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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.22;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IVotingEscrow} from "./interfaces/IVotingEscrow.sol";

/*

@title Curve Fee Distribution modified for ve(3,3) emissions
@author Curve Finance, andrecronje
@license MIT

*/

contract veArcDistributor {

    event CheckpointToken(
        uint time,
        uint tokens
    );

    event Claimed(
        uint tokenId,
        uint amount,
        uint claim_epoch,
        uint max_epoch
    );

    uint constant WEEK = 7 * 86400;

    uint public start_time;
    uint public time_cursor;
    mapping(uint => uint) public time_cursor_of;
    mapping(uint => uint) public user_epoch_of;

    uint public last_token_time;
    uint[1000000000000000] public tokens_per_week;

    address public voting_escrow;
    address public token;
    uint public token_last_balance;

    uint[1000000000000000] public ve_supply;

    address public depositor;

    constructor(address _voting_escrow) {
        uint _t = block.timestamp / WEEK * WEEK;
        start_time = _t;
        last_token_time = _t;
        time_cursor = _t;
        address _token = IVotingEscrow(_voting_escrow).token();
        token = _token;
        voting_escrow = _voting_escrow;
        depositor = msg.sender;
        IERC20(_token).approve(_voting_escrow, type(uint).max);
    }

    function timestamp() external view returns (uint) {
        return block.timestamp / WEEK * WEEK;
    }

    function _checkpoint_token() internal {
        uint token_balance = IERC20(token).balanceOf(address(this));
        uint to_distribute = token_balance - token_last_balance;
        token_last_balance = token_balance;

        uint t = last_token_time;
        uint since_last = block.timestamp - t;
        last_token_time = block.timestamp;
        uint this_week = t / WEEK * WEEK;
        uint next_week = 0;

        for (uint i = 0; i < 20; i++) {
            next_week = this_week + WEEK;
            if (block.timestamp < next_week) {
                if (since_last == 0 && block.timestamp == t) {
                    tokens_per_week[this_week] += to_distribute;
                } else {
                    tokens_per_week[this_week] += to_distribute * (block.timestamp - t) / since_last;
                }
                break;
            } else {
                if (since_last == 0 && next_week == t) {
                    tokens_per_week[this_week] += to_distribute;
                } else {
                    tokens_per_week[this_week] += to_distribute * (next_week - t) / since_last;
                }
            }
            t = next_week;
            this_week = next_week;
        }
        emit CheckpointToken(block.timestamp, to_distribute);
    }

    function checkpoint_token() external {
        assert(msg.sender == depositor);
        _checkpoint_token();
    }

    function _find_timestamp_epoch(address ve, uint _timestamp) internal view returns (uint) {
        uint _min = 0;
        uint _max = IVotingEscrow(ve).epoch();
        for (uint i = 0; i < 128; i++) {
            if (_min >= _max) break;
            uint _mid = (_min + _max + 2) / 2;
            IVotingEscrow.Point memory pt = IVotingEscrow(ve).point_history(_mid);
            if (pt.ts <= _timestamp) {
                _min = _mid;
            } else {
                _max = _mid - 1;
            }
        }
        return _min;
    }

    function _find_timestamp_user_epoch(address ve, uint tokenId, uint _timestamp, uint max_user_epoch) internal view returns (uint) {
        uint _min = 0;
        uint _max = max_user_epoch;
        for (uint i = 0; i < 128; i++) {
            if (_min >= _max) break;
            uint _mid = (_min + _max + 2) / 2;
            IVotingEscrow.Point memory pt = IVotingEscrow(ve).user_point_history(tokenId, _mid);
            if (pt.ts <= _timestamp) {
                _min = _mid;
            } else {
                _max = _mid -1;
            }
        }
        return _min;
    }

    function ve_for_at(uint _tokenId, uint _timestamp) external view returns (uint) {
        address ve = voting_escrow;
        uint max_user_epoch = IVotingEscrow(ve).user_point_epoch(_tokenId);
        uint epoch = _find_timestamp_user_epoch(ve, _tokenId, _timestamp, max_user_epoch);
        IVotingEscrow.Point memory pt = IVotingEscrow(ve).user_point_history(_tokenId, epoch);
        return Math.max(uint(int256(pt.bias - pt.slope * (int128(int256(_timestamp - pt.ts))))), 0);
    }

