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0x664B8b7617998a4925098310d56B429C7C2F24Bc

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Contract Source Code Verified (Exact Match)

Contract Name:
CometblsClient

Compiler Version
v0.8.27+commit.40a35a09

Optimization Enabled:
Yes with 1000 runs

Other Settings:
paris EvmVersion
File 1 of 22 : CometblsClient.sol
pragma solidity ^0.8.27;

import "@openzeppelin-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import "@openzeppelin-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin-upgradeable/utils/PausableUpgradeable.sol";

import "./ICS23MembershipVerifier.sol";
import "./Verifier.sol";

import "../core/02-client/ILightClient.sol";
import "../core/24-host/IBCStore.sol";
import "../core/24-host/IBCCommitment.sol";
import "../lib/Common.sol";
import "../lib/ICS23.sol";

struct SignedHeader {
    uint64 height;
    uint64 secs;
    uint64 nanos;
    bytes32 validatorsHash;
    bytes32 nextValidatorsHash;
    bytes32 appHash;
}

struct Header {
    SignedHeader signedHeader;
    uint64 trustedHeight;
    bytes zeroKnowledgeProof;
}

struct ClientState {
    bytes31 chainId;
    uint64 trustingPeriod;
    uint64 maxClockDrift;
    uint64 frozenHeight;
    uint64 latestHeight;
    bytes32 contractAddress;
}

struct ConsensusState {
    uint64 timestamp;
    bytes32 appHash;
    bytes32 nextValidatorsHash;
}

struct Misbehaviour {
    Header headerA;
    Header headerB;
}

library CometblsClientLib {
    error ErrNotIBC();
    error ErrTrustedConsensusStateNotFound();
    error ErrUntrustedHeightLTETrustedHeight();
    error ErrUntrustedTimestampLTETrustedTimestamp();
    error ErrHeaderExpired();
    error ErrMaxClockDriftExceeded();
    error ErrInvalidZKP();
    error ErrInvalidUntrustedValidatorsHash();
    error ErrInvalidMisbehaviourHeadersSequence();
    error ErrInvalidMisbehaviour();
    error ErrClientFrozen();
    error ErrInvalidInitialConsensusState();

    function isExpired(
        uint64 headerTime,
        uint64 trustingPeriod,
        uint64 currentTime
    ) internal pure returns (bool) {
        return uint256(currentTime)
            > (uint256(headerTime) + uint256(trustingPeriod));
    }

    function encodeMemory(
        Header memory header
    ) internal pure returns (bytes memory) {
        return abi.encode(
            header.signedHeader, header.trustedHeight, header.zeroKnowledgeProof
        );
    }

    function encode(
        Header calldata header
    ) internal pure returns (bytes memory) {
        return abi.encode(
            header.signedHeader, header.trustedHeight, header.zeroKnowledgeProof
        );
    }

    function decodeHeader(
        bytes calldata bz
    ) internal pure returns (Header calldata) {
        Header calldata header;
        assembly {
            header := bz.offset
        }
        return header;
    }

    function decodeMisbehaviour(
        bytes calldata bz
    ) internal pure returns (Misbehaviour calldata) {
        Misbehaviour calldata misbehaviour;
        assembly {
            misbehaviour := bz.offset
        }
        return misbehaviour;
    }

    function encodeMemory(
        ClientState memory clientState
    ) internal pure returns (bytes memory) {
        return abi.encode(
            clientState.chainId,
            clientState.trustingPeriod,
            clientState.maxClockDrift,
            clientState.frozenHeight,
            clientState.latestHeight,
            clientState.contractAddress
        );
    }

    function decodeClientState(
        bytes calldata bz
    ) internal pure returns (ClientState calldata) {
        ClientState calldata clientState;
        assembly {
            clientState := bz.offset
        }
        return clientState;
    }

    function encodeMemory(
        ConsensusState memory consensusState
    ) internal pure returns (bytes memory) {
        return abi.encode(
            consensusState.timestamp,
            consensusState.appHash,
            consensusState.nextValidatorsHash
        );
    }

    function decodeConsensusState(
        bytes calldata bz
    ) internal pure returns (ConsensusState calldata) {
        ConsensusState calldata consensusState;
        assembly {
            consensusState := bz.offset
        }
        return consensusState;
    }

    function decodeConsensusStateMemory(
        bytes memory bz
    ) internal pure returns (ConsensusState memory) {
        ConsensusState memory consensusState;
        (uint64 timestamp, bytes32 appHash, bytes32 nextValidatorsHash) =
            abi.decode(bz, (uint64, bytes32, bytes32));
        consensusState.timestamp = timestamp;
        consensusState.appHash = appHash;
        consensusState.nextValidatorsHash = nextValidatorsHash;
        return consensusState;
    }

    function commit(
        ConsensusState memory consensusState
    ) internal pure returns (bytes32) {
        return keccak256(encodeMemory(consensusState));
    }

    function commit(
        ClientState memory clientState
    ) internal pure returns (bytes32) {
        return keccak256(encodeMemory(clientState));
    }
}

contract CometblsClient is
    ILightClient,
    Initializable,
    UUPSUpgradeable,
    OwnableUpgradeable,
    PausableUpgradeable
{
    using CometblsClientLib for *;

    address private ibcHandler;

    mapping(uint32 => ClientState) private clientStates;
    mapping(uint32 => mapping(uint64 => ConsensusState)) private consensusStates;
    mapping(uint32 => mapping(uint64 => ProcessedMoment)) private
        processedMoments;

    constructor() {
        _disableInitializers();
    }

    function initialize(
        address _ibcHandler,
        address admin
    ) public initializer {
        __Ownable_init(admin);
        ibcHandler = _ibcHandler;
    }

    function createClient(
        uint32 clientId,
        bytes calldata clientStateBytes,
        bytes calldata consensusStateBytes
    ) external override onlyIBC returns (ConsensusStateUpdate memory update) {
        ClientState calldata clientState = clientStateBytes.decodeClientState();
        ConsensusState calldata consensusState =
            consensusStateBytes.decodeConsensusState();
        if (clientState.latestHeight == 0 || consensusState.timestamp == 0) {
            revert CometblsClientLib.ErrInvalidInitialConsensusState();
        }
        clientStates[clientId] = clientState;
        consensusStates[clientId][clientState.latestHeight] = consensusState;
        return ConsensusStateUpdate({
            clientStateCommitment: clientState.commit(),
            consensusStateCommitment: consensusState.commit(),
            height: clientState.latestHeight
        });
    }

    function misbehaviour(
        uint32 clientId,
        bytes calldata clientMessageBytes
    ) external override onlyIBC {
        Misbehaviour calldata m = clientMessageBytes.decodeMisbehaviour();
        ClientState storage clientState = clientStates[clientId];
        bool fraud =
            checkMisbehaviour(clientId, clientState, m.headerA, m.headerB);
        if (!fraud) {
            revert CometblsClientLib.ErrInvalidMisbehaviour();
        }
        // Similar to tendermint https://github.com/cosmos/ibc-go/blob/bbdcc8c6e965c8a2f607dfb2b61cd13712dd966a/modules/light-clients/07-tendermint/misbehaviour.go#L19
        clientState.frozenHeight = 1;
    }

    function checkMisbehaviour(
        uint32 clientId,
        ClientState storage clientState,
        Header calldata headerA,
        Header calldata headerB
    ) internal returns (bool) {
        // Ensures that A > B to simplify the misbehaviour of time violation check
        if (headerA.signedHeader.height < headerB.signedHeader.height) {
            revert CometblsClientLib.ErrInvalidMisbehaviourHeadersSequence();
        }

        ConsensusState storage consensusStateA =
            consensusStates[clientId][headerA.trustedHeight];
        ConsensusState storage consensusStateB =
            consensusStates[clientId][headerB.trustedHeight];

        // Check that the headers would have been accepted in an update
        (, uint64 untrustedTimestampA,) =
            verifyHeader(headerA, consensusStateA, clientState);
        (, uint64 untrustedTimestampB,) =
            verifyHeader(headerB, consensusStateB, clientState);

        if (headerA.signedHeader.height == headerB.signedHeader.height) {
            bytes32 hashA = keccak256(abi.encode(headerA.signedHeader));
            bytes32 hashB = keccak256(abi.encode(headerB.signedHeader));
            if (hashA != hashB) {
                // Misbehaviour of a fork
                return true;
            }
        } else {
            // Guarantee that A > B
            if (untrustedTimestampA <= untrustedTimestampB) {
                // Misbehaviour of time violation
                return true;
            }
        }
        return false;
    }

    function verifyHeader(
        Header calldata header,
        ConsensusState storage consensusState,
        ClientState storage clientState
    ) internal returns (uint64, uint64, bytes32) {
        if (consensusState.timestamp == 0) {
            revert CometblsClientLib.ErrTrustedConsensusStateNotFound();
        }

        uint64 untrustedHeightNumber = header.signedHeader.height;
        uint64 trustedHeightNumber = header.trustedHeight;
        if (untrustedHeightNumber <= trustedHeightNumber) {
            revert CometblsClientLib.ErrUntrustedHeightLTETrustedHeight();
        }

        uint64 trustedTimestamp = consensusState.timestamp;
        // Normalize to nanosecond because ibc-go recvPacket expects nanos...
        uint64 untrustedTimestamp =
            header.signedHeader.secs * 1e9 + header.signedHeader.nanos;
        if (untrustedTimestamp <= trustedTimestamp) {
            revert CometblsClientLib.ErrUntrustedTimestampLTETrustedTimestamp();
        }

