 2
    implementationNames.eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899:
    - "ValidatorTimelock"
    implementationNames.eth:0x6CB28384f21B18924FA312AA2E10D4E813e66263:
    + "ValidatorTimelock"
    }
    + Status: CREATED
    contract L1GenesisUpgrade (eth:0x03174e2BE35A2Dd4380c93385181B1299949eE28)
    +++ description: Diamond implementation code to initialize new ZK chains. Used to set their chainID.
    + Status: CREATED
    contract RollupDAManager (eth:0x57B05e2394B3A12708C552A891f8b0f93645EdEA)
    +++ description: Simple registry for allowed DA validators for different data availability modes. Scheme 3 is used by default RollupL1DAValidator, the commitment includes EIP-4844 blobs data. Scheme 4 is used only for ZKsyncOS, it is keccak of blob versioned hashes filled with pubdata.
    + Status: CREATED
    contract ZKsyncOSDualVerifier (eth:0x6Fd373b9470976Ec561F54664f931733C6149852)
    +++ description: A router contract for verifiers. Routes verification requests to THE PLONK VERIFIER ONLY depending on the supplied proof version.
    + Status: CREATED
    contract ZKsyncOSVerifierPlonk (eth:0x84871A20Cd4DB1Ac1Db641841Fc7d900e230F92D)
    +++ description: Verifies a zk-SNARK proof using an implementation of the PlonK proof system.
    + Status: CREATED
    contract ZKsyncOSVerifierFflonk (eth:0xF6b3708BE4192CE4526c2F87D4c3eABA79230E6A)
    +++ description: Verifies a zk-SNARK proof using an implementation of the fflonk proof system.
    + Status: CREATED
    contract BlobsL1DAValidatorZKsyncOS (eth:0xFB630a206E6D7485cB9DFa929859E1a977F0a211)
    +++ description: DA verifier specifically for zksync OS chains. It keeps track of blob versioned hashes and checks if blob with particular hash was published.
    2025 December 18, 10:46 UTC
    25changes

    Initial disco for ADI chain. Diff from zksync2: - BridgeHub: no serious changes (https://disco.l2beat.com/diff/eth:0xc89423b4909080fB8F8A43dF5E1C27001e55C24B/eth:0xcf1c73439c85f7eB9d4439dAf398Fd6392d176E6) - L1MessageRoot: no serious changes (https://disco.l2beat.com/diff/eth:0x669ed5BB1377C917333e7d4223ce3419EE4099fD/eth:0x5BaC331B75f3bF88148bfb0be2a76be4FBb05417) - L1ChainAssetHandler: no serious changes (https://disco.l2beat.com/diff/eth:0xaa180C70126f751C164465638770B865965A744B/eth:0x0C06695f21B118a9A10101D303f00575A566D1A0) - L1NativeTokenVault: no serious changes (https://disco.l2beat.com/diff/eth:0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083/eth:0x2FC2a2dB562046C732d3aB0f4e1c1F62C3eE8e3E) - L1AssetRouter: no serious changes (https://disco.l2beat.com/diff/eth:0x2386Bc2E26f39b72f0D4FDE0c07D68e4eEFfC725/eth:0x47eec6F57c7E84391Ba6C9Ac976537d0DB0bb257) - L1GenesisUpgrade: minor changes due to adding zksync OS (https://disco.l2beat.com/diff/eth:0x390bc10e854e137d2625573272b3fEe2C615eBA4/eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65) - ServerNotifier: added tracking of scheduled protocol upgrade timestamps (https://disco.l2beat.com/diff/eth:0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A/eth:0xDc64B98F394A8bf980F777631352029C9114e2e6) - ValidatorTimelock: cosmetic diff (https://disco.l2beat.com/diff/eth:0x6086051f93412F550C0820e76f0fbE85F64C7ef8/eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899) - ChainTypeManager: removed one minor genesis state check (https://disco.l2beat.com/diff/eth:0x4aB7204e4205c96C32E23ADa9191720976dC084f/eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61) - Diamond proxy: cleaned up errors (https://disco.l2beat.com/diff/eth:0x32400084C286CF3E17e7B677ea9583e60a000324/eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B) - Admin, Getters facets: added zksync OS flag and two new tx types: priority and upgrade (https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6, https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34) - Mailbox facet: modified minimal trx gas computation for zksyncOS (https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d) - Executor facet: added logic to commit batches with zksyncOS (https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792) - DualVerifier: added owner to add and remove plonk and fflonk verifiers with different versions (https://disco.l2beat.com/diff/eth:0x4d335C5C08FEc91a39965351AbB6E315ad2e9ff3/eth:0x28E31e2B74bc38c6cd58CF282807fCBa8C00C529) Has Governance contract that is set as owner for many contracts, allows transparent and shadow proposals.

