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SOON is a Layer 2 chain built on top of the SOON Stack. It innovates with a Decoupled SVM that separates Solana's execution (needed for the SOON SVM) from its consensus (not needed since SOON settles on Ethereum), yielding performance and flexibility...


  • Total Value SecuredTVS
    $496.00 K5.48%
  • Past day UOPSDaily UOPS
    0.080.26%
  • Gas token
    ETH
  • Type
    Other

  • Purpose
    Universal

  • Tokens breakdown

    Sequencer failureState validationData availabilityExit windowProposer failure

    Badges

    About

    SOON is a Layer 2 chain built on top of the SOON Stack. It innovates with a Decoupled SVM that separates Solana's execution (needed for the SOON SVM) from its consensus (not needed since SOON settles on Ethereum), yielding performance and flexibility...

    Why is the project listed in others?

    The proof system isn't fully functional

    Consequence: projects without a proper proof system fully rely on single entities to safely update the state. A malicious proposer can finalize an invalid state, which can cause loss of funds.

    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 here.


    Total
    Canonically BridgedCanonically Bridged ValueCanonical
    Natively MintedNatively Minted TokensNative
    Externally BridgedExternally Bridged ValueExternal

    ETH & derivatives
    Stablecoins
    BTC & derivatives
    Other
    Compare with other projects
    Past Day UOPS
    Past Day Ops count
    Max. UOPS
    Past day UOPS/TPS Ratio
    Compare with other projects

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



    Total cost
    Avg cost per L2 UOP
    Avg cost per day

    Compare with other projects

    This section shows how much data the project publishes to its data-availability (DA) layer over time. The project currently posts data toEthereumEthereumEigenDAEigenDA.


    Data source: API provided by EigenLayer

    Data posted
    Avg size per day
    Avg size per L2 UOP

    Compare with other projects

    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. tx data 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 Tx data submissions were performed for 2mo 20d (from 2026 Jul 11, 06:43 UTC ). These typically occur every 44m 3s on average.

    No Tx data submissions were performed for 16d 13h (from 2026 May 11, 12:52 UTC until 2026 May 28, 02:44 UTC). These typically occur every 44m 3s on average.

    No Tx data submissions were performed for 15d 9h (from 2026 Mar 24, 05:09 UTC until 2026 Apr 08, 14:56 UTC). These typically occur every 44m 3s on average.

    Fraud proof systemThe infrastructure that allows projects to verify their state transitions. It is composed by onchain verifiers and offchain provers. The main two flavors are optimistic and ZK proof systems, but they can be combined in a hybrid model. In general though, if a system is able to accept state roots optimistically, even if it has a ZK component, it is considered an optimistic proof system. is currently under development. Users need to trust the blockAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over. proposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. to submit correct L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. state rootsA cryptographic hash succinctly representing a state using a Merkle tree..
    Fraud proof systemThe infrastructure that allows projects to verify their state transitions. It is composed by onchain verifiers and offchain provers. The main two flavors are optimistic and ZK proof systems, but they can be combined in a hybrid model. In general though, if a system is able to accept state roots optimistically, even if it has a ZK component, it is considered an optimistic proof system. is currently under development. Users need to trust the blockAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over. proposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. to submit correct L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. state rootsA cryptographic hash succinctly representing a state using a Merkle tree..
    Sequencer failureState validationData availabilityExit windowProposer failure
    Sequencer failure
    Self sequence

    In the event of a sequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. failure, users can force transactions to be included in the project’s chain by sending them to L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development.. There can be up to a 12h delay on this operation.

    State validation
    None

    Currently the system permits invalid state rootsA cryptographic hash succinctly representing a state using a Merkle tree.. More details in project overview.

    Data availability
    External

    Proof construction and state derivation fully rely on data that is posted on EigenDA. The sequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. is publishing data to EigenDA v2. Sequencer transaction data roots are not checked against the DACert VerifierAn entity in a ZK-Rollup, often a smart contract, that verifies zero-knowledge proofs submitted by a prover. onchain.

    Exit window
    None

    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 rootsA cryptographic hash succinctly representing a state using a Merkle tree. on L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development., so in the event of failure the withdrawals are frozen.

    Soon Alpha Mainnet
    Soon Alpha Mainnet is not even a
    Stage 0
    project.
    There is no available nodeA software client that participates in the network. software that can reconstruct L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups. state transitions from available DA, so this system cannot be independently verified.