        // Normalize to nanosecond because ibc-go recvPacket expects nanos...
        uint64 currentTime = uint64(block.timestamp * 1e9);
        if (
            CometblsClientLib.isExpired(
                untrustedTimestamp, clientState.trustingPeriod, currentTime
            )
        ) {
            revert CometblsClientLib.ErrHeaderExpired();
        }

        uint64 maxClockDrift = currentTime + clientState.maxClockDrift;
        if (untrustedTimestamp >= maxClockDrift) {
            revert CometblsClientLib.ErrMaxClockDriftExceeded();
        }

        /*
         We want to verify that 1/3 of trusted valset & 2/3 of untrusted valset signed.
         In adjacent verification, trusted vals = untrusted vals.
         In non adjacent verification, untrusted vals are coming from the untrusted header.
         */
        bytes32 trustedValidatorsHash = consensusState.nextValidatorsHash;
        bytes32 untrustedValidatorsHash;
        bool adjacent = untrustedHeightNumber == trustedHeightNumber + 1;
        if (adjacent) {
            if (header.signedHeader.validatorsHash != trustedValidatorsHash) {
                revert CometblsClientLib.ErrInvalidUntrustedValidatorsHash();
            }
        }

        bool ok = internalVerifyZKP(
            header.zeroKnowledgeProof,
            clientState.chainId,
            trustedValidatorsHash,
            header.signedHeader
        );
        if (!ok) {
            revert CometblsClientLib.ErrInvalidZKP();
        }

        return
            (untrustedHeightNumber, untrustedTimestamp, untrustedValidatorsHash);
    }

    function updateClient(
        uint32 clientId,
        bytes calldata clientMessageBytes
    ) external override onlyIBC returns (ConsensusStateUpdate memory) {
        ClientState storage clientState = clientStates[clientId];

        if (clientState.frozenHeight > 0) {
            revert CometblsClientLib.ErrClientFrozen();
        }

        Header calldata header = clientMessageBytes.decodeHeader();

        ConsensusState storage consensusState =
            consensusStates[clientId][header.trustedHeight];

        (uint64 untrustedHeightNumber, uint64 untrustedTimestamp,) =
            verifyHeader(header, consensusState, clientState);

        // Update states
        if (untrustedHeightNumber > clientState.latestHeight) {
            clientState.latestHeight = untrustedHeightNumber;
        }

        consensusState = consensusStates[clientId][untrustedHeightNumber];
        consensusState.timestamp = untrustedTimestamp;
        consensusState.appHash = header.signedHeader.appHash;
        consensusState.nextValidatorsHash =
            header.signedHeader.nextValidatorsHash;

        return ConsensusStateUpdate({
            clientStateCommitment: clientState.commit(),
            consensusStateCommitment: consensusState.commit(),
            height: untrustedHeightNumber
        });
    }

    function verifyMembership(
        uint32 clientId,
        uint64 height,
        bytes calldata proof,
        bytes calldata path,
        bytes calldata value
    ) external virtual returns (bool) {
        if (isFrozenImpl(clientId)) {
            revert CometblsClientLib.ErrClientFrozen();
        }
        bytes32 contractAddress = clientStates[clientId].contractAddress;
        bytes32 appHash = consensusStates[clientId][height].appHash;
        return ICS23MembershipVerifier.verifyMembership(
            appHash,
            proof,
            abi.encodePacked(IBCStoreLib.COMMITMENT_PREFIX),
            abi.encodePacked(
                IBCStoreLib.COMMITMENT_PREFIX_PATH, contractAddress, path
            ),
            value
        );
    }

    function verifyNonMembership(
        uint32 clientId,
        uint64 height,
        bytes calldata proof,
        bytes calldata path
    ) external virtual returns (bool) {
        if (isFrozenImpl(clientId)) {
            revert CometblsClientLib.ErrClientFrozen();
        }
        bytes32 contractAddress = clientStates[clientId].contractAddress;
        bytes32 appHash = consensusStates[clientId][height].appHash;
        return ICS23MembershipVerifier.verifyNonMembership(
            appHash,
            proof,
            abi.encodePacked(IBCStoreLib.COMMITMENT_PREFIX),
            abi.encodePacked(
                IBCStoreLib.COMMITMENT_PREFIX_PATH, contractAddress, path
            )
        );
    }

    function getClientState(
        uint32 clientId
    ) external view returns (bytes memory) {
        return clientStates[clientId].encodeMemory();
    }

    function getConsensusState(
        uint32 clientId,
        uint64 height
    ) external view returns (bytes memory) {
        return consensusStates[clientId][height].encodeMemory();
    }

    function getTimestampAtHeight(
        uint32 clientId,
        uint64 height
    ) external view override returns (uint64) {
        return consensusStates[clientId][height].timestamp;
    }

    function getLatestHeight(
        uint32 clientId
    ) external view override returns (uint64) {
        return clientStates[clientId].latestHeight;
    }

    function isFrozen(
        uint32 clientId
    ) external view virtual returns (bool) {
        return isFrozenImpl(clientId);
    }

    function isFrozenImpl(
        uint32 clientId
    ) internal view returns (bool) {
        return clientStates[clientId].frozenHeight > 0;
    }

    // ZKP VERIFICATION
    uint256 constant PRIME_R =
        21888242871839275222246405745257275088548364400416034343698204186575808495617;
    uint256 constant PRIME_R_MINUS_ONE = PRIME_R - 1;

    bytes constant HMAC_I =
        hex"75595B5342747A653636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636";
    bytes constant HMAC_O =
        hex"1F333139281E100F5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C5C";

    function hmac_keccak(
        bytes memory message
    ) internal pure returns (bytes32) {
        return keccak256(
            abi.encodePacked(
                HMAC_O, keccak256(abi.encodePacked(HMAC_I, message))
            )
        );
    }

    // Union whitepaper: (1) H_{hmac_r}
    function hashToField(
        bytes memory message
    ) internal pure returns (uint256) {
        return (uint256(hmac_keccak(message)) % PRIME_R_MINUS_ONE) + 1;
    }

    struct ZKP {
        uint256[8] proof;
        uint256[2] proofCommitment;
        uint256[2] proofCommitmentPOK;
    }

    function verifyZKP(
        bytes calldata zkpBytes,
        bytes31 chainId,
        bytes32 trustedValidatorsHash,
        SignedHeader calldata header
    ) public virtual returns (bool) {
        return
            internalVerifyZKP(zkpBytes, chainId, trustedValidatorsHash, header);
    }

    function internalVerifyZKP(
        bytes calldata zkpBytes,
        bytes31 chainId,
        bytes32 trustedValidatorsHash,
        SignedHeader calldata header
    ) internal virtual returns (bool) {
        ZKP calldata zkp;
        assembly {
            zkp := zkpBytes.offset
        }

        uint256 commitmentHash =
            hashToField(abi.encodePacked(zkp.proofCommitment));

        // Drop the most significant byte to fit in F_r
        bytes32 inputsHash = sha256(
            abi.encodePacked(
                bytes32(uint256(uint248(chainId))),
                bytes32(uint256(header.height)),
                bytes32(uint256(header.secs)),
                bytes32(uint256(header.nanos)),
                header.validatorsHash,
                header.nextValidatorsHash,
                header.appHash,
                trustedValidatorsHash
            )
        ) & 0x00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;

        uint256[2] memory publicInputs = [
            uint256(inputsHash),
            // Gnark commitment API extend internal inputs with the following commitment hash and proof commitment
            // See https://github.com/ConsenSys/gnark/issues/652
            commitmentHash
        ];

        return Verifier.verifyProof(
            zkp.proof, zkp.proofCommitment, zkp.proofCommitmentPOK, publicInputs
        );
    }

    function _authorizeUpgrade(
        address newImplementation
    ) internal override onlyOwner {}

    function _onlyIBC() internal view {
        if (msg.sender != ibcHandler) {
            revert CometblsClientLib.ErrNotIBC();
        }
    }

    modifier onlyIBC() {
        _onlyIBC();
        _;
    }
}

File 2 of 22 : Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

File 3 of 22 : UUPSUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.20;

import {IERC1822Proxiable} from "@openzeppelin/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC1967-compliant implementation pointing to self.
     * See {_onlyProxy}.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}

File 4 of 22 : OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        OwnableStorage storage $ = _getOwnableStorage();
        return $._owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        OwnableStorage storage $ = _getOwnableStorage();
        address oldOwner = $._owner;
        $._owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 5 of 22 : PausableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Pausable
    struct PausableStorage {
        bool _paused;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;

    function _getPausableStorage() private pure returns (PausableStorage storage $) {
        assembly {
            $.slot := PausableStorageLocation
        }
    }

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        PausableStorage storage $ = _getPausableStorage();
        return $._paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
        emit Unpaused(_msgSender());
    }
}

File 6 of 22 : ICS23MembershipVerifier.sol
pragma solidity ^0.8.27;

import "../lib/ICS23.sol";
import "../lib/UnionICS23.sol";

library ICS23MembershipVerifier {
    function verifyMembership(
        bytes32 root,
        bytes calldata proof,
        bytes memory prefix,
        bytes memory path,
        bytes calldata value
    ) internal pure returns (bool) {
        UnionIcs23.ExistenceProof[2] calldata existenceProof;
        assembly {
            existenceProof := proof.offset
        }
        return Ics23.verifyChainedMembership(
            existenceProof, root, prefix, path, value
        ) == Ics23.VerifyChainedMembershipError.None;
    }

    struct NonMembershipProof {
        UnionIcs23.NonExistenceProof nonexist;
        UnionIcs23.ExistenceProof exist;
    }

    function verifyNonMembership(
        bytes32 root,
        bytes calldata proof,
        bytes memory prefix,
        bytes memory path
    ) internal pure returns (bool) {
        NonMembershipProof calldata nonexistenceProof;
        assembly {
            nonexistenceProof := proof.offset
        }
        return Ics23.verifyChainedNonMembership(
            nonexistenceProof.nonexist,
            nonexistenceProof.exist,
            root,
            prefix,
            path
        ) == Ics23.VerifyChainedNonMembershipError.None;
    }
}