    function _checkpoint_total_supply() internal {
        address ve = voting_escrow;
        uint t = time_cursor;
        uint rounded_timestamp = block.timestamp / WEEK * WEEK;
        IVotingEscrow(ve).checkpoint();

        for (uint i = 0; i < 20; i++) {
            if (t > rounded_timestamp) {
                break;
            } else {
                uint epoch = _find_timestamp_epoch(ve, t);
                IVotingEscrow.Point memory pt = IVotingEscrow(ve).point_history(epoch);
                int128 dt = 0;
                if (t > pt.ts) {
                    dt = int128(int256(t - pt.ts));
                }
                ve_supply[t] = Math.max(uint(int256(pt.bias - pt.slope * dt)), 0);
            }
            t += WEEK;
        }
        time_cursor = t;
    }

    function checkpoint_total_supply() external {
        _checkpoint_total_supply();
    }

    function _claim(uint _tokenId, address ve, uint _last_token_time) internal returns (uint) {
        uint user_epoch = 0;
        uint to_distribute = 0;

        uint max_user_epoch = IVotingEscrow(ve).user_point_epoch(_tokenId);
        uint _start_time = start_time;

        if (max_user_epoch == 0) return 0;

        uint week_cursor = time_cursor_of[_tokenId];
        if (week_cursor == 0) {
            user_epoch = _find_timestamp_user_epoch(ve, _tokenId, _start_time, max_user_epoch);
        } else {
            user_epoch = user_epoch_of[_tokenId];
        }

        if (user_epoch == 0) user_epoch = 1;

        IVotingEscrow.Point memory user_point = IVotingEscrow(ve).user_point_history(_tokenId, user_epoch);

        if (week_cursor == 0) week_cursor = (user_point.ts + WEEK - 1) / WEEK * WEEK;
        if (week_cursor >= last_token_time) return 0;
        if (week_cursor < _start_time) week_cursor = _start_time;

        IVotingEscrow.Point memory old_user_point;

        for (uint i = 0; i < 50; i++) {
            if (week_cursor >= _last_token_time) break;

            if (week_cursor >= user_point.ts && user_epoch <= max_user_epoch) {
                user_epoch += 1;
                old_user_point = user_point;
                if (user_epoch > max_user_epoch) {
                    user_point = IVotingEscrow.Point(0,0,0,0);
                } else {
                    user_point = IVotingEscrow(ve).user_point_history(_tokenId, user_epoch);
                }
            } else {
                int128 dt = int128(int256(week_cursor - old_user_point.ts));
                uint balance_of = Math.max(uint(int256(old_user_point.bias - dt * old_user_point.slope)), 0);
                if (balance_of == 0 && user_epoch > max_user_epoch) break;
                if (balance_of > 0) {
                    to_distribute += balance_of * tokens_per_week[week_cursor] / ve_supply[week_cursor];
                }
                week_cursor += WEEK;
            }
        }

        user_epoch = Math.min(max_user_epoch, user_epoch - 1);
        user_epoch_of[_tokenId] = user_epoch;
        time_cursor_of[_tokenId] = week_cursor;

        emit Claimed(_tokenId, to_distribute, user_epoch, max_user_epoch);

        return to_distribute;
    }

    function _claimable(uint _tokenId, address ve, uint _last_token_time) internal view returns (uint) {
        uint user_epoch = 0;
        uint to_distribute = 0;

        uint max_user_epoch = IVotingEscrow(ve).user_point_epoch(_tokenId);
        uint _start_time = start_time;

        if (max_user_epoch == 0) return 0;

        uint week_cursor = time_cursor_of[_tokenId];
        if (week_cursor == 0) {
            user_epoch = _find_timestamp_user_epoch(ve, _tokenId, _start_time, max_user_epoch);
        } else {
            user_epoch = user_epoch_of[_tokenId];
        }

        if (user_epoch == 0) user_epoch = 1;