    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 is posted to EigenDA

    Transactions roots are posted onchain and the full data is posted on EigenDA. Since the ServiceManager bridgeA message-passing protocol between two blockchains. At its most basic, a token bridge consists of a smart contract which can escrow funds on one side of the bridge, and instruct the release or minting of corresponding assets on the other side, but bridges could also support arbitrary messages. How these instructions are validated is a critical factor in assessing the trust assumptions of a bridge. is not used, availability of the data is not verified against EigenDA operators, meaning that the SequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. can single-handedly publish unavailable commitments. If EigenDA becomes unavailable, the sequencer falls back to Ethereum.

    • Funds can be lost if the sequencer posts an unavailable transaction root (CRITICAL).

    • Funds can be lost if the data is not available on the external provider (CRITICAL).

    1. EigenDA Docs - Overview
    2. Derivation: Batch submission - OP Mainnet specs
    3. BatchInbox - address
    4. OptimismPortal.sol - source code, depositTransaction function
    Learn more about the DA layer here: EigenDA logoEigenDA
    No state validation

    OP Stack projects can use the OP fault proof systemThe infrastructure that allows projects to verify their state transitions. It is composed by onchain verifiers and offchain provers. The main two flavors are optimistic and ZK proof systems, but they can be combined in a hybrid model. In general though, if a system is able to accept state roots optimistically, even if it has a ZK component, it is considered an optimistic proof system., already being deployed on some. This project though is not using fault proofs yet and is relying on the honesty of the permissioned ProposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. and Challengers to ensure state correctness. The smart contract system permits invalid state rootsA cryptographic hash succinctly representing a state using a Merkle tree..

    • Funds can be stolen if an invalid state root is submitted to the system (CRITICAL).

    1. L2OutputOracle.sol - source code, deleteL2Outputs function

    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
    9
    Last upgrade
    2mo 2d ago
    Avg upgrade interval
    6mo 15d
    2026 August 20, 15:31 UTC
    2changes

    The batcher resumed posting batches on 2026-08-17 after 37 days of inactivity, now publishing EigenDA v3 certificates to the batch inbox hourly through a new EigenDA on-demand payment account ( 0xcB3a6380C666Ff97F474E11FD41519c320b7a276 ).

    contract SystemConfig (eth:0x1E69C2522Dc139c9fC74E6ecb89373d435E70Dd8) [opstack/SystemConfig] {
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    values.opStackDA.isUsingEigenDA:
    - false
    + "v3"
    values.sequencerInbox:
    - "eth:0x0000000000000000000000000000000000000000"
    + "eth:0xfF000000000000000000000000000000000000FF"
    }
    2026 July 30, 22:22 UTC
    High severity
    41changes

    State validation reverted from the Kailua ZK fault proof system to the permissioned L2OutputOracle: the OptimismPortal implementation was replaced and now reads state roots from the L2OutputOracle instead of the DisputeGameFactory. Only the permissioned proposer can submit state roots and rotate its own address. The SoonMultisig (challenger) can delete proposed outputs, change the 3-day finalization period and the submission interval, and rotate the challenger address. DisputeGameFactory, KailuaGame, KailuaTreasury, FaultDisputeGame, PermissionedDisputeGame and RiscZeroVerifier are no longer referenced. - OptimismPortal 3.11.0-beta.2 - 2.8.1-beta.1 (SOON fork): https://disco.l2beat.com/diff/eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6/eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA Batcher rotated. The last batch was posted to the batch inbox on 2026-07-11 and the new batcher has not posted since.