File 7 of 22 : Verifier.sol
pragma solidity ^0.8.27;

/// @title Groth16 verifier template.
/// @author Remco Bloemen
/// @notice Supports verifying Groth16 proofs. Proofs can be in uncompressed
/// (256 bytes) and compressed (128 bytes) format.
library Verifier {
    // Addresses of precompiles
    uint256 constant PRECOMPILE_MODEXP = 0x05;
    uint256 constant PRECOMPILE_ADD = 0x06;
    uint256 constant PRECOMPILE_MUL = 0x07;
    uint256 constant PRECOMPILE_VERIFY = 0x08;

    // Base field Fp order P and scalar field Fr order R.
    // For BN254 these are computed as follows:
    //     t = 4965661367192848881
    //     P = 36⋅t⁴ + 36⋅t³ + 24⋅t² + 6⋅t + 1
    //     R = 36⋅t⁴ + 36⋅t³ + 18⋅t² + 6⋅t + 1
    uint256 constant P =
        0x30644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd47;
    uint256 constant R =
        0x30644e72e131a029b85045b68181585d2833e84879b9709143e1f593f0000001;

    // Extension field Fp2 = Fp[i] / (i² + 1)
    // Note: This is the complex extension field of Fp with i² = -1.
    //       Values in Fp2 are represented as a pair of Fp elements (a₀, a₁) as a₀ + a₁⋅i.
    // Note: The order of Fp2 elements is *opposite* that of the pairing contract, which
    //       expects Fp2 elements in order (a₁, a₀). This is also the order in which
    //       Fp2 elements are encoded in the public interface as this became convention.

    // Constants in Fp
    uint256 constant FRACTION_1_2_FP =
        0x183227397098d014dc2822db40c0ac2ecbc0b548b438e5469e10460b6c3e7ea4;
    uint256 constant FRACTION_27_82_FP =
        0x2b149d40ceb8aaae81be18991be06ac3b5b4c5e559dbefa33267e6dc24a138e5;
    uint256 constant FRACTION_3_82_FP =
        0x2fcd3ac2a640a154eb23960892a85a68f031ca0c8344b23a577dcf1052b9e775;

    // Exponents for inversions and square roots mod P
    uint256 constant EXP_INVERSE_FP =
        0x30644E72E131A029B85045B68181585D97816A916871CA8D3C208C16D87CFD45; // P - 2
    uint256 constant EXP_SQRT_FP =
        0xC19139CB84C680A6E14116DA060561765E05AA45A1C72A34F082305B61F3F52; // (P + 1) / 4;

    // Verifying key
    uint256 constant ALPHA_X =
        0x245229d9b076b3c0e8a4d70bde8c1cccffa08a9fae7557b165b3b0dbd653e2c7;
    uint256 constant ALPHA_Y =
        0x253ec85988dbb84e46e94b5efa3373b47a000b4ac6c86b2d4b798d274a182302;
    uint256 constant BETA_NEG_X_0 =
        0x2424bcc1f60a5472685fd50705b2809626e170120acaf441e133a2bd5e61d244;
    uint256 constant BETA_NEG_X_1 =
        0x07090a82e8fabbd39299be24705b92cf208ee8b3487f6f2b39ff27978a29a1db;
    uint256 constant BETA_NEG_Y_0 =
        0x04ddc8d30d5c438ca34091c5d2c6ded571382cba2b3c4fdc4222df2938b4e51e;
    uint256 constant BETA_NEG_Y_1 =
        0x25833b15e156ae01f2741f4f4120ddb466c52eb83a959f79eb99b23caa7fbf1d;
    uint256 constant GAMMA_NEG_X_0 =
        0x1800deef121f1e76426a00665e5c4479674322d4f75edadd46debd5cd992f6ed;
    uint256 constant GAMMA_NEG_X_1 =
        0x198e9393920d483a7260bfb731fb5d25f1aa493335a9e71297e485b7aef312c2;
    uint256 constant GAMMA_NEG_Y_0 =
        0x1d9befcd05a5323e6da4d435f3b617cdb3af83285c2df711ef39c01571827f9d;
    uint256 constant GAMMA_NEG_Y_1 =
        0x275dc4a288d1afb3cbb1ac09187524c7db36395df7be3b99e673b13a075a65ec;
    uint256 constant DELTA_NEG_X_0 =
        0x02aca5d2a73f8d34e4b26eee3932365e6526c8d5e2f3347d679c2cb1867104dc;
    uint256 constant DELTA_NEG_X_1 =
        0x07b8dbefa90bde075a26318e5066db729155514e3c06b888d4e03c56d82c97e6;
    uint256 constant DELTA_NEG_Y_0 =
        0x1696ccafaefe49a5d8bad8e79630e19b25e5392a203aff0042d0216f254806f5;
    uint256 constant DELTA_NEG_Y_1 =
        0x2edb19cbb2b6ad0c98fdd7d1845500c26e497dc35e4cdc1cb02cc65dc4ba1bf2;
    uint256 constant CONSTANT_X =
        0x2f5d8a3817f21d3e453573c90c3cc47b7ff235fad7bdfbd59bbd6ae5d153273e;
    uint256 constant CONSTANT_Y =
        0x147fa22142b1fd86ce75fc87230a0feac8765d02938784dcfc828d17d7e7c432;
    uint256 constant PUB_0_X =
        0x2a81b98e1c997bd01a20893a08a46c6804493e838c1a0ff6c8c069ef5ab66b9a;
    uint256 constant PUB_0_Y =
        0x276938ada8075cec20d4d6a1f157ec94cc7ba6207c98576e98c1ad9d6378fb6f;
    uint256 constant PUB_1_X =
        0x179496ce140df89ce35c5ee7fb496efdffda5e5d3b95ff9116e2e5df96b36ab7;
    uint256 constant PUB_1_Y =
        0x0326e7d44688ce5903676b7d646e46a5938c8e5fd8cd54e4d5aa3300649f3cfc;
    uint256 constant PEDERSEN_G_X_0 =
        0x1800deef121f1e76426a00665e5c4479674322d4f75edadd46debd5cd992f6ed;
    uint256 constant PEDERSEN_G_X_1 =
        0x198e9393920d483a7260bfb731fb5d25f1aa493335a9e71297e485b7aef312c2;
    uint256 constant PEDERSEN_G_Y_0 =
        0x12c85ea5db8c6deb4aab71808dcb408fe3d1e7690c43d37b4ce6cc0166fa7daa;
    uint256 constant PEDERSEN_G_Y_1 =
        0x090689d0585ff075ec9e99ad690c3395bc4b313370b38ef355acdadcd122975b;
    uint256 constant PEDERSEN_G_ROOT_SIGMA_NEG_X_0 =
        0x02aca5d2a73f8d34e4b26eee3932365e6526c8d5e2f3347d679c2cb1867104dc;
    uint256 constant PEDERSEN_G_ROOT_SIGMA_NEG_X_1 =
        0x07b8dbefa90bde075a26318e5066db729155514e3c06b888d4e03c56d82c97e6;
    uint256 constant PEDERSEN_G_ROOT_SIGMA_NEG_Y_0 =
        0x1696ccafaefe49a5d8bad8e79630e19b25e5392a203aff0042d0216f254806f5;
    uint256 constant PEDERSEN_G_ROOT_SIGMA_NEG_Y_1 =
        0x2edb19cbb2b6ad0c98fdd7d1845500c26e497dc35e4cdc1cb02cc65dc4ba1bf2;

    /// Compute the public input linear combination.
    /// @notice Reverts with PublicInputNotInField if the input is not in the field.
    /// @notice Computes the multi-scalar-multiplication of the public input
    /// elements and the verification key including the constant term.
    /// @param input The public inputs. These are elements of the scalar field Fr.
    /// @return success the result of the msm.
    /// @return x The X coordinate of the resulting G1 point.
    /// @return y The Y coordinate of the resulting G1 point.
    function publicInputMSM(
        uint256[2] calldata proofCommitment,
        uint256[2] memory input
    ) internal view returns (bool success, uint256 x, uint256 y) {
        // Note: The ECMUL precompile does not reject unreduced values, so we check this.
        // Note: Unrolling this loop does not cost much extra in code-size, the bulk of the
        //       code-size is in the PUB_ constants.
        // ECMUL has input (x, y, scalar) and output (x', y').
        // ECADD has input (x1, y1, x2, y2) and output (x', y').
        // We call them such that ecmul output is already in the second point
        // argument to ECADD so we can have a tight loop.
        success = true;
        assembly ("memory-safe") {
            let f := mload(0x40)
            let g := add(f, 0x40)
            let s
            mstore(f, CONSTANT_X)
            mstore(add(f, 0x20), CONSTANT_Y)