    Initial disco for ADI chain. Diff from zksync2:

    • BridgeHub: no serious changes (https://disco.l2beat.com/diff/eth:0xc89423b4909080fB8F8A43dF5E1C27001e55C24B/eth:0xcf1c73439c85f7eB9d4439dAf398Fd6392d176E6)
    • L1MessageRoot: no serious changes (https://disco.l2beat.com/diff/eth:0x669ed5BB1377C917333e7d4223ce3419EE4099fD/eth:0x5BaC331B75f3bF88148bfb0be2a76be4FBb05417)
    • L1ChainAssetHandler: no serious changes (https://disco.l2beat.com/diff/eth:0xaa180C70126f751C164465638770B865965A744B/eth:0x0C06695f21B118a9A10101D303f00575A566D1A0)
    • L1NativeTokenVault: no serious changes (https://disco.l2beat.com/diff/eth:0x8E1C5A8c5d8C33ed0eC756d6f4006f2D875bA083/eth:0x2FC2a2dB562046C732d3aB0f4e1c1F62C3eE8e3E)
    • L1AssetRouter: no serious changes (https://disco.l2beat.com/diff/eth:0x2386Bc2E26f39b72f0D4FDE0c07D68e4eEFfC725/eth:0x47eec6F57c7E84391Ba6C9Ac976537d0DB0bb257)
    • L1GenesisUpgrade: minor changes due to adding zksync OS (https://disco.l2beat.com/diff/eth:0x390bc10e854e137d2625573272b3fEe2C615eBA4/eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65)
    • ServerNotifier: added tracking of scheduled protocol upgrade timestamps (https://disco.l2beat.com/diff/eth:0x555D040F4A089D1dF14B372a87C5aF8FA37BDB7A/eth:0xDc64B98F394A8bf980F777631352029C9114e2e6)
    • ValidatorTimelock: cosmetic diff (https://disco.l2beat.com/diff/eth:0x6086051f93412F550C0820e76f0fbE85F64C7ef8/eth:0x406f329645E323B1bd1C020a219e30E6DAf4f899)
    • ChainTypeManager: removed one minor genesis state check (https://disco.l2beat.com/diff/eth:0x4aB7204e4205c96C32E23ADa9191720976dC084f/eth:0x191D1D51a9CBe988E69ad3D27eFab60663e5ed61)
    • Diamond proxy: cleaned up errors (https://disco.l2beat.com/diff/eth:0x32400084C286CF3E17e7B677ea9583e60a000324/eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B)
    • Admin, Getters facets: added zksync OS flag and two new tx types: priority and upgrade (https://disco.l2beat.com/diff/eth:0x37CefD5b44c131FEf27e9Bc542e5B77A177A7253/eth:0x8C653b99f18Eb3bAb927519990bfC281500b0De6, https://disco.l2beat.com/diff/eth:0x1666124221622eb6154306Ea9BA87043e8be88B2/eth:0x1807f10E686E5Cd6A655cF7343f093a7372cAf34)
    • Mailbox facet: modified minimal trx gas computation for zksyncOS (https://disco.l2beat.com/diff/eth:0x1e34aB39a9682149165ddeCc0583d238A5448B45/eth:0x3Be4B380F277Cb02dF56712667f7F8FA1Ca1536d)
    • Executor facet: added logic to commit batches with zksyncOS (https://disco.l2beat.com/diff/eth:0x0597CaA8A823A699d7CD9E62B5E5d4153FF82691/eth:0x6fB87A1dd4DE3bDbB96f2FA9ac7FCb74b7d4C792)
    • DualVerifier: added owner to add and remove plonk and fflonk verifiers with different versions (https://disco.l2beat.com/diff/eth:0x4d335C5C08FEc91a39965351AbB6E315ad2e9ff3/eth:0x28E31e2B74bc38c6cd58CF282807fCBa8C00C529)

    Has Governance contract that is set as owner for many contracts, allows transparent and shadow proposals.