        IVotingEscrow.Point memory user_point = IVotingEscrow(ve).user_point_history(_tokenId, user_epoch);

        if (week_cursor == 0) week_cursor = (user_point.ts + WEEK - 1) / WEEK * WEEK;
        if (week_cursor >= last_token_time) return 0;
        if (week_cursor < _start_time) week_cursor = _start_time;

        IVotingEscrow.Point memory old_user_point;

        for (uint i = 0; i < 50; i++) {
            if (week_cursor >= _last_token_time) break;

            if (week_cursor >= user_point.ts && user_epoch <= max_user_epoch) {
                user_epoch += 1;
                old_user_point = user_point;
                if (user_epoch > max_user_epoch) {
                    user_point = IVotingEscrow.Point(0,0,0,0);
                } else {
                    user_point = IVotingEscrow(ve).user_point_history(_tokenId, user_epoch);
                }
            } else {
                int128 dt = int128(int256(week_cursor - old_user_point.ts));
                uint balance_of = Math.max(uint(int256(old_user_point.bias - dt * old_user_point.slope)), 0);
                if (balance_of == 0 && user_epoch > max_user_epoch) break;
                if (balance_of > 0) {
                    to_distribute += balance_of * tokens_per_week[week_cursor] / ve_supply[week_cursor];
                }
                week_cursor += WEEK;
            }
        }

        return to_distribute;
    }

    function claimable(uint _tokenId) external view returns (uint) {
        uint _last_token_time = last_token_time / WEEK * WEEK;
        return _claimable(_tokenId, voting_escrow, _last_token_time);
    }

    function claim(uint _tokenId) external returns (uint) {
        if (block.timestamp >= time_cursor) _checkpoint_total_supply();
        uint _last_token_time = last_token_time;
        _last_token_time = _last_token_time / WEEK * WEEK;
        uint amount = _claim(_tokenId, voting_escrow, _last_token_time);
        if (amount != 0) {
            IVotingEscrow(voting_escrow).deposit_for(_tokenId, amount);
            token_last_balance -= amount;
        }
        return amount;
    }

    function claim_many(uint[] memory _tokenIds) external returns (bool) {
        if (block.timestamp >= time_cursor) _checkpoint_total_supply();
        uint _last_token_time = last_token_time;
        _last_token_time = _last_token_time / WEEK * WEEK;
        address _voting_escrow = voting_escrow;
        uint total = 0;

        for (uint i = 0; i < _tokenIds.length; i++) {
            uint _tokenId = _tokenIds[i];
            if (_tokenId == 0) break;
            uint amount = _claim(_tokenId, _voting_escrow, _last_token_time);
            if (amount != 0) {
                IVotingEscrow(_voting_escrow).deposit_for(_tokenId, amount);
                total += amount;
            }
        }
        if (total != 0) {
            token_last_balance -= total;
        }

        return true;
    }

    // Once off event on contract initialize
    function setDepositor(address _depositor) external {
        require(msg.sender == depositor);
        depositor = _depositor;
    }
}

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @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 up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (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; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                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.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 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.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            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 (rounding == Rounding.Up && 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 down.
     *
     * 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 + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * 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 + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * 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 + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * 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 + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.22;

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;
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_voting_escrow","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokens","type":"uint256"}],"name":"CheckpointToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claim_epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"max_epoch","type":"uint256"}],"name":"Claimed","type":"event"},{"inputs":[],"name":"checkpoint_token","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"checkpoint_total_supply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"claim","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"claim_many","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"claimable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"depositor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"last_token_time","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_depositor","type":"address"}],"name":"setDepositor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"start_time","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"time_cursor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"time_cursor_of","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"timestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token_last_balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokens_per_week","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"user_epoch_of","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"ve_for_at","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"ve_supply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"voting_escrow","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000006aca098fa93dad7a872f6dcb989f8b4a3afc3342

-----Decoded View---------------
Arg [0] : _voting_escrow (address): 0x6ACa098fa93DAD7A872F6dcb989F8b4A3aFC3342

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000006aca098fa93dad7a872f6dcb989f8b4a3afc3342