    contract SystemConfig (eth:0x1E69C2522Dc139c9fC74E6ecb89373d435E70Dd8) [opstack/SystemConfig] {
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    values.batcherHash:
    - "eth:0xae0Fbdd7CEC6036F3364000eE6d2a60BdAbb10c6"
    + "eth:0x267576444F8504B23B98F2b3C0e31bB32eB6Eb7a"
    values.sequencerInbox:
    - "eth:0xfF000000000000000000000000000000000000FF"
    + "eth:0x0000000000000000000000000000000000000000"
    values.sequencerPubkeyInfos.1:
    + [6544083,"0xa8caa55df61160c0561d0e762b4d460df8c9e44578963e04741132e6a9044f10"]
    }
    - Status: DELETED
    contract RiscZeroVerifier (eth:0x455218fa82e96A6adCcf182EE8A90A93BE7a6Bc6) [N/A]
    +++ description: None
    - Status: DELETED
    contract PermissionedDisputeGame (eth:0x57d53F9715A0A8bEBDFf74b72eCE85950CcfD087) [N/A]
    +++ description: None
    contract OptimismPortal (eth:0x5A0702C7EbbEC83802b35DB737FCcDc5fc6c5E07) [opstack/OptimismPortal_soon] {
    +++ description: The main entry point to deposit funds from host chain to this chain. It also allows to prove and finalize withdrawals. This version (originally from SOON) of the OptimismPortal is modified to support Solana addresses. It disallows ERC20 token deposits and L1->L2 transactions that would create a contract. Withdrawals can be frozen / blacklisted by a permissioned actor. Has a MIN_BRIDGE_VALUE set to 0.001 ETH.
    name:
    - "OptimismPortal2"
    + "OptimismPortal"
    template:
    - "opstack/OptimismPortal2_soon"
    + "opstack/OptimismPortal_soon"
    sourceHashes.1:
    - "0x020cd1f3781cbab14e8093d3fa6bc9d2b4079839f36be9eb7adaf2a099f4f41e"
    + "0xd8927de1b0bb795177ecf745c74d3cdfcb0990dbaafe9c16803b5fddac9de99d"
    values.$implementation:
    - "eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6"
    + "eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA"
    values.$pastUpgrades.4:
    + ["2026-07-29T02:34:11.000Z","0xe885648ef6a4a0df9bb07233d1cd890015d0c00cdd713e388eadd58fd149803c",["eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA"]]
    values.$upgradeCount:
    - 4
    + 5
    values.disputeGameFactory:
    - "eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2"
    values.disputeGameFinalityDelaySeconds:
    - 864000
    values.paused:
    - true
    + false
    values.proofMaturityDelaySeconds:
    - 864000
    values.RespectedGameString:
    - "KailuaGame"
    values.respectedGameType:
    - 2000
    values.respectedGameTypeUpdatedAt:
    - 1765180799
    values.version:
    - "3.11.0-beta.2"
    + "2.8.1-beta.1"
    values.l2Oracle:
    + "eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448"
    fieldMeta.respectedGameType:
    - {"severity":"HIGH"}
    fieldMeta.paused:
    - {"severity":"HIGH","description":"Whether the contract is paused or not. Determined by the SuperchainConfig contract PAUSED_SLOT. Here it pauses withdrawals. If this is paused, also the L1CrossDomainMessenger and ERC-20, ERC-721 deposits are paused."}
    implementationNames.eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6:
    - "OptimismPortal2"
    implementationNames.eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA:
    + "OptimismPortal"
    usedTypes.1:
    - {"typeCaster":"Mapping","arg":{"0":"FaultDisputeGame","1":"PermissionedDisputeGame","2000":"KailuaGame"}}
    }
    - Status: DELETED
    contract KailuaGame (eth:0x62CFb085Ce639a7C3896E51548378cFE5829Bd32) [risc0/KailuaGame]
    +++ description: Implementation of the KailuaGame with type 2000. Based on this implementation, new KailuaGames are created with every new state root proposal.
    contract L1ERC721Bridge (eth:0x7d34832fc0cc6ed718a993CAAb4c6CAdaE9763A2) [opstack/L1ERC721Bridge] {
    +++ description: Used to bridge ERC-721 tokens from host chain to this chain.
    values.paused:
    - true
    + false
    }
    contract ProxyAdmin (eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d) [global/ProxyAdmin] {
    +++ description: None
    directlyReceivedPermissions.1:
    + {"permission":"upgrade","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":"admin"}
    directlyReceivedPermissions.5:
    - {"permission":"upgrade","from":"eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2","role":"admin"}
    }
    - Status: DELETED
    contract FaultDisputeGame (eth:0xAa17a7021054a984199a5bC40538f3DD6d04d36e) [N/A]
    +++ description: None
    contract L1CrossDomainMessenger (eth:0xbB138cE37870443d5b2B02a36619D3478738E0f6) [opstack/L1CrossDomainMessenger] {
    +++ description: Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function.
    values.paused:
    - true
    + false
    }
    - Status: DELETED
    contract DisputeGameFactory (eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2) [opstack/DisputeGameFactory]
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    contract SuperchainConfig (eth:0xD02631b334FfDCD5674217e57fe524c44B341DD4) [opstack/SuperchainConfigFake] {
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages the `PAUSED_SLOT`, a boolean value indicating whether the local chain is paused, and `GUARDIAN_SLOT`, the address of the guardian which can pause and unpause the system.
    values.paused:
    - true
    + false
    }
    contract SoonMultisig (eth:0xD686D498a67Bb96FAa4afA3b2b1Cf182f5c3A701) [GnosisSafe] {
    +++ description: None
    receivedPermissions.0:
    + {"permission":"interact","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","description":"Allowed to challenge or delete state roots proposed by a Proposer.","role":".challenger"}
    receivedPermissions.1:
    + {"permission":"interact","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","description":"Allowed to challenge or delete state roots proposed by a Proposer.","role":".CHALLENGER"}
    receivedPermissions.2:
    + {"permission":"interact","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","description":"change the finalization period (challenge period).","role":".challenger"}
    receivedPermissions.5:
    + {"permission":"upgrade","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":"admin","via":[{"address":"eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d"}]}
    receivedPermissions.6:
    - {"permission":"upgrade","from":"eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2","role":"admin","via":[{"address":"eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d"}]}
    }
    - Status: DELETED
    contract KailuaTreasury (eth:0xd6E6c8bd7A86C2ba6e846D8ae2f9cC013c533beb) [risc0/KailuaTreasury_soon]
    +++ description: Entrypoint for state root proposals. Manages bonds (currently 0.01 ETH) and tournaments for the OP Kailua state validation system, wrapping the OP stack native DisputeGameFactory.
    contract L1StandardBridge (eth:0xe822c3d76ac133f7d9f12c39c1BF28a797624AA9) [opstack/L1StandardBridge_soon] {
    +++ description: The main entry point to deposit ETH from host chain to this chain. This version (originally from SOON) is modified to support Solana addresses. It requires specifying the destination SOL address and removes support for ERC20 tokens.
    values.paused:
    - true
    + false
    }
    + Status: CREATED
    contract L2OutputOracle (eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448) [opstack/L2OutputOracle_soon]
    +++ description: Contains a list of proposed state roots which Proposers assert to be a result of block execution. Currently only the PROPOSER address can submit new state roots.
    2026 July 14, 15:59 UTC
    High severity
    16changes