    Initial discovery

    + Status: CREATED
    contract Diamond (eth:0x0583Ef2B6416cb7B287406438B940E4d99680C5B)
    +++ description: 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.
    + Status: CREATED
    contract ChainTypeManager (eth:0x08A1D2962fC29AA46e869A1E7561112cc1026EfA)
    +++ description: [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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 0,29,0.
    + Status: CREATED
    contract L1NativeTokenVault (eth:0x0A0F8912162Ff83A036883dbaDA42efF647a3065)
    +++ description: Canonical central asset escrow for all ZK stack chains.
    + Status: CREATED
    contract ChainAdminOwnable (eth:0x0a8a2473cc5731575a94f58F470851Bc6695B5B8)
    +++ description: A governance proxy that lets eth:0xF50293Ac52f987122DcD67Eda0cFb34E9d7a0Cf9 act through it.
    + Status: CREATED
    contract DualVerifier (eth:0x28E31e2B74bc38c6cd58CF282807fCBa8C00C529)
    +++ description: A router contract for verifiers. Routes verification requests to the corresponding fflonk or plonk verifiers depending on the supplied proof type and version.
    + Status: CREATED
    contract ChainAdminOwnable (eth:0x2d6E82F1f8fba89a67cc8d742B12633db4732Ca7)
    +++ description: A governance proxy that lets eth:0xB272B188855128c10a933Edb62CC64c22B1f3754 act through it.
    + Status: CREATED
    contract ProxyAdmin (eth:0x34f56Ba641aC59E897c6179ffeCAe9769fbfC90C)
    +++ description: None
    + Status: CREATED
    contract RollupL1DAValidator (eth:0x45D594304087A359dC60a502f5c35d62DfeCDDA7)
    +++ description: 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.
    + Status: CREATED
    contract L1GenesisUpgrade (eth:0x5C9B360aB320a23692c9E81006ddB15de991ab65)
    +++ description: Diamond implementation code to initialize new ZK chains. Used to set their chainID.
    + Status: CREATED
    contract L1Nullifier (eth:0x5E5a72077dFB354Dfe61200b8f31fa491F9B9Cea)
    +++ description: Contract responsible for bookkeeping L1 bridging transactions. Used to finalize withdrawals and reclaim failed deposits. Does not escrow funds.
    + Status: CREATED
    contract L1VerifierFflonk (eth:0x60aDfa0b7dEd57e0f1e251417769B6dbd1056208)
    +++ description: Verifies a zk-SNARK proof using an implementation of the fflonk proof system.
    + Status: CREATED
    contract L1MessageRoot (eth:0x783e8Cb57366888F84d815fd53c3aeE99b2d6d37)
    +++ description: Aggregates remote bridge message roots from all ZK stack chains. To be used with the Gateway when deployed.
    + Status: CREATED
    contract BridgeHub (eth:0x7a38c18a229Ef8a0AE7104Ba272A46280f2d59Cb)
    +++ description: [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. The main registry (hub) for chain contracts (supports more than ADI chain) 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.
    + Status: CREATED
    contract ProxyAdmin (eth:0x8140aBB60c9AfB5241D90af948Cfa7644b2D3217)
    +++ description: None
    + Status: CREATED
    contract Governance (eth:0x8253F33026c49A430963FE3991441c02175bda95)
    +++ description: Allows scheduling transparent and shadow proposals, 'securityCouncil' role can execute without delay.
    + Status: CREATED
    contract L1VerifierPlonk (eth:0x8F870CF6621AEaF6026dFfc77f484FdAb370c4Ba)
    +++ description: Verifies a zk-SNARK proof using an implementation of the PlonK proof system.
    + Status: CREATED
    contract L1ChainAssetHandler (eth:0x924E0145347243a94C5C69e372Ca52c77f8e6CF1)
    +++ description: Specialized contract for managing chain assets, i.e. chain migrations.
    + Status: CREATED
    contract RollupDAManager (eth:0x96A4B3Dd2F3cd3717b7D0c9d1aF8e110CAaD787e)
    +++ description: 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.
    + Status: CREATED
    contract CTMDeploymentTracker (eth:0xaCD4a320f8a45abE71756B85DF519201d041EA5f)
    +++ description: 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.
    + Status: CREATED
    contract ADI Multisig 2 (eth:0xB272B188855128c10a933Edb62CC64c22B1f3754)
    +++ description: None
    + Status: CREATED
    contract ServerNotifier (eth:0xd477bd7f14F9A26ebd51827EFB1d40a41f71b70C)
    +++ description: A simple contract that can be called by the ChainAdmin to emit notifications about chain migrations.
    + Status: CREATED
    contract ValidatorTimelock (eth:0xE28cAc160C2a79dFA1fbd2169AC5fa5d061cf186)
    +++ description: Intermediary contract between the *Validators* and the central diamond contract that delays block execution (ie withdrawals and other L2 --> L1 messages) by 0s.
    + Status: CREATED
    contract L1AssetRouter (eth:0xf25227EFAD2046d19777A4CA540b5C016Df7fe7A)
    +++ description: Part of the v26 upgrade: Canonical central asset router for all ZK stack chains (not escrowing funds).
    + Status: CREATED
    contract ADI Multisig 1 (eth:0xF50293Ac52f987122DcD67Eda0cFb34E9d7a0Cf9)
    +++ description: None
    + Status: CREATED
    contract L1ERC20Bridge (eth:0xfA8B5EA9b8d36a72Eb0ba66Cc7aBc83d9deeC3B8)
    +++ description: Legacy bridge for depositing ERC20 tokens to ADI Chain.
    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.

