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0xF80adb93165E1dEC3dA4B8F3a9b709b734D26f03
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Parent Transaction Hash Block From To
0xdb5976b3515be4ef4c446b09c059c5d24849e4d56b1732bb4084ae8ce3a6c342
5520822025-01-31 5:54:5551 days ago1738302895
0xf087491d...887B3Ec92
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Contract Source Code Verified (Exact Match)

Contract Name:
VeArcTransferHandler
Compiler Version
v0.8.19+commit.7dd6d404
ZkSolc Version
v1.5.7
Optimization Enabled:
Yes with Mode 3
Other Settings:
paris EvmVersion, BSL 1.1 license

Contract Source Code (Solidity)

blockscan-logoblockscan-logoblockscan-logoIDE
/**
 *Submitted for verification at abscan.org on 2025-02-01
*/

// Sources flattened with hardhat v2.19.5 https://hardhat.org

// SPDX-License-Identifier: BUSL-1.1 AND MIT

// File @openzeppelin/contracts/utils/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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


// File @openzeppelin/contracts/access/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 *
 * By default, the owner account will be the one that deploys the contract. 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 Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @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) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

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


// File @openzeppelin/contracts/access/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

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

    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        return _pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
        _transferOwnership(sender);
    }
}


// File @openzeppelin/contracts/security/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

/**
 * @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 Pausable is Context {
    /**
     * @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);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _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) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

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

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


// File @openzeppelin/contracts/token/ERC20/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}


// File @openzeppelin/contracts/token/ERC20/extensions/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}


// File @openzeppelin/contracts/security/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}


// File contracts/bases/ArcBase.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;




/**
 * Provides set of properties, functions, and modifiers to help with 
 * security and access control of extending contracts
 */
contract ArcBase is Ownable2Step, Pausable, ReentrancyGuard
{
    function pause() public onlyOwner
    {
        _pause();
    }
    
    function unpause() public onlyOwner
    {
        _unpause();
    }

    function withdrawNative(address beneficiary) public onlyOwner {
        uint256 amount = address(this).balance;
        (bool sent, ) = beneficiary.call{value: amount}("");
        require(sent, 'Unable to withdraw');
    }

    function withdrawToken(address beneficiary, address token) public onlyOwner {
        uint256 amount = IERC20(token).balanceOf(address(this));
        IERC20(token).transfer(beneficiary, amount);
    }
}


// File contracts/interfaces/IArc.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;

interface IArc {
    function approve(address _spender, uint _value) external returns (bool);
    function burn(uint amount) external;
    function mint(address account, uint amount) external;
    function transfer(address, uint) external returns (bool);
    function transferFrom(address _from, address _to, uint _value) external;
}


// File contracts/interfaces/IRainbowRoad.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;

interface IRainbowRoad {
    
    function acceptTeam() external;
    function actionHandlers(string calldata action) external view returns (address);
    function arc() external view returns (IArc);
    function blockToken(address tokenAddress) external;
    function disableFeeManager(address feeManager) external;
    function disableOpenTokenWhitelisting() external;
    function disableReceiver(address receiver) external;
    function disableSender(address sender) external;
    function disableSendFeeBurn() external;
    function disableSendFeeCharge() external;
    function disableWhitelistingFeeBurn() external;
    function disableWhitelistingFeeCharge() external;
    function enableFeeManager(address feeManager) external;
    function enableOpenTokenWhitelisting() external;
    function enableReceiver(address receiver) external;
    function enableSendFeeBurn() external;
    function enableSender(address sender) external;
    function enableSendFeeCharge() external;
    function enableWhitelistingFeeBurn() external;
    function enableWhitelistingFeeCharge() external;
    function sendFee() external view returns (uint256);
    function whitelistingFee() external view returns (uint256);
    function chargeSendFee() external view returns (bool);
    function chargeWhitelistingFee() external view returns (bool);
    function burnSendFee() external view returns (bool);
    function burnWhitelistingFee() external view returns (bool);
    function openTokenWhitelisting() external view returns (bool);
    function config(string calldata configName) external view returns (bytes memory);
    function blockedTokens(address tokenAddress) external view returns (bool);
    function feeManagers(address feeManager) external view returns (bool);
    function receiveAction(string calldata action, address to, bytes calldata payload) external;
    function sendAction(string calldata action, address from, bytes calldata payload) external;
    function setActionHandler(string memory action, address handler) external;
    function setArc(address _arc) external;
    function setSendFee(uint256 _fee) external;
    function setTeam(address _team) external;
    function setTeamRate(uint256 _teamRate) external;
    function setToken(string calldata tokenSymbol, address tokenAddress) external;
    function setWhitelistingFee(uint256 _fee) external;
    function team() external view returns (address);
    function teamRate() external view returns (uint256);
    function tokens(string calldata tokenSymbol) external view returns (address);
    function MAX_TEAM_RATE() external view returns (uint256);
    function receivers(address receiver) external view returns (bool);
    function senders(address sender) external view returns (bool);
    function unblockToken(address tokenAddress) external;
    function whitelist(address tokenAddress) external;
}


// File contracts/bases/ArcBaseWithRainbowRoad.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;


/**
 * Extends the ArcBase contract to provide
 * for interactions with the Rainbow Road
 */
contract ArcBaseWithRainbowRoad is ArcBase
{
    IRainbowRoad public rainbowRoad;
    
    constructor(address _rainbowRoad)
    {
        require(_rainbowRoad != address(0), 'Rainbow Road cannot be zero address');
        rainbowRoad = IRainbowRoad(_rainbowRoad);
    }
    
    function setRainbowRoad(address _rainbowRoad) external onlyOwner
    {
        require(_rainbowRoad != address(0), 'Rainbow Road cannot be zero address');
        rainbowRoad = IRainbowRoad(_rainbowRoad);
    }
    
    /// @dev Only calls from the Rainbow Road are accepted.
    modifier onlyRainbowRoad() 
    {
        require(msg.sender == address(rainbowRoad), 'Must be called by Rainbow Road');
        _;
    }
}


// File contracts/interfaces/IHandler.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;

interface IHandler {
    function handleReceive(address target, bytes calldata payload) external;
    function handleSend(address target, bytes calldata payload) external;
}


// File contracts/interfaces/IMintBurn.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;

interface IMintBurn {
    function burn(uint amount) external;
    function mint(address account, uint amount) external;
}


// File contracts/interfaces/IVotingEscrow.sol

// Original license: SPDX_License_Identifier: MIT
pragma solidity 0.8.19;

interface IVotingEscrow {

    struct Point {
        int128 bias;
        int128 slope; // # -dweight / dt
        uint256 ts;
        uint256 blk; // block
    }

    function user_point_epoch(uint tokenId) external view returns (uint);
    function epoch() external view returns (uint);
    function user_point_history(uint tokenId, uint loc) external view returns (Point memory);
    function point_history(uint loc) external view returns (Point memory);
    function checkpoint() external;
    function deposit_for(uint tokenId, uint value) external;
    function token() external view returns (address);
    function user_point_history__ts(uint tokenId, uint idx) external view returns (uint);
    function locked__end(uint _tokenId) external view returns (uint);
    function locked__amount(uint _tokenId) external view returns (uint);
    function approve(address spender, uint tokenId) external;
    function balanceOfNFT(uint) external view returns (uint);
    function isApprovedOrOwner(address, uint) external view returns (bool);
    function ownerOf(uint) external view returns (address);
    function transferFrom(address, address, uint) external;
    function totalSupply() external view returns (uint);
    function supply() external view returns (uint);
    function create_lock_for(uint, uint, address) external returns (uint);
    function lockVote(uint tokenId) external;
    function isVoteExpired(uint tokenId) external view returns (bool);
    function voteExpiry(uint _tokenId) external view returns (uint);
    function attach(uint tokenId) external;
    function detach(uint tokenId) external;
    function voting(uint tokenId) external;
    function abstain(uint tokenId) external;
    function voted(uint tokenId) external view returns (bool);
    function withdraw(uint tokenId) external;
    function create_lock(uint value, uint duration) external returns (uint);
    function setVoter(address voter) external;
    function balanceOf(address owner) external view returns (uint);
    function safeTransferFrom(address from, address to, uint tokenId) external;
    function burn(uint _tokenId) external;
    function setAdmin(address _admin) external;
    function setArtProxy(address _proxy) external;
}


// File contracts/handlers/VeArcTransferHandler.sol

// Original license: SPDX_License_Identifier: BUSL-1.1
pragma solidity 0.8.19;






/**
 * Dex Weekly Update Handler
 */
contract VeArcTransferHandler is ArcBaseWithRainbowRoad, IHandler
{
    uint internal constant WEEK = 1 weeks;
    uint internal constant MAXTIME = 4 * 365 * 86400;
    IVotingEscrow public veArc;
    
    event VeArcMinted(address indexed account, uint fromTokenId, uint toTokenId, uint amount, uint fromLockEnd, uint toLockEnd);
    event VeArcReceived(address indexed operator, address indexed from, uint tokenId, bytes data);
    
    constructor(address _rainbowRoad, address _veArc) ArcBaseWithRainbowRoad(_rainbowRoad)
    {
        require(_veArc != address(0), 'veArc cannot be zero address');
        veArc = IVotingEscrow(_veArc);
    }
    
    function setVeArc(address _veArc) external onlyOwner
    {
        require(_veArc != address(0), 'veArc cannot be zero address');
        veArc = IVotingEscrow(_veArc);
    }
    
    function encodePayload(uint tokenId) view external returns (bytes memory payload)
    {
        uint lockedAmount = veArc.locked__amount(tokenId);
        uint lockedEnd = veArc.locked__end(tokenId);
        uint blockTimestamp = block.timestamp;
        
        uint lockDuration = lockedEnd - blockTimestamp;
        require(lockDuration > 0, 'veArc cannot be expired');
        
        uint unlockTime = (blockTimestamp + lockDuration) / WEEK * WEEK; // Locktime is rounded down to weeks
        require(unlockTime > blockTimestamp, 'Lock cannot expire soon');
        require(unlockTime <= blockTimestamp + MAXTIME, 'Cannot be locked for more than 4 years');
        
        return abi.encode(tokenId, lockedAmount, lockedEnd);
    }
    
    function handleSend(address target, bytes calldata payload) external onlyRainbowRoad whenNotPaused
    {
        (uint tokenId, uint lockedAmount, uint lockedEnd) = abi.decode(payload, (uint, uint, uint));
        
        uint currentLockedAmount = veArc.locked__amount(tokenId);
        require(currentLockedAmount == lockedAmount, 'Locked amount for veArc is invalid');
        
        uint currentLockedEnd = veArc.locked__end(tokenId);
        require(currentLockedEnd == lockedEnd, 'Locked end for veArc is invalid');
        
        uint blockTimestamp = block.timestamp;
        uint lockDuration = lockedEnd - blockTimestamp;
        require(lockDuration > 0, 'veArc cannot be expired');
        
        uint unlockTime = (blockTimestamp + lockDuration) / WEEK * WEEK; // Locktime is rounded down to weeks
        require(unlockTime > blockTimestamp, 'Lock cannot expire soon');
        require(unlockTime <= blockTimestamp + MAXTIME, 'Cannot be locked for more than 4 years');
        
        veArc.safeTransferFrom(target, address(this), tokenId);
        veArc.burn(tokenId);
    }
    
    function handleReceive(address target, bytes calldata payload) external onlyRainbowRoad whenNotPaused
    {
        (uint tokenId, uint lockedAmount, uint lockedEnd) = abi.decode(payload, (uint, uint, uint));
        
        uint blockTimestamp = block.timestamp;
        uint newLockDuration = lockedEnd - blockTimestamp;
        
        IArc arc = rainbowRoad.arc();
        
        arc.mint(address(this), lockedAmount);
        arc.approve(address(veArc), lockedAmount);
        uint newTokenId = veArc.create_lock_for(lockedAmount, newLockDuration, target);
        emit VeArcMinted(target, tokenId, newTokenId, lockedAmount, lockedEnd, newLockDuration + blockTimestamp);
    }
    
    function onERC721Received(address operator, address from, uint tokenId, bytes calldata data) external returns (bytes4) {
        emit VeArcReceived(operator, from, tokenId, data);
        return this.onERC721Received.selector;
    }
}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"address","name":"_rainbowRoad","type":"address"},{"internalType":"address","name":"_veArc","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferStarted","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":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fromLockEnd","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toLockEnd","type":"uint256"}],"name":"VeArcMinted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"VeArcReceived","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"encodePayload","outputs":[{"internalType":"bytes","name":"payload","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"payload","type":"bytes"}],"name":"handleReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"payload","type":"bytes"}],"name":"handleSend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rainbowRoad","outputs":[{"internalType":"contract IRainbowRoad","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rainbowRoad","type":"address"}],"name":"setRainbowRoad","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_veArc","type":"address"}],"name":"setVeArc","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"veArc","outputs":[{"internalType":"contract IVotingEscrow","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"beneficiary","type":"address"}],"name":"withdrawNative","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"address","name":"token","type":"address"}],"name":"withdrawToken","outputs":[],"stateMutability":"nonpayable","type":"function"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View
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Deployed Bytecode

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000eb484dddfad4f89c0f72267c7d13752451831038000000000000000000000000483bdbdbf60d9650845c8097e002c2241d92ab45

-----Decoded View---------------
Arg [0] : _rainbowRoad (address): 0xEb484dddfAD4F89c0F72267c7d13752451831038
Arg [1] : _veArc (address): 0x483BdBdbf60d9650845c8097E002c2241D92ab45

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000eb484dddfad4f89c0f72267c7d13752451831038
Arg [1] : 000000000000000000000000483bdbdbf60d9650845c8097e002c2241d92ab45


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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.