    SOON paused on 2026-07-12; reason unknown. Guardian EOA rotated ( 0x7fFB…1593 → 0xcb17…B911 ), the new guardian was also added to SoonMultisig (member[3]), then it called pause on the SuperchainConfigFake — OptimismPortal2, L1CrossDomainMessenger, L1StandardBridge, L1ERC721Bridge all read paused: true through it. OptimismPortal2 impl upgraded (tx); disputeGameFinalityDelaySeconds and proofMaturityDelaySeconds extended 8h → 10d. SystemConfig opStackDA.isUsingEigenDA set to false (was "v3" ) — EigenDA disabled.

    contract SystemConfig (eth:0x1E69C2522Dc139c9fC74E6ecb89373d435E70Dd8) [opstack/SystemConfig] {
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    values.opStackDA.isUsingEigenDA:
    - "v3"
    + false
    }
    contract OptimismPortal2 (eth:0x5A0702C7EbbEC83802b35DB737FCcDc5fc6c5E07) [opstack/OptimismPortal2_soon] {
    +++ description: The main entry point to deposit funds from host chain to this chain. It also allows to prove and finalize withdrawals. This version (originally from SOON) of the OptimismPortal is modified to support Solana addresses. It disallows ERC20 token deposits and L1->L2 transactions that would create a contract. Withdrawals can be frozen / blacklisted by a permissioned actor. Has a MIN_BRIDGE_VALUE set to 0.001 ETH.
    values.$implementation:
    - "eth:0x29174FC953F163452093aFa9eE3904168C74b2E7"
    + "eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6"
    values.$pastUpgrades.3:
    + ["2026-07-12T16:28:23.000Z","0xa4ccaddf2ef0b79355fce160a4241d1b637cb32d6a1b6b7c12eea57f32577f0c",["eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6"]]
    values.$upgradeCount:
    - 3
    + 4
    values.disputeGameFinalityDelaySeconds:
    - 28800
    + 864000
    values.guardian:
    - "eth:0x7fFB604c57FAFbAeaE6587DF035a0DB032301593"
    + "eth:0xcb17B5F3Cf75eb40F0Addf97B0D457922f10B911"
    +++ description: Whether the contract is paused or not. Determined by the SuperchainConfig contract PAUSED_SLOT. Here it pauses withdrawals. If this is paused, also the L1CrossDomainMessenger and ERC-20, ERC-721 deposits are paused.
    +++ severity: HIGH
    values.paused:
    - false
    + true
    values.proofMaturityDelaySeconds:
    - 28800
    + 864000
    implementationNames.eth:0x29174FC953F163452093aFa9eE3904168C74b2E7:
    - "OptimismPortal2"
    implementationNames.eth:0xcd87F6B5B03A73733ab5A9cbB56951600f3330A6:
    + "OptimismPortal2"
    }
    contract L1ERC721Bridge (eth:0x7d34832fc0cc6ed718a993CAAb4c6CAdaE9763A2) [opstack/L1ERC721Bridge] {
    +++ description: Used to bridge ERC-721 tokens from host chain to this chain.
    values.paused:
    - false
    + true
    }
    contract L1CrossDomainMessenger (eth:0xbB138cE37870443d5b2B02a36619D3478738E0f6) [opstack/L1CrossDomainMessenger] {
    +++ description: Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function.
    values.paused:
    - false
    + true
    }
    contract SuperchainConfig (eth:0xD02631b334FfDCD5674217e57fe524c44B341DD4) [opstack/SuperchainConfigFake] {
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages the `PAUSED_SLOT`, a boolean value indicating whether the local chain is paused, and `GUARDIAN_SLOT`, the address of the guardian which can pause and unpause the system.
    values.guardian:
    - "eth:0x7fFB604c57FAFbAeaE6587DF035a0DB032301593"
    + "eth:0xcb17B5F3Cf75eb40F0Addf97B0D457922f10B911"
    values.paused:
    - false
    + true
    }
    contract SoonMultisig (eth:0xD686D498a67Bb96FAa4afA3b2b1Cf182f5c3A701) [GnosisSafe] {
    +++ description: None
    values.$members.3:
    - "eth:0x7b4d0e4d7C961CF967e88f600399d610736DeE51"
    + "eth:0xcb17B5F3Cf75eb40F0Addf97B0D457922f10B911"
    }
    contract L1StandardBridge (eth:0xe822c3d76ac133f7d9f12c39c1BF28a797624AA9) [opstack/L1StandardBridge_soon] {
    +++ description: The main entry point to deposit ETH from host chain to this chain. This version (originally from SOON) is modified to support Solana addresses. It requires specifying the destination SOL address and removes support for ERC20 tokens.
    values.paused:
    - false
    + true
    }
    2025 December 12, 15:40 UTC
    High severity
    33changes