    • MEV can be extracted if the operator exploits their centralized position and frontruns user transactions.

    Users can force any transaction via L1

    If a user is censored by the L2 Sequencer, they can try to force their transaction via an L1 queue. Right now there is no mechanism that forces L2 Sequencer to include transactions from the queue in an L2 block. The operator can implement a TransactionFilterer that censors forced transactions.

    • Users can be censored if the operator refuses to include their transactions.

    • Users can be censored if the operator implements a TransactionFilterer, which is possible without delay.

    1. L1 - L2 interoperability - Developer's documentation
    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.

    1. Withdrawing funds - ZKsync documentation

    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
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    Ethereum

    Actors:

    Governance0x8253…da95

    Allows scheduling transparent and shadow proposals, ‘securityCouncil’ role can execute without delay.

    • Can upgrade with no delay
      • ZKsyncOSChainTypeManager
      • L1NativeTokenVault
      • L1Nullifier
      • L1MessageRoot
      • BridgeHub
      • L1ChainAssetHandler
      • CTMDeploymentTracker
      • ValidatorTimelock
      • L1AssetRouter
    • Can interact with ZKsyncOSChainTypeManager
      • 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
    • Can interact with RollupDAManager
      • manage allowed rollup DA pairs (allowed to be used by rollups in permanent rollup mode)
    • 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
    ADI Multisig 20xB272…3754

    A Multisig with 2/3 threshold.

    • Can upgrade with no delay
      • ServerNotifier
    • Can interact with ZKsyncOSChainTypeManager
      • revert batches for any connected chain (ZK cluster Admin role)
    • Can interact with BridgeHub
      • create new zk chains (based on the current version), register tokens (ZK cluster Admin role)

    Participants (3):

    0x2e48…9Dc90x3740…1ecE0x288c…66A9
    ADI Multisig 10xF502…0Cf9

    A Multisig with 2/3 threshold.

    • 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)

    Participants (3):

    0x2e48…9Dc90x3740…1ecE0x288c…66A9
    4 EOAs
    EOA 1EOA 2EOA 3EOA 5
    • Can interact with ValidatorTimelock
      • call the functions to commit, prove, execute and revert L2 batches through the ValidatorTimelock in the ADI Diamond contract
    EOA 40xb633…8985
    • Can interact with L1Nullifier
      • pause, unpause and set critical escrow address references
    EOA 60x5CcF…366a
    • Can interact with ChainAdminOwnable
      • set the conversion factor for gas token deposits
    EOA 70x59Be…e59f
    • Can interact with L1NativeTokenVault
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    Ethereum

    Diamond0x0583…0C5BImplementation #1 (Upgradable)Implementation #2 (Upgradable)Implementation #3 (Upgradable)Implementation #4 (Upgradable)

    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: ChainAdminOwnable; ultimately ADI Multisig 1
    ZKsyncOSChainTypeManager0x08A1…6EfAImplementation (Upgradable)Admin

    [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. 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: ChainAdminOwnable, ProxyAdmin; ultimately ADI Multisig 2, Governance
      • owner: Governance
    Can be upgraded by:
    Governance with no delay
    RollupDAManager0x57B0…EdEA

    Simple registry for allowed DA validators for different data availability modes. Scheme 3 is used by default RollupL1DAValidator, the commitment includes EIP-4844 blobs data. Scheme 4 is used only for ZKsyncOS, it is keccak of blob versioned hashes filled with pubdata.