            // Add the proof commitment
            calldatacopy(g, proofCommitment, 0x40)
            success :=
                and(success, staticcall(gas(), PRECOMPILE_ADD, f, 0x80, f, 0x40))

            mstore(g, PUB_0_X)
            mstore(add(g, 0x20), PUB_0_Y)
            s := mload(input)
            mstore(add(g, 0x40), s)
            success := and(success, lt(s, R))
            success :=
                and(success, staticcall(gas(), PRECOMPILE_MUL, g, 0x60, g, 0x40))
            success :=
                and(success, staticcall(gas(), PRECOMPILE_ADD, f, 0x80, f, 0x40))
            mstore(g, PUB_1_X)
            mstore(add(g, 0x20), PUB_1_Y)
            s := mload(add(input, 32))
            mstore(add(g, 0x40), s)
            success := and(success, lt(s, R))
            success :=
                and(success, staticcall(gas(), PRECOMPILE_MUL, g, 0x60, g, 0x40))
            success :=
                and(success, staticcall(gas(), PRECOMPILE_ADD, f, 0x80, f, 0x40))
            x := mload(f)
            y := mload(add(f, 0x20))
        }
    }

    function verifyProofCommitmentPOK(
        uint256[2] calldata proofCommitment,
        uint256[2] calldata proofCommitmentPOK
    ) internal view returns (bool) {
        bool success = true;
        assembly ("memory-safe") {
            let f := mload(0x40)
            calldatacopy(f, proofCommitment, 0x40)
            mstore(add(f, 0x40), PEDERSEN_G_X_1)
            mstore(add(f, 0x60), PEDERSEN_G_X_0)
            mstore(add(f, 0x80), PEDERSEN_G_Y_1)
            mstore(add(f, 0xA0), PEDERSEN_G_Y_0)
            calldatacopy(add(f, 0xC0), proofCommitmentPOK, 0x40)
            mstore(add(f, 0x100), PEDERSEN_G_ROOT_SIGMA_NEG_X_1)
            mstore(add(f, 0x120), PEDERSEN_G_ROOT_SIGMA_NEG_X_0)
            mstore(add(f, 0x140), PEDERSEN_G_ROOT_SIGMA_NEG_Y_1)
            mstore(add(f, 0x160), PEDERSEN_G_ROOT_SIGMA_NEG_Y_0)
            success := staticcall(gas(), PRECOMPILE_VERIFY, f, 0x180, f, 0x20)
            success := and(success, mload(f))
        }
        return success;
    }

    /// Verify an uncompressed Groth16 proof.
    /// @notice Reverts with InvalidProof if the proof is invalid or
    /// with PublicInputNotInField the public input is not reduced.
    /// @notice There is no return value. If the function does not revert, the
    /// proof was successfully verified.
    /// @param proof the points (A, B, C) in EIP-197 format matching the output
    /// of compressProof.
    /// @param input the public input field elements in the scalar field Fr.
    /// Elements must be reduced.
    function verifyProof(
        uint256[8] calldata proof,
        uint256[2] calldata proofCommitment,
        uint256[2] calldata proofCommitmentPOK,
        uint256[2] memory input
    ) internal view returns (bool) {
        (bool success, uint256 x, uint256 y) =
            publicInputMSM(proofCommitment, input);
        if (!success) {
            return false;
        }

        if (!verifyProofCommitmentPOK(proofCommitment, proofCommitmentPOK)) {
            return false;
        }

        // Note: The precompile expects the F2 coefficients in big-endian order.
        // Note: The pairing precompile rejects unreduced values, so we won't check that here.
        assembly ("memory-safe") {
            let f := mload(0x40) // Free memory pointer.

            // Copy points (A, B, C) to memory. They are already in correct encoding.
            // This is pairing e(A, B) and G1 of e(C, -δ).
            calldatacopy(f, proof, 0x100)

            // Complete e(C, -δ) and write e(α, -β), e(L_pub, -γ) to memory.
            // OPT: This could be better done using a single codecopy, but
            //      Solidity (unlike standalone Yul) doesn't provide a way to
            //      to do this.
            mstore(add(f, 0x100), DELTA_NEG_X_1)
            mstore(add(f, 0x120), DELTA_NEG_X_0)
            mstore(add(f, 0x140), DELTA_NEG_Y_1)
            mstore(add(f, 0x160), DELTA_NEG_Y_0)
            mstore(add(f, 0x180), ALPHA_X)
            mstore(add(f, 0x1a0), ALPHA_Y)
            mstore(add(f, 0x1c0), BETA_NEG_X_1)
            mstore(add(f, 0x1e0), BETA_NEG_X_0)
            mstore(add(f, 0x200), BETA_NEG_Y_1)
            mstore(add(f, 0x220), BETA_NEG_Y_0)
            mstore(add(f, 0x240), x)
            mstore(add(f, 0x260), y)
            mstore(add(f, 0x280), GAMMA_NEG_X_1)
            mstore(add(f, 0x2a0), GAMMA_NEG_X_0)
            mstore(add(f, 0x2c0), GAMMA_NEG_Y_1)
            mstore(add(f, 0x2e0), GAMMA_NEG_Y_0)

            // Check pairing equation.
            success := staticcall(gas(), PRECOMPILE_VERIFY, f, 0x300, f, 0x20)
            // Also check returned value (both are either 1 or 0).
            success := and(success, mload(f))
        }
        return success;
    }
}

File 8 of 22 : ILightClient.sol
pragma solidity ^0.8.27;

import "../Types.sol";

struct ConsensusStateUpdate {
    bytes32 clientStateCommitment;
    bytes32 consensusStateCommitment;
    uint64 height;
}

/**
 * @dev This defines an interface for Light Client contract can be integrated with ibc-solidity.
 * You can register the Light Client contract that implements this through `registerClient` on IBCHandler.
 */
interface ILightClient {
    /**
     * @dev createClient creates a new client with the given state.
     * If succeeded, it returns a commitment for the initial state.
     */
    function createClient(
        uint32 clientId,
        bytes calldata clientStateBytes,
        bytes calldata consensusStateBytes
    ) external returns (ConsensusStateUpdate memory update);

    /**
     * @dev getTimestampAtHeight returns the timestamp of the consensus state at the given height.
     */
    function getTimestampAtHeight(
        uint32 clientId,
        uint64 height
    ) external view returns (uint64);

    /**
     * @dev getLatestHeight returns the latest height of the client state corresponding to `clientId`.
     */
    function getLatestHeight(
        uint32 clientId
    ) external view returns (uint64 height);

    /**
     * @dev updateClient updates the client corresponding to `clientId`.
     * If succeeded, it returns a commitment for the updated state.
     * If there are no updates for consensus state, this function should returns an empty array as `updates`.
     *
     * NOTE: updateClient is intended to perform the followings:
     * 1. verify a given client message(e.g. header)
     * 2. check misbehaviour such like duplicate block height
     * 3. if misbehaviour is found, update state accordingly and return
     * 4. update state(s) with the client message
     * 5. persist the state(s) on the host
     */
    function updateClient(
        uint32 clientId,
        bytes calldata clientMessageBytes
    ) external returns (ConsensusStateUpdate memory update);

    /**
     * @dev misbehaviour is used for submitting a misbehaviour to `clientId`.
     * If succeeded, the client should freeze itself to prevent getting further updates.
     */
    function misbehaviour(
        uint32 clientId,
        bytes calldata clientMessageBytes
    ) external;

    /**
     * @dev verifyMembership is a generic proof verification method which verifies a proof of the existence of a value at a given CommitmentPath at the specified height.
     * The caller is expected to construct the full CommitmentPath from a CommitmentPrefix and a standardized path (as defined in ICS 24).
     */
    function verifyMembership(
        uint32 clientId,
        uint64 height,
        bytes calldata proof,
        bytes calldata path,
        bytes calldata value
    ) external returns (bool);

    /**
     * @dev verifyNonMembership is a generic proof verification method which verifies the absence of a given CommitmentPath at a specified height.
     * The caller is expected to construct the full CommitmentPath from a CommitmentPrefix and a standardized path (as defined in ICS 24).
     */
    function verifyNonMembership(
        uint32 clientId,
        uint64 height,
        bytes calldata proof,
        bytes calldata path
    ) external returns (bool);

    /**
     * @dev getClientState returns the clientState corresponding to `clientId`.
     */
    function getClientState(
        uint32 clientId
    ) external view returns (bytes memory);

    /**
     * @dev getConsensusState returns the consensusState corresponding to `clientId` and `height`.
     */
    function getConsensusState(
        uint32 clientId,
        uint64 height
    ) external view returns (bytes memory);

    /**
     * @dev isFrozen returns whether the `clientId` is frozen or not.
     */
    function isFrozen(
        uint32 clientId
    ) external view returns (bool);
}

File 9 of 22 : IBCStore.sol
pragma solidity ^0.8.27;

import "../02-client/ILightClient.sol";
import "../05-port/IIBCModule.sol";
import "../Types.sol";

library IBCStoreLib {
    string public constant COMMITMENT_PREFIX = "wasm";
    bytes1 public constant COMMITMENT_PREFIX_PATH = 0x03;
}

abstract contract IBCStore {
    // Commitments
    // keccak256(IBC-compatible-store-path) => keccak256(IBC-compatible-commitment)
    mapping(bytes32 => bytes32) public commitments;

    // ClientType -> Address
    mapping(string => address) public clientRegistry;
    // ClientId -> ClientType
    mapping(uint32 => string) public clientTypes;
    // ClientId -> Address
    mapping(uint32 => address) public clientImpls;
    // ConnectionId -> Connection
    mapping(uint32 => IBCConnection) public connections;
    // ChannelId -> Channel
    mapping(uint32 => IBCChannel) public channels;
    // ChannelId -> PortId
    mapping(uint32 => address) public channelOwner;

    // Sequences for identifier
    bytes32 constant nextClientSequencePath = keccak256("nextClientSequence");
    bytes32 constant nextConnectionSequencePath =
        keccak256("nextConnectionSequence");
    bytes32 constant nextChannelSequencePath = keccak256("nextChannelSequence");

    function getClient(
        uint32 clientId
    ) public view returns (ILightClient) {
        return getClientInternal(clientId);
    }

    function getClientInternal(
        uint32 clientId
    ) internal view returns (ILightClient) {
        address clientImpl = clientImpls[clientId];
        if (clientImpl == address(0)) {
            revert IBCErrors.ErrClientNotFound();
        }
        return ILightClient(clientImpl);
    }

    function lookupModuleByChannel(
        uint32 channelId
    ) internal view virtual returns (IIBCModule) {
        address module = channelOwner[channelId];
        if (module == address(0)) {
            revert IBCErrors.ErrModuleNotFound();
        }
        return IIBCModule(module);
    }

    function claimChannel(address portId, uint32 channelId) internal {
        channelOwner[channelId] = portId;
    }

    function authenticateChannelOwner(
        uint32 channelId
    ) internal view returns (bool) {
        return msg.sender == channelOwner[channelId];
    }

    function ensureConnectionState(
        uint32 connectionId
    ) internal view returns (uint32) {
        IBCConnection storage connection = connections[connectionId];
        if (connection.state != IBCConnectionState.Open) {
            revert IBCErrors.ErrInvalidConnectionState();
        }
        return connection.clientId;
    }

    function ensureChannelState(
        uint32 channelId
    ) internal view returns (IBCChannel storage) {
        IBCChannel storage channel = channels[channelId];
        if (channel.state != IBCChannelState.Open) {
            revert IBCErrors.ErrInvalidChannelState();
        }
        return channel;
    }
}

File 10 of 22 : IBCCommitment.sol
pragma solidity ^0.8.27;

library IBCCommitment {
    uint256 public constant CLIENT_STATE = 0x00;
    uint256 public constant CONSENSUS_STATE = 0x01;
    uint256 public constant CONNECTIONS = 0x02;
    uint256 public constant CHANNELS = 0x03;
    uint256 public constant PACKETS = 0x04;
    uint256 public constant PACKET_ACKS = 0x05;

    function clientStatePath(
        uint32 clientId
    ) internal pure returns (bytes memory) {
        return abi.encode(CLIENT_STATE, clientId);
    }

    function consensusStatePath(
        uint32 clientId,
        uint64 height
    ) internal pure returns (bytes memory) {
        return abi.encode(CONSENSUS_STATE, clientId, height);
    }

    function connectionPath(
        uint32 connectionId
    ) internal pure returns (bytes memory) {
        return abi.encode(CONNECTIONS, connectionId);
    }

    function channelPath(
        uint32 channelId
    ) internal pure returns (bytes memory) {
        return abi.encode(CHANNELS, channelId);
    }

    function batchPacketsCommitmentPath(
        uint32 channelId,
        bytes32 batchHash
    ) internal pure returns (bytes memory) {
        return abi.encode(PACKETS, channelId, batchHash);
    }

    function batchReceiptsCommitmentPath(
        uint32 channelId,
        bytes32 batchHash
    ) internal pure returns (bytes memory) {
        return abi.encode(PACKET_ACKS, channelId, batchHash);
    }

    // Key generators for Commitment mapping

    function clientStateCommitmentKey(
        uint32 clientId
    ) internal pure returns (bytes32) {
        return keccak256(clientStatePath(clientId));
    }

    function consensusStateCommitmentKey(
        uint32 clientId,
        uint64 height
    ) internal pure returns (bytes32) {
        return keccak256(consensusStatePath(clientId, height));
    }

    function connectionCommitmentKey(
        uint32 connectionId
    ) internal pure returns (bytes32) {
        return keccak256(connectionPath(connectionId));
    }

    function channelCommitmentKey(
        uint32 channelId
    ) internal pure returns (bytes32) {
        return keccak256(channelPath(channelId));
    }

    function batchPacketsCommitmentKey(
        uint32 channelId,
        bytes32 batchHash
    ) internal pure returns (bytes32) {
        return keccak256(batchPacketsCommitmentPath(channelId, batchHash));
    }

    function batchReceiptsCommitmentKey(
        uint32 channelId,
        bytes32 batchHash
    ) internal pure returns (bytes32) {
        return keccak256(batchReceiptsCommitmentPath(channelId, batchHash));
    }
}

File 11 of 22 : Common.sol
pragma solidity ^0.8.27;

struct ProcessedMoment {
    uint256 timestamp;
    uint256 height;
}

File 12 of 22 : ICS23.sol
pragma solidity ^0.8.27;

import {Math} from "@openzeppelin/utils/math/Math.sol";
import "./UnionICS23.sol";

library Ics23 {
    enum VerifyChainedNonMembershipError {
        None,
        NonExistenceProofIsNil,
        ExistenceProofIsNil,
        InvalidProofRoot,
        KeyMismatch,
        ValueMismatch,
        InvalidSpec,
        InvalidIntermediateProofRoot,
        IntermateProofRootMismatch,
        RootMismatch,
        VerifyLeft,
        VerifyRight,
        LeftAndRightKeyEmpty,
        RightKeyRange,
        LeftKeyRange,
        RightProofLeftMost,
        LeftProofRightMost,
        IsLeftNeighbor
    }

    function verifyChainedNonMembership(
        UnionIcs23.NonExistenceProof calldata nonExistProof,
        UnionIcs23.ExistenceProof calldata existProof,
        bytes32 root,
        bytes memory prefix,
        bytes memory key
    ) internal pure returns (VerifyChainedNonMembershipError) {
        (bytes32 subroot, Proof.CalculateRootError rCode) =
            Proof.calculateRoot(nonExistProof);
        if (rCode != Proof.CalculateRootError.None) {
            return VerifyChainedNonMembershipError.InvalidProofRoot;
        }

        Proof.VerifyNonExistenceError vCode = Proof.verify(
            nonExistProof, UnionIcs23.getIavlProofSpec(), subroot, key
        );

        // Map non existence error to non membership error
        if (vCode != Proof.VerifyNonExistenceError.None) {
            if (vCode == Proof.VerifyNonExistenceError.VerifyLeft) {
                return VerifyChainedNonMembershipError.VerifyLeft;
            } else if (
                vCode == Proof.VerifyNonExistenceError.LeftAndRightKeyEmpty
            ) {
                return VerifyChainedNonMembershipError.LeftAndRightKeyEmpty;
            } else if (vCode == Proof.VerifyNonExistenceError.RightKeyRange) {
                return VerifyChainedNonMembershipError.RightKeyRange;
            } else if (vCode == Proof.VerifyNonExistenceError.LeftKeyRange) {
                return VerifyChainedNonMembershipError.LeftKeyRange;
            } else if (
                vCode == Proof.VerifyNonExistenceError.RightProofLeftMost
            ) {
                return VerifyChainedNonMembershipError.RightProofLeftMost;
            } else if (
                vCode == Proof.VerifyNonExistenceError.LeftProofRightMost
            ) {
                return VerifyChainedNonMembershipError.LeftProofRightMost;
            } else if (vCode == Proof.VerifyNonExistenceError.IsLeftNeighbor) {
                return VerifyChainedNonMembershipError.IsLeftNeighbor;
            }

            revert(
                "verifyChainedNonMembership: non exhaustive pattern matching on VerifyNonExistenceError"
            );
        }

        bytes32 subroot2;
        (subroot2, rCode) = Proof.calculateRoot(existProof);
        if (rCode != Proof.CalculateRootError.None) {
            return VerifyChainedNonMembershipError.InvalidProofRoot;
        }

        // We don't want the above root calculation to be done again. Since we calculated it, we also don't
        // need to check it against anything.
        Proof.VerifyExistenceError mCode = Proof.verifyNoRootCheck(
            existProof,
            UnionIcs23.getTendermintProofSpec(),
            prefix,
            abi.encodePacked(subroot)
        );

        if (mCode != Proof.VerifyExistenceError.None) {
            if (mCode == Proof.VerifyExistenceError.KeyNotMatching) {
                return VerifyChainedNonMembershipError.KeyMismatch;
            } else if (mCode == Proof.VerifyExistenceError.ValueNotMatching) {
                return VerifyChainedNonMembershipError.ValueMismatch;
            } else if (mCode == Proof.VerifyExistenceError.CheckSpec) {
                return VerifyChainedNonMembershipError.InvalidSpec;
            } else if (mCode == Proof.VerifyExistenceError.CalculateRoot) {
                return
                    VerifyChainedNonMembershipError.InvalidIntermediateProofRoot;
            } else if (mCode == Proof.VerifyExistenceError.RootNotMatching) {
                return
                    VerifyChainedNonMembershipError.IntermateProofRootMismatch;
            }
            revert(
                "verifyChainedNonMembership: non exhaustive pattern matching on VerifyNonExistenceError"
            );
        }

        if (root != subroot2) {
            return VerifyChainedNonMembershipError.RootMismatch;
        }

        return VerifyChainedNonMembershipError.None;
    }

    enum VerifyChainedMembershipError {
        None,
        ExistenceProofIsNil,
        InvalidProofRoot,
        KeyMismatch,
        ValueMismatch,
        InvalidSpec,
        InvalidIntermediateProofRoot,
        IntermateProofRootMismatch,
        RootMismatch
    }

    function verifyChainedMembership(
        UnionIcs23.ExistenceProof[2] calldata proofs,
        bytes32 root,
        bytes memory prefix,
        bytes memory key,
        bytes calldata value
    ) internal pure returns (VerifyChainedMembershipError) {
        (bytes32 subroot, Proof.CalculateRootError rCode) =
            Proof.calculateRoot(proofs[0]);
        if (rCode != Proof.CalculateRootError.None) {
            return VerifyChainedMembershipError.InvalidProofRoot;
        }

        // We don't want the above root calculation to be done again. Since we calculated it, we also don't
        // need to check it against anything.
        Proof.VerifyExistenceError vCode = Proof.verifyNoRootCheck(
            proofs[0], UnionIcs23.getIavlProofSpec(), key, value
        );
        if (vCode != Proof.VerifyExistenceError.None) {
            return convertExistenceError(vCode);
        }

        // This will check whether the calculated root of `proofs[1]` matches the `root`
        vCode = Proof.verify(
            proofs[1],
            UnionIcs23.getTendermintProofSpec(),
            root,
            prefix,
            abi.encodePacked(subroot)
        );

        if (vCode != Proof.VerifyExistenceError.None) {
            return convertExistenceError(vCode);
        }

        return VerifyChainedMembershipError.None;
    }

    function convertExistenceError(
        Proof.VerifyExistenceError vCode
    ) internal pure returns (VerifyChainedMembershipError) {
        if (vCode == Proof.VerifyExistenceError.KeyNotMatching) {
            return VerifyChainedMembershipError.KeyMismatch;
        } else if (vCode == Proof.VerifyExistenceError.ValueNotMatching) {
            return VerifyChainedMembershipError.ValueMismatch;
        } else if (vCode == Proof.VerifyExistenceError.CheckSpec) {
            return VerifyChainedMembershipError.InvalidSpec;
        } else if (vCode == Proof.VerifyExistenceError.CalculateRoot) {
            return VerifyChainedMembershipError.InvalidIntermediateProofRoot;
        } else if (vCode == Proof.VerifyExistenceError.RootNotMatching) {
            return VerifyChainedMembershipError.IntermateProofRootMismatch;
        }

        revert(
            "verifyChainedMembership: non exhaustive pattern matching on VerifyExistenceError"
        );
    }

    function isLeft(
        UnionIcs23.ExistenceProof calldata left,
        bytes calldata key
    ) private pure returns (bool) {
        // CosmosIcs23V1ExistenceProof.isNil does not work
        return UnionIcs23.empty(left) || Ops.compare(left.key, key) < 0;
    }

    function isRight(
        UnionIcs23.ExistenceProof calldata right,
        bytes calldata key
    ) private pure returns (bool) {
        // CosmosIcs23V1ExistenceProof.isNil does not work
        return UnionIcs23.empty(right) || Ops.compare(right.key, key) > 0;
    }
}

library Ops {
    enum ApplyLeafOpError {
        None,
        KeyLength,
        ValueLength
    }

    function _sz_varint(
        uint256 i
    ) internal pure returns (uint256) {
        uint256 count = 1;
        assembly {
            i := shr(7, i)
            for {} gt(i, 0) {} {
                i := shr(7, i)
                count := add(count, 1)
            }
        }
        return count;
    }

    function _encode_varint(
        uint256 x,
        uint256 p,
        bytes memory bs
    ) internal pure returns (uint256) {
        /**
         * Refer to https://developers.google.com/protocol-buffers/docs/encoding
         */
        uint256 sz = 0;
        assembly {
            let bsptr := add(bs, p)
            let byt := and(x, 0x7f)
            for {} gt(shr(7, x), 0) {} {
                mstore8(bsptr, or(0x80, byt))
                bsptr := add(bsptr, 1)
                sz := add(sz, 1)
                x := shr(7, x)
                byt := and(x, 0x7f)
            }
            mstore8(bsptr, byt)
            sz := add(sz, 1)
        }
        return sz;
    }

    // LeafOp operations
    function applyLeafOp(
        bytes calldata prefix,
        bytes calldata key,
        bytes calldata value
    ) internal pure returns (bytes32, ApplyLeafOpError) {
        //require(key.length > 0); // dev: Leaf op needs key
        if (key.length == 0) return ("", ApplyLeafOpError.KeyLength);
        //require(value.length > 0); // dev: Leaf op needs value
        if (value.length == 0) return ("", ApplyLeafOpError.ValueLength);

        // tm/iavl specs set hashOp for prehash_key to NOOP and lengthOp to VAR_PROTO
        bytes memory encodedKey = new bytes(_sz_varint(key.length));
        _encode_varint(key.length, 32, encodedKey);

        // tm/iavl specs set hashOp for prehash_value to SHA256 and lengthOp to VAR_PROTO
        bytes32 hashedValue = sha256(value);
        bytes memory encodedValue = new bytes(_sz_varint(32));
        _encode_varint(32, 32, encodedValue);

        bytes32 data = sha256(
            abi.encodePacked(prefix, encodedKey, key, encodedValue, hashedValue)
        );
        return (data, ApplyLeafOpError.None);
    }

    enum CheckAgainstSpecError {
        None,
        MinPrefixLength,
        HasPrefix,
        MaxPrefixLength
    }

    enum ApplyInnerOpError {
        None,
        ChildLength,
        DoHash
    }

    // InnerOp operations
    function applyOp(
        UnionIcs23.InnerOp calldata innerOp,
        bytes32 child
    ) internal pure returns (bytes32, ApplyInnerOpError) {
        //require(child.length > 0); // dev: Inner op needs child value
        if (child.length == 0) return ("", ApplyInnerOpError.ChildLength);
        bytes memory preImage =
            abi.encodePacked(innerOp.prefix, child, innerOp.suffix);

        // inner_spec.hash is always SHA256 in the tm/iavl specs
        return (sha256(preImage), ApplyInnerOpError.None);
    }

    function compare(
        bytes memory a,
        bytes calldata b
    ) internal pure returns (int256) {
        uint256 minLen = Math.min(a.length, b.length);
        for (uint256 i; i < minLen; i++) {
            bytes1 ai = a[i];
            bytes1 bi = b[i];
            if (ai < bi) {
                return -1;
            } else if (ai > bi) {
                return 1;
            }
        }
        if (a.length > minLen) {
            return 1;
        }
        if (b.length > minLen) {
            return -1;
        }
        return 0;
    }
}

library Proof {
    bytes constant empty = new bytes(0);

    enum VerifyExistenceError {
        None,
        KeyNotMatching,
        ValueNotMatching,
        CheckSpec,
        CalculateRoot,
        RootNotMatching
    }

    function verifyNoRootCheck(
        UnionIcs23.ExistenceProof calldata proof,
        UnionIcs23.ProofSpec memory spec,
        bytes memory key,
        bytes memory value
    ) internal pure returns (VerifyExistenceError) {
        //require(BytesLib.equal(proof.key, key)); // dev: Provided key doesn't match proof
        if (keccak256(proof.key) != keccak256(key)) {
            return VerifyExistenceError.KeyNotMatching;
        }
        //require(BytesLib.equal(proof.value, value)); // dev: Provided value doesn't match proof
        if (keccak256(proof.value) != keccak256(value)) {
            return VerifyExistenceError.ValueNotMatching;
        }
        CheckAgainstSpecError cCode = checkAgainstSpec(proof, spec);
        if (cCode != CheckAgainstSpecError.None) {
            return VerifyExistenceError.CheckSpec;
        }

        return VerifyExistenceError.None;
    }

    // ExistenceProof
    function verify(
        UnionIcs23.ExistenceProof calldata proof,
        UnionIcs23.ProofSpec memory spec,
        bytes32 commitmentRoot,
        bytes memory key,
        bytes memory value
    ) internal pure returns (VerifyExistenceError) {
        //require(BytesLib.equal(proof.key, key)); // dev: Provided key doesn't match proof
        if (keccak256(proof.key) != keccak256(key)) {
            return VerifyExistenceError.KeyNotMatching;
        }
        //require(BytesLib.equal(proof.value, value)); // dev: Provided value doesn't match proof
        if (keccak256(proof.value) != keccak256(value)) {
            return VerifyExistenceError.ValueNotMatching;
        }
        CheckAgainstSpecError cCode = checkAgainstSpec(proof, spec);
        if (cCode != CheckAgainstSpecError.None) {
            return VerifyExistenceError.CheckSpec;
        }
        (bytes32 root, CalculateRootError rCode) = calculateRoot(proof);
        if (rCode != CalculateRootError.None) {
            return VerifyExistenceError.CalculateRoot;
        }
        //require(BytesLib.equal(root, commitmentRoot)); // dev: Calculcated root doesn't match provided root

        if (root != commitmentRoot) {
            return VerifyExistenceError.RootNotMatching;
        }
        return VerifyExistenceError.None;
    }

    enum CalculateRootError {
        None,
        LeafNil,
        LeafOp,
        PathOp,
        EmptyProof
    }

    function calculateRoot(
        UnionIcs23.ExistenceProof calldata proof
    ) internal pure returns (bytes32, CalculateRootError) {
        //require(LeafOp.isNil(proof.leaf) == false); // dev: Existence Proof needs defined LeafOp
        if (proof.leafPrefix.length == 0) {
            return ("", CalculateRootError.LeafNil);
        }
        (bytes32 root, Ops.ApplyLeafOpError lCode) =
            Ops.applyLeafOp(proof.leafPrefix, proof.key, proof.value);
        if (lCode != Ops.ApplyLeafOpError.None) {
            return ("", CalculateRootError.LeafOp);
        }
        uint256 proofPathLength = proof.path.length;
        for (uint256 i; i < proofPathLength; i++) {
            Ops.ApplyInnerOpError iCode;
            (root, iCode) = Ops.applyOp(proof.path[i], root);
            if (iCode != Ops.ApplyInnerOpError.None) {
                return ("", CalculateRootError.PathOp);
            }
        }

        return (root, CalculateRootError.None);
    }

    enum CheckAgainstSpecError {
        None,
        EmptyLeaf,
        OpsCheckAgainstSpec,
        InnerOpsDepthTooShort,
        InnerOpsDepthTooLong
    }

    function checkAgainstSpec(
        UnionIcs23.ExistenceProof calldata proof,
        UnionIcs23.ProofSpec memory spec
    ) internal pure returns (CheckAgainstSpecError) {
        // LeafOp.isNil does not work
        //require(LeafOp._empty(proof.leaf) == false); // dev: Existence Proof needs defined LeafOp
        // TODO(aeryz): check if there is isempty function in solidity
        if (proof.leafPrefix.length == 0) {
            return CheckAgainstSpecError.EmptyLeaf;
        }
        // LeafOp's checkAgainstSpec is inlined here since we only need to check the prefix here
        //require(hasprefix); // dev: checkAgainstSpec for LeafOp - Leaf Prefix doesn't start with
        // Both specs have the prefix 0x00
        if (proof.leafPrefix[0] != 0) {
            return CheckAgainstSpecError.OpsCheckAgainstSpec;
        }
        // we don't do any checks regarding min_depth, max_depth since they both are 0 in both specs

        uint256 max = spec.maxPrefixLength + spec.childSize;
        uint256 proofPathLength = proof.path.length;
        for (uint256 i; i < proofPathLength; i++) {
            UnionIcs23.InnerOp calldata innerOp = proof.path[i];

            // innerOp.prefix is hardcoded to be 0 in both specs
            if (
                innerOp.prefix.length < spec.minPrefixLength
                    || innerOp.prefix[0] == 0 || innerOp.prefix.length > max
            ) {
                return CheckAgainstSpecError.OpsCheckAgainstSpec;
            }
        }
        return CheckAgainstSpecError.None;
    }

    enum VerifyNonExistenceError {
        None,
        VerifyLeft,
        VerifyRight,
        LeftAndRightKeyEmpty,
        RightKeyRange,
        LeftKeyRange,
        RightProofLeftMost,
        LeftProofRightMost,
        IsLeftNeighbor
    }

    // CosmosIcs23V1NonExistenceProof
    function verify(
        UnionIcs23.NonExistenceProof calldata proof,
        UnionIcs23.ProofSpec memory spec,
        bytes32 commitmentRoot,
        bytes memory key
    ) internal pure returns (VerifyNonExistenceError) {
        bytes calldata leftKey = proof.left.key;
        bytes calldata rightKey = proof.right.key;
        // CosmosIcs23V1ExistenceProof.isNil does not work
        if (!UnionIcs23.empty(proof.left)) {
            VerifyExistenceError eCode = verify(
                proof.left,
                spec,
                commitmentRoot,
                proof.left.key,
                proof.left.value
            );
            if (eCode != VerifyExistenceError.None) {
                return VerifyNonExistenceError.VerifyLeft;
            }
        }
        if (!UnionIcs23.empty(proof.right)) {
            VerifyExistenceError eCode = verify(
                proof.right,
                spec,
                commitmentRoot,
                proof.right.key,
                proof.right.value
            );
            if (eCode != VerifyExistenceError.None) {
                return VerifyNonExistenceError.VerifyRight;
            }
        }
        // If both proofs are missing, this is not a valid proof
        //require(leftKey.length > 0 || rightKey.length > 0); // dev: both left and right proofs missing
        if (leftKey.length == 0 && rightKey.length == 0) {
            return VerifyNonExistenceError.LeftAndRightKeyEmpty;
        }
        // Ensure in valid range
        if (rightKey.length > 0 && Ops.compare(key, rightKey) >= 0) {
            //require(Ops.compare(key, rightKey) < 0); // dev: key is not left of right proof
            return VerifyNonExistenceError.RightKeyRange;
        }
        if (leftKey.length > 0 && Ops.compare(key, leftKey) <= 0) {
            //require(Ops.compare(key, leftKey) > 0); // dev: key is not right of left proof
            return VerifyNonExistenceError.LeftKeyRange;
        }
        if (leftKey.length == 0) {
            //require(isLeftMost(spec, proof.right.path, proof.right.path.length)); // dev: left proof missing, right proof must be left-most
            if (!isLeftMost(spec, proof.right.path, proof.right.path.length)) {
                return VerifyNonExistenceError.RightProofLeftMost;
            }
        } else if (rightKey.length == 0) {
            //require(isRightMost(spec, proof.left.path, proof.left.path.length)); // dev: isRightMost: right proof missing, left proof must be right-most
            if (!isRightMost(spec, proof.left.path, proof.left.path.length)) {
                return VerifyNonExistenceError.LeftProofRightMost;
            }
        } else {
            //require(isLeftNeighbor(spec, proof.left.path, proof.right.path)); // dev: isLeftNeighbor: right proof missing, left proof must be right-most
            bool isLeftNeigh =
                isLeftNeighbor(spec, proof.left.path, proof.right.path);
            if (!isLeftNeigh) {
                return VerifyNonExistenceError.IsLeftNeighbor;
            }
        }

        return VerifyNonExistenceError.None;
    }

    function calculateRoot(
        UnionIcs23.NonExistenceProof calldata proof
    ) internal pure returns (bytes32, CalculateRootError) {
        if (!UnionIcs23.empty(proof.left)) {
            return calculateRoot(proof.left);
        }
        if (!UnionIcs23.empty(proof.right)) {
            return calculateRoot(proof.right);
        }
        //revert(); // dev: Nonexistence proof has empty Left and Right proof
        return ("", CalculateRootError.EmptyProof);
    }

    // private
    // length must be <= path.length
    function isLeftMost(
        UnionIcs23.ProofSpec memory spec,
        UnionIcs23.InnerOp[] calldata path,
        uint256 length
    ) private pure returns (bool) {
        (uint256 minPrefix, uint256 maxPrefix, uint256 suffix) =
            getPadding(spec, 0);
        for (uint256 i; i < length; i++) {
            if (!hasPadding(path[i], minPrefix, maxPrefix, suffix)) {
                return false;
            }
        }
        return true;
    }

    // length must be <= path.length
    function isRightMost(
        UnionIcs23.ProofSpec memory spec,
        UnionIcs23.InnerOp[] calldata path,
        uint256 length
    ) private pure returns (bool) {
        (uint256 minPrefix, uint256 maxPrefix, uint256 suffix) =
            getPadding(spec, 1);
        for (uint256 i; i < length; i++) {
            if (!hasPadding(path[i], minPrefix, maxPrefix, suffix)) {
                return false;
            }
        }

        return true;
    }

    function isLeftStep(
        UnionIcs23.ProofSpec memory spec,
        UnionIcs23.InnerOp calldata left,
        UnionIcs23.InnerOp calldata right
    ) private pure returns (bool) {
        (uint256 leftIdx, OrderFromPaddingError lCode) =
            orderFromPadding(spec, left);
        if (lCode != OrderFromPaddingError.None) return false;
        (uint256 rightIdx, OrderFromPaddingError rCode) =
            orderFromPadding(spec, right);
        if (lCode != OrderFromPaddingError.None) return false;
        if (rCode != OrderFromPaddingError.None) return false;

        return rightIdx == leftIdx + 1;
    }

    function isLeftNeighbor(
        UnionIcs23.ProofSpec memory spec,
        UnionIcs23.InnerOp[] calldata left,
        UnionIcs23.InnerOp[] calldata right
    ) private pure returns (bool) {
        uint256 leftIdx = left.length - 1;
        uint256 rightIdx = right.length - 1;
        while (leftIdx >= 0 && rightIdx >= 0) {
            if (
                keccak256(left[leftIdx].prefix)
                    == keccak256(right[rightIdx].prefix)
                    && keccak256(left[leftIdx].suffix)
                        == keccak256(right[rightIdx].suffix)
            ) {
                leftIdx -= 1;
                rightIdx -= 1;
                continue;
            }
            break;
        }

        if (!isLeftStep(spec, left[leftIdx], right[rightIdx])) {
            return false;
        }
        // slicing does not work for ``memory`` types
        if (!isRightMost(spec, left, leftIdx)) {
            return false;
        }
        if (!isLeftMost(spec, right, rightIdx)) {
            return false;
        }
        return true;
    }

    enum OrderFromPaddingError {
        None,
        NotFound
    }

    function orderFromPadding(
        UnionIcs23.ProofSpec memory spec,
        UnionIcs23.InnerOp calldata op
    ) private pure returns (uint256, OrderFromPaddingError) {
        for (uint256 branch; branch < 2; branch++) {
            (uint256 minp, uint256 maxp, uint256 suffix) =
                getPadding(spec, branch);
            if (hasPadding(op, minp, maxp, suffix) == true) {
                return (branch, OrderFromPaddingError.None);
            }
        }
        //revert(); // dev: Cannot find any valid spacing for this node
        return (0, OrderFromPaddingError.NotFound);
    }

    function getPadding(
        UnionIcs23.ProofSpec memory spec,
        uint256 branch
    )
        private
        pure
        returns (uint256 minPrefix, uint256 maxPrefix, uint256 suffix)
    {
        uint256 prefix = branch * spec.childSize;
        minPrefix = prefix + spec.minPrefixLength;
        maxPrefix = prefix + spec.maxPrefixLength;
        suffix = (1 - branch) * spec.childSize;

        return (minPrefix, maxPrefix, suffix);
    }

    function hasPadding(
        UnionIcs23.InnerOp calldata op,
        uint256 minPrefix,
        uint256 maxPrefix,
        uint256 suffix
    ) private pure returns (bool) {
        if (op.prefix.length < minPrefix || op.prefix.length > maxPrefix) {
            return false;
        }
        return op.suffix.length == suffix;
    }
}

File 13 of 22 : draft-IERC1822.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

File 14 of 22 : ERC1967Utils.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.20;

import {IBeacon} from "../beacon/IBeacon.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 */
library ERC1967Utils {
    // We re-declare ERC-1967 events here because they can't be used directly from IERC1967.
    // This will be fixed in Solidity 0.8.21. At that point we should remove these events.
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(beaconImplementation);
        }
    }

    /**
     * @dev Change the beacon and trigger a setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-BeaconUpgraded} event.
     *
     * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
     * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
     * efficiency.
     */
    function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);

        if (data.length > 0) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
     * if an upgrade doesn't perform an initialization call.
     */
    function _checkNonPayable() private {
        if (msg.value > 0) {
            revert ERC1967NonPayable();
        }
    }
}

File 15 of 22 : ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

File 16 of 22 : UnionICS23.sol
pragma solidity ^0.8.27;

library UnionIcs23 {
    struct ExistenceProof {
        bytes key;
        bytes value;
        bytes leafPrefix;
        InnerOp[] path;
    }

    struct NonExistenceProof {
        bytes key;
        ExistenceProof left;
        ExistenceProof right;
    }

    struct InnerOp {
        bytes prefix;
        bytes suffix;
    }

    struct ProofSpec {
        uint256 childSize;
        uint256 minPrefixLength;
        uint256 maxPrefixLength;
    }

    // Original spec is as follows, we trimmed the common parts:
    //     int32[] memory childOrder = new int32[](2);
    //     childOrder[0] = 0;
    //     childOrder[1] = 1;
    //     iavlProofSpec = CosmosIcs23V1ProofSpec.Data({
    //         leaf_spec: CosmosIcs23V1LeafOp.Data({
    //             prefix: hex"00",
    //             prehash_key: CosmosIcs23V1GlobalEnums.HashOp.NO_HASH,
    //             hash: CosmosIcs23V1GlobalEnums.HashOp.SHA256,
    //             prehash_value: CosmosIcs23V1GlobalEnums.HashOp.SHA256,
    //             length: CosmosIcs23V1GlobalEnums.LengthOp.VAR_PROTO
    //         }),
    //         inner_spec: CosmosIcs23V1InnerSpec.Data({
    //             child_order: childOrder,
    //             child_size: 33,
    //             min_prefix_length: 4,
    //             max_prefix_length: 12,
    //             empty_child: abi.encodePacked(),
    //             hash: CosmosIcs23V1GlobalEnums.HashOp.SHA256
    //         }),
    //         min_depth: 0,
    //         max_depth: 0
    //     });
    function getIavlProofSpec() internal pure returns (ProofSpec memory) {
        return
            ProofSpec({childSize: 33, minPrefixLength: 4, maxPrefixLength: 12});
    }

    // Original spec is as follows, we trimmed the common parts:
    //     int32[] memory childOrder = new int32[](2);
    //     childOrder[0] = 0;
    //     childOrder[1] = 1;
    //     tendermintProofSpec = CosmosIcs23V1ProofSpec.Data({
    //         leaf_spec: CosmosIcs23V1LeafOp.Data({
    //             prefix: hex"00",
    //             prehash_key: CosmosIcs23V1GlobalEnums.HashOp.NO_HASH,
    //             hash: CosmosIcs23V1GlobalEnums.HashOp.SHA256,
    //             prehash_value: CosmosIcs23V1GlobalEnums.HashOp.SHA256,
    //             length: CosmosIcs23V1GlobalEnums.LengthOp.VAR_PROTO
    //         }),
    //         inner_spec: CosmosIcs23V1InnerSpec.Data({
    //             child_order: childOrder,
    //             child_size: 32,
    //             min_prefix_length: 1,
    //             max_prefix_length: 1,
    //             empty_child: abi.encodePacked(),
    //             hash: CosmosIcs23V1GlobalEnums.HashOp.SHA256
    //         }),
    //         min_depth: 0,
    //         max_depth: 0
    //     });
    function getTendermintProofSpec()
        internal
        pure
        returns (ProofSpec memory)
    {
        return
            ProofSpec({childSize: 32, minPrefixLength: 1, maxPrefixLength: 1});
    }

    function empty(
        NonExistenceProof calldata proof
    ) internal pure returns (bool) {
        if (proof.key.length != 0) {
            return false;
        }

        return empty(proof.left) && empty(proof.right);
    }

    function empty(
        ExistenceProof calldata proof
    ) internal pure returns (bool) {
        if (proof.key.length != 0) {
            return false;
        }

        if (proof.value.length != 0) {
            return false;
        }

        if (proof.leafPrefix.length != 0) {
            return false;
        }

        if (proof.path.length != 0) {
            return false;
        }

        return true;
    }
}

File 17 of 22 : Types.sol
pragma solidity ^0.8.27;

enum IBCConnectionState {
    Unspecified,
    Init,
    TryOpen,
    Open
}

struct IBCConnection {
    IBCConnectionState state;
    uint32 clientId;
    uint32 counterpartyClientId;
    uint32 counterpartyConnectionId;
}

enum IBCChannelState {
    Unspecified,
    Init,
    TryOpen,
    Open,
    Closed
}

struct IBCChannel {
    IBCChannelState state;
    uint32 connectionId;
    uint32 counterpartyChannelId;
    bytes counterpartyPortId;
    string version;
}

struct IBCPacket {
    uint32 sourceChannel;
    uint32 destinationChannel;
    bytes data;
    uint64 timeoutHeight;
    uint64 timeoutTimestamp;
}

library IBCErrors {
    error ErrClientTypeAlreadyExists();
    error ErrClientTypeNotFound();
    error ErrInvalidProof();
    error ErrInvalidConnectionState();
    error ErrInvalidChannelState();
    error ErrUnauthorized();
    error ErrLatestTimestampNotFound();
    error ErrTimeoutMustBeSet();
    error ErrHeightTimeout();
    error ErrTimestampTimeout();
    error ErrAcknowledgementIsEmpty();
    error ErrPacketNotReceived();
    error ErrAcknowledgementAlreadyExists();
    error ErrPacketCommitmentNotFound();
    error ErrTimeoutHeightNotReached();
    error ErrTimeoutTimestampNotReached();
    error ErrNotEnoughPackets();
    error ErrCommittedAckNotPresent();
    error ErrClientNotFound();
    error ErrModuleNotFound();
    error ErrPacketAlreadyExist();
}

File 18 of 22 : IIBCModule.sol
pragma solidity ^0.8.27;

import "../Types.sol";

// IIBCModule defines an interface that implements all the callbacks
// that modules must define as specified in ICS-26
// https://github.com/cosmos/ibc/blob/2921c5cec7b18e4ef77677e16a6b693051ae3b35/spec/core/ics-026-routing-module/README.md
interface IIBCModule {
    function onChanOpenInit(
        uint32 connectionId,
        uint32 channelId,
        string calldata version,
        address relayer
    ) external;

    function onChanOpenTry(
        uint32 connectionId,
        uint32 channelId,
        uint32 counterpartyChannelId,
        string calldata version,
        string calldata counterpartyVersion,
        address relayer
    ) external;

    function onChanOpenAck(
        uint32 channelId,
        uint32 counterpartyChannelId,
        string calldata counterpartyVersion,
        address relayer
    ) external;

    function onChanOpenConfirm(uint32 channelId, address relayer) external;

    function onChanCloseInit(uint32 channelId, address relayer) external;

    function onChanCloseConfirm(uint32 channelId, address relayer) external;

    function onRecvIntentPacket(
        IBCPacket calldata packet,
        address marketMaker,
        bytes calldata marketMakerMsg
    ) external returns (bytes memory);

    function onRecvPacket(
        IBCPacket calldata packet,
        address relayer,
        bytes calldata relayerMsg
    ) external returns (bytes memory);

    function onAcknowledgementPacket(
        IBCPacket calldata packet,
        bytes calldata acknowledgement,
        address relayer
    ) external;

    function onTimeoutPacket(IBCPacket calldata, address relayer) external;
}

File 19 of 22 : Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

File 20 of 22 : IBeacon.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {UpgradeableBeacon} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

File 21 of 22 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

File 22 of 22 : StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

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  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

Contract ABI

API
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"implementation","type":"address"}],"name":"ERC1967InvalidImplementation","type":"error"},{"inputs":[],"name":"ERC1967NonPayable","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ErrClientFrozen","type":"error"},{"inputs":[],"name":"ErrHeaderExpired","type":"error"},{"inputs":[],"name":"ErrInvalidInitialConsensusState","type":"error"},{"inputs":[],"name":"ErrInvalidMisbehaviour","type":"error"},{"inputs":[],"name":"ErrInvalidMisbehaviourHeadersSequence","type":"error"},{"inputs":[],"name":"ErrInvalidUntrustedValidatorsHash","type":"error"},{"inputs":[],"name":"ErrInvalidZKP","type":"error"},{"inputs":[],"name":"ErrMaxClockDriftExceeded","type":"error"},{"inputs":[],"name":"ErrNotIBC","type":"error"},{"inputs":[],"name":"ErrTrustedConsensusStateNotFound","type":"error"},{"inputs":[],"name":"ErrUntrustedHeightLTETrustedHeight","type":"error"},{"inputs":[],"name":"ErrUntrustedTimestampLTETrustedTimestamp","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"UUPSUnauthorizedCallContext","type":"error"},{"inputs":[{"internalType":"bytes32","name":"slot","type":"bytes32"}],"name":"UUPSUnsupportedProxiableUUID","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"inputs":[],"name":"UPGRADE_INTERFACE_VERSION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"},{"internalType":"bytes","name":"clientStateBytes","type":"bytes"},{"internalType":"bytes","name":"consensusStateBytes","type":"bytes"}],"name":"createClient","outputs":[{"components":[{"internalType":"bytes32","name":"clientStateCommitment","type":"bytes32"},{"internalType":"bytes32","name":"consensusStateCommitment","type":"bytes32"},{"internalType":"uint64","name":"height","type":"uint64"}],"internalType":"struct ConsensusStateUpdate","name":"update","type":"tuple"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"}],"name":"getClientState","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"},{"internalType":"uint64","name":"height","type":"uint64"}],"name":"getConsensusState","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"}],"name":"getLatestHeight","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"},{"internalType":"uint64","name":"height","type":"uint64"}],"name":"getTimestampAtHeight","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_ibcHandler","type":"address"},{"internalType":"address","name":"admin","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"}],"name":"isFrozen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"},{"internalType":"bytes","name":"clientMessageBytes","type":"bytes"}],"name":"misbehaviour","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxiableUUID","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"clientId","type":"uint32"},{"internalType":"bytes","name":"clientMessageBytes","type":"bytes"}],"name":"updateClient","outputs":[{"components":[{"internalType":"bytes32","name":"clientStateCommitment","type":"bytes32"},{"internalType":"bytes32","name":"consensusStateCommitment","type":"bytes32"},{"internalType":"uint64","name":"height","type":"uint64"}],"internalType":"struct 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SignedHeader","name":"header","type":"tuple"}],"name":"verifyZKP","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.