    OptimismPortal replaced with OptimismPortal2 using dispute games. Significant change compared to standard OptimismPortal2 is the possibility for a Guardian to freeze withdrawals with updateWithdrawalFrozenState().

    - Status: DELETED
    contract L2OutputOracle (eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448)
    +++ description: Contains a list of proposed state roots which Proposers assert to be a result of block execution. Currently only the PROPOSER address can submit new state roots.
    contract OptimismPortal2 (eth:0x5A0702C7EbbEC83802b35DB737FCcDc5fc6c5E07) {
    +++ description: The main entry point to deposit funds from host chain to this chain. It also allows to prove and finalize withdrawals. This version (originally from SOON) of the OptimismPortal is modified to support Solana addresses. It disallows ERC20 token deposits and L1->L2 transactions that would create a contract. Withdrawals can be frozen / blacklisted by a permissioned actor. Has a MIN_BRIDGE_VALUE set to 0.001 ETH.
    name:
    - "OptimismPortal"
    + "OptimismPortal2"
    template:
    - "opstack/OptimismPortal_soon"
    + "opstack/OptimismPortal2_soon"
    sourceHashes.1:
    - "0x8970317120da471aba019c65d0f23fec669b03ba35e9eceec59a50a85bb53201"
    + "0x110afdef90725a52a9718b18c76ee94eedc98dbaa26f8818c43489caa0c4096d"
    values.$implementation:
    - "eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA"
    + "eth:0x29174FC953F163452093aFa9eE3904168C74b2E7"
    values.$pastUpgrades.2:
    + ["2025-12-08T07:12:35.000Z","0xd73f4c3b5fed189876a719ed9a80e649b30e2eabba32d6e642deab3bc7f1e149",["eth:0x29174FC953F163452093aFa9eE3904168C74b2E7"]]
    values.$upgradeCount:
    - 2
    + 3
    values.l2Oracle:
    - "eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448"
    values.version:
    - "2.8.1-beta.1"
    + "3.11.0-beta.2"
    values.disputeGameFactory:
    + "eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2"
    values.disputeGameFinalityDelaySeconds:
    + 28800
    values.proofMaturityDelaySeconds:
    + 28800
    values.RespectedGameString:
    + "KailuaGame"
    +++ severity: HIGH
    values.respectedGameType:
    + 2000
    values.respectedGameTypeUpdatedAt:
    + 1765180799
    fieldMeta.respectedGameType:
    + {"severity":"HIGH"}
    fieldMeta.paused:
    + {"severity":"HIGH","description":"Whether the contract is paused or not. Determined by the SuperchainConfig contract PAUSED_SLOT. Here it pauses withdrawals. If this is paused, also the L1CrossDomainMessenger and ERC-20, ERC-721 deposits are paused."}
    implementationNames.eth:0x24331B68bea70c2b086BC883EEEA551BAF80C2BA:
    - "OptimismPortal"
    implementationNames.eth:0x29174FC953F163452093aFa9eE3904168C74b2E7:
    + "OptimismPortal2"
    usedTypes.1:
    + {"typeCaster":"Mapping","arg":{"0":"FaultDisputeGame","1":"PermissionedDisputeGame","2000":"KailuaGame"}}
    }
    contract ProxyAdmin (eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d) {
    +++ description: None
    directlyReceivedPermissions.1:
    - {"permission":"upgrade","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":"admin"}
    directlyReceivedPermissions.5:
    + {"permission":"upgrade","from":"eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2","role":"admin"}
    }
    contract SoonMultisig (eth:0xD686D498a67Bb96FAa4afA3b2b1Cf182f5c3A701) {
    +++ description: None
    receivedPermissions.0:
    - {"permission":"challenge","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":".challenger"}
    receivedPermissions.1:
    - {"permission":"challenge","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":".CHALLENGER"}
    receivedPermissions.2:
    - {"permission":"interact","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","description":"change the finalization period (challenge period).","role":".challenger"}
    receivedPermissions.5:
    - {"permission":"upgrade","from":"eth:0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448","role":"admin","via":[{"address":"eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d"}]}
    receivedPermissions.6:
    + {"permission":"upgrade","from":"eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2","role":"admin","via":[{"address":"eth:0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d"}]}
    }
    + Status: CREATED
    contract RiscZeroVerifier (eth:0x455218fa82e96A6adCcf182EE8A90A93BE7a6Bc6)
    +++ description: None
    + Status: CREATED
    contract PermissionedDisputeGame (eth:0x57d53F9715A0A8bEBDFf74b72eCE85950CcfD087)
    +++ description: None
    + Status: CREATED
    contract KailuaGame (eth:0x62CFb085Ce639a7C3896E51548378cFE5829Bd32)
    +++ description: Implementation of the KailuaGame with type 2000. Based on this implementation, new KailuaGames are created with every new state root proposal.
    + Status: CREATED
    contract FaultDisputeGame (eth:0xAa17a7021054a984199a5bC40538f3DD6d04d36e)
    +++ description: None
    + Status: CREATED
    contract DisputeGameFactory (eth:0xcf0f094b6765eD31038003831F7f75bD07Bd49c2)
    +++ description: The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them.
    + Status: CREATED
    contract KailuaTreasury (eth:0xd6E6c8bd7A86C2ba6e846D8ae2f9cC013c533beb)
    +++ description: Entrypoint for state root proposals. Manages bonds (currently 0.01 ETH) and tournaments for the OP Kailua state validation system, wrapping the OP stack native DisputeGameFactory.
    2025 July 14, 12:46 UTC
    10changes

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

    New and verified contracts

    + Status: CREATED
    contract L2OutputOracle (0x017A4D5A1F670F5a9dfEBD0F0cB25C2C44a82448)
    +++ description: Contains a list of proposed state roots which Proposers assert to be a result of block execution. Currently only the PROPOSER address can submit new state roots.
    + Status: CREATED
    contract SystemConfig (0x1E69C2522Dc139c9fC74E6ecb89373d435E70Dd8)
    +++ description: Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address.
    + Status: CREATED
    contract OptimismPortal (0x5A0702C7EbbEC83802b35DB737FCcDc5fc6c5E07)
    +++ description: The main entry point to deposit funds from host chain to this chain. It also allows to prove and finalize withdrawals. This version (originally from SOON) of the OptimismPortal is modified to support Solana addresses. It disallows ERC20 token deposits and L1->L2 transactions that would create a contract. Withdrawals can be frozen / blacklisted by a permissioned actor. Has a MIN_BRIDGE_VALUE set to 0.001 ETH.
    + Status: CREATED
    contract L1ERC721Bridge (0x7d34832fc0cc6ed718a993CAAb4c6CAdaE9763A2)
    +++ description: Used to bridge ERC-721 tokens from host chain to this chain.
    + Status: CREATED
    contract ProxyAdmin (0x90b2Da5f99C0ca658067D621E3694C2Ec49C233d)
    +++ description: None
    + Status: CREATED
    contract AddressManager (0xA131FB9Ac1D86651Cf863baaE9190A787Aef56dd)
    +++ description: Legacy contract used to manage a mapping of string names to addresses. Modern OP stack uses a different standard proxy system instead, but this contract is still necessary for backwards compatibility with several older contracts.
    + Status: CREATED
    contract L1CrossDomainMessenger (0xbB138cE37870443d5b2B02a36619D3478738E0f6)
    +++ description: Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function.
    + Status: CREATED
    contract SuperchainConfig (0xD02631b334FfDCD5674217e57fe524c44B341DD4)
    +++ description: This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages the `PAUSED_SLOT`, a boolean value indicating whether the local chain is paused, and `GUARDIAN_SLOT`, the address of the guardian which can pause and unpause the system.
    + Status: CREATED
    contract SoonMultisig (0xD686D498a67Bb96FAa4afA3b2b1Cf182f5c3A701)
    +++ description: None
    + Status: CREATED
    contract L1StandardBridge (0xe822c3d76ac133f7d9f12c39c1BF28a797624AA9)
    +++ description: The main entry point to deposit ETH from host chain to this chain. This version (originally from SOON) is modified to support Solana addresses. It requires specifying the destination SOL address and removes support for ERC20 tokens.

    The system has a centralized operator

    The operatorAn operator is the entity charged with managing a rollup and progressing its state. A rollup operator can be a centralized sequencer, proposer, prover, challenger, pauser of admin that is able to perform upgrades. is the only entity that can propose blocksAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over.. 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.

    1. L2OutputOracle.sol - source code, CHALLENGER address
    2. L2OutputOracle.sol - source code, PROPOSER address

    Users can force any transaction

    Because the state of the system is based on transactions submitted on the underlying host chain and anyone can submit their transactions there it allows the users to circumvent censorship by interacting with the smart contract on the host chain directly.

    1. Sequencing Window - OP Mainnet Specs
    2. OptimismPortal.sol - source code, depositTransaction function

    Regular messaging

    The user initiates L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups.->L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. messages by submitting a regular transaction on this chain. When the blockAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over. containing that transaction is settled, the message becomes available for processing on L1. The process of block finalization takes a challenge periodIn optimistic rollups, the window of time wherein network participants can assert that some fraud was included in a prior block. Most optimistic rollups currently specify a challenge window of 7 days. By extending the period, there is more time for participants to guard against fraud (invalid state transitions), but also more time until withdrawals gets enabled. of 3d to complete.

    • Funds can be frozen if the centralized validator goes down. Users cannot produce blocks themselves and exiting the system requires new block production (CRITICAL).

    1. OptimismPortal.sol - source code, proveWithdrawalTransaction function
    2. OptimismPortal.sol - source code, finalizeWithdrawalTransaction function
    3. L2OutputOracle.sol - source code, PROPOSER check

    Forced messaging

    If the user experiences censorship from the operatorAn operator is the entity charged with managing a rollup and progressing its state. A rollup operator can be a centralized sequencer, proposer, prover, challenger, pauser of admin that is able to perform upgrades. with regular L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups.->L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development. messaging they can submit their messages directly on L1. The system is then obliged to service this request or halt all messages, including forced withdrawals from L1 and regular messages initiated on L2. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message.

    1. Forced withdrawal from an OP Stack blockchain

    Solana Virtual Machine is supported

    OP stack chains are usually pursuing the EVM EquivalenceA perfect degree of compatibility; where one system or concept is indistinguishable from another in the domain being compared. In the context of rollups, it generally refers to the proximity to the EVM and to Ethereum architecture. model. But Soon implements the rust-based Solana virtual machine (SVM) which uses parallel processing.

    1. Soon Docs - Decoupled SVM
    A dashboard to explore contracts and permissions
    Go to Disco
    Disco UI Banner

    Ethereum

    Actors:

    SoonMultisig0xD686…A701

    A Multisig with 2/4 threshold.

    • Can upgrade with no delay
      • L2OutputOracle
      • SystemConfig
      • OptimismPortal
      • L1ERC721Bridge
      • L1CrossDomainMessenger
      • SuperchainConfig
      • L1StandardBridge
    • Can interact with L2OutputOracle
      • Allowed to challenge or delete state rootsA cryptographic hash succinctly representing a state using a Merkle tree. proposed by a ProposerIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block.
      • change the finalization period (challenge periodIn optimistic rollups, the window of time wherein network participants can assert that some fraud was included in a prior block. Most optimistic rollups currently specify a challenge window of 7 days. By extending the period, there is more time for participants to guard against fraud (invalid state transitions), but also more time until withdrawals gets enabled.)
    • Can interact with SystemConfig
      • it can update the preconfer address, the batch submitter (SequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs.) address and the gasA virtual fuel used to execute smart contracts on a rollup. The EVM (or other VM within the rollup) uses an accounting mechanism to correspond the consumption of gas to the consumption of computing resources, and to limit the consumption of computing resources. configuration of the system
    • Can interact with AddressManager
      • set and change address mappings

    Member of SoonMultisig.

    • Can interact with OptimismPortal
      • Allowed to pause withdrawals. In op stack systems with a proof systemThe infrastructure that allows projects to verify their state transitions. It is composed by onchain verifiers and offchain provers. The main two flavors are optimistic and ZK proof systems, but they can be combined in a hybrid model. In general though, if a system is able to accept state roots optimistically, even if it has a ZK component, it is considered an optimistic proof system., the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionlessAnyone willing should be able to join and leave the network at any time, without causing significant disturbance to the network or being detrimental to the party in question. No single entity should have the power to allowlist or blocklist participants.)
      • freeze specific withdrawals
    • Can interact with SuperchainConfig
      • Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless)
    • Can interact with L2OutputOracle
      • Allowed to post new state rootsA cryptographic hash succinctly representing a state using a Merkle tree. of the current layer to the host chain
    • Can interact with SystemConfig
      • Allowed to commit transactions from the current layer to the host chain
    A dashboard to explore contracts and permissions
    Go to Disco
    Disco UI Banner
    A diagram of the smart contract architecture
    A diagram of the smart contract architecture

    Ethereum

    Contains a list of proposed state rootsA cryptographic hash succinctly representing a state using a Merkle tree. which Proposers assert to be a result of blockAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over. execution. Currently only the PROPOSERIn the context of L2s, the actor that proposes a claimed state root on L1. The term is also used in the context of Ethereum to refer to the actor that proposes a new block. address can submit new state roots.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
      • challenger: SoonMultisig
      • proposer: EOA 2
    Can be upgraded by:

    Contains configuration parameters such as the SequencerA party responsible for ordering and executing transactions on the rollup. The sequencer verifies transactions, compresses the data into a block, and submits the data related to it to enable state reconstruction to Ethereum L1 as a single transaction. The data can be either transaction data or state diffs. address, gas limitThe maximum amount of gas a transaction or block may consume. on this chain and the unsafe blockAn ordered list of transactions and chain-related metadata that gets bundled together and published to the L1/DA layer. Nodes execute the transactions contained within blocks to change the rollup chain’s state. Protocol rules dictate what constitutes a valid block, and invalid blocks are skipped over. signer address.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
      • batcherHash: EOA 3
      • owner: SoonMultisig
    Can be upgraded by:

    The main entry point to deposit funds from host chain to this chain. It also allows to prove and finalize withdrawals. This version (originally from SOON) of the OptimismPortal is modified to support Solana addresses. It disallows ERC20 token deposits and L1Layer 1 (L1) is a blockchain that is self-reliant on its validator set for its security and consensus properties. Ethereum is an example of a layer 1. Blockchains started receiving the moniker of layer 1 once layer 2 became a meaningful area of development.->L2Layer 2 (L2) is a category of technical solutions aimed to scale the base layer in a trust minimized way. This category includes solutions like rollups as well as state channels and plasma. Other solutions are able to scale further, but with the introduction of additional trust assumptions, which are therefore not trust minimized. Sometimes the term Layer 2 is used to refer to include these solutions too, like validiums and optimiums, but to distinguish between trust minimized and non trust minimized solutions they are often referred to as "light" L2s, opposed to "strong" L2s like rollups. transactions that would create a contract. Withdrawals can be frozen / blacklisted by a permissioned actor. Has a MIN_BRIDGE_VALUE set to 0.001 ETH.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
      • guardian: EOA 1
    The following tokens are included in the value secured calculation:
    ETH token logo
    Can be upgraded by:

    This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages the PAUSED_SLOT, a boolean value indicating whether the local chain is paused, and GUARDIAN_SLOT, the address of the guardian which can pause and unpause the system.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
      • guardian: EOA 1
    Can be upgraded by:

    Used to bridgeA message-passing protocol between two blockchains. At its most basic, a token bridge consists of a smart contract which can escrow funds on one side of the bridge, and instruct the release or minting of corresponding assets on the other side, but bridges could also support arbitrary messages. How these instructions are validated is a critical factor in assessing the trust assumptions of a bridge. ERC-721 tokens from host chain to this chain.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
    Can be upgraded by:

    Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain’s epoch gas limitThe maximum amount of gas a transaction or block may consume., it can be resubmitted via this contract’s replay function.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig
    Can be upgraded by:

    The main entry point to deposit ETH from host chain to this chain. This version (originally from SOON) is modified to support Solana addresses. It requires specifying the destination SOL address and removes support for ERC20 tokens.

    • Roles:
      • admin: ProxyAdmin; ultimately SoonMultisig

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

    Can be upgraded by:
    ProxyAdmin0x90b2…233d
    • Roles:
      • owner: SoonMultisig

    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).