    • Roles:
      • owner: Governance
    L1Nullifier0x5E5a…9CeaImplementation (Upgradable)Admin

    Contract responsible for bookkeeping L1 bridging transactions. Used to finalize withdrawals and reclaim failed deposits. Does not escrow funds.

    • Roles:
      • admin: ProxyAdmin; ultimately Governance
      • owner: EOA 4
    Can be upgraded by:
    Governance with no delay
    L1MessageRoot0x783e…6d37Implementation (Upgradable)Admin

    Aggregates remote bridge message roots from all ZK stack chains. To be used with the Gateway when deployed.

    • Roles:
      • admin: ProxyAdmin; ultimately Governance
    Can be upgraded by:
    Governance with no delay
    BridgeHub0x7a38…59CbImplementation (Upgradable)Admin

    [FORK] This contract is not the standard hub contract from the Elastic network but a local fork for ADI chain. The main registry (hub) for chain contracts (supports more than ADI chain) 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: ChainAdminOwnable, ProxyAdmin; ultimately ADI Multisig 2, Governance
      • owner: Governance
    Can be upgraded by:
    Governance with no delay
    CTMDeploymentTracker0xaCD4…EA5fImplementation (Upgradable)Admin

    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 Governance
    Can be upgraded by:
    Governance with no delay
    ValidatorTimelock0xE28c…f186Implementation (Upgradable)Admin

    Intermediary contract between the Validators and the central diamond contract that delays block execution (ie withdrawals and other L2 --> L1 messages) by 0s.

    • Roles:
      • admin: ProxyAdmin; ultimately Governance
      • validatorVTL: EOA 1, EOA 2, EOA 3, EOA 5
    Can be upgraded by:
    Governance with no delay
    ChainAdminOwnable0x0a8a…B5B8

    A governance proxy that lets ADI Multisig 1 act through it.

    • Roles:
      • owner: ADI Multisig 1
      • tokenMultiplierSetter: EOA 6
    ChainAdminOwnable0x2d6E…2Ca7

    A governance proxy that lets ADI Multisig 2 act through it.

    • Roles:
      • owner: ADI Multisig 2
    L1ERC20Bridge0xfA8B…C3B8

    Legacy bridge for depositing ERC20 tokens to ADI Chain.

    ZKsyncOSVerifierPlonk0x0851…F13F
    L1NativeTokenVault
    Escrow
    0x0A0F…3065Implementation (Upgradable)Admin

    Canonical central asset escrow for all ZK stack chains.

    • Roles:
      • admin: ProxyAdmin; ultimately Governance
      • owner: EOA 7

    All supported tokens in this escrow are included in the value secured calculation.

    Can be upgraded by:
    Governance with no delay
    ProxyAdmin0x34f5…C90C
    • Roles:
      • owner: ChainAdminOwnable
    ZKsyncOSDualVerifier0x5E7c…D0AE

    A router contract for verifiers. Routes verification requests to THE PLONK VERIFIER ONLY depending on the supplied proof version.

    ProxyAdmin0x8140…3217
    • Roles:
      • owner: Governance
    L1ChainAssetHandler0x924E…6CF1Implementation (Upgradable)Admin

    Specialized contract for managing chain assets, i.e. chain migrations.

    • Roles:
      • admin: ProxyAdmin; ultimately Governance
    Can be upgraded by:
    Governance with no delay
    ServerNotifier0xd477…b70CImplementation (Upgradable)Admin

    A simple contract that can be called by the ChainAdmin to emit notifications about chain migrations.

    • Roles:
      • admin: ProxyAdmin; ultimately ADI Multisig 2
    Can be upgraded by:
    ADI Multisig 2 with no delay
    ZKsyncOSVerifierFflonk0xF6b3…0E6A

    Verifies a zk-SNARK proof using an implementation of the fflonk proof system.

    BlobsL1DAValidatorZKsyncOS0xFB63…a211

    DA verifier specifically for zksync OS chains. It keeps track of blob versioned hashes and checks if blob with particular hash was published.

    The current deployment carries some associated risks:

    • Funds can be stolen if a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL).