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• library Math
•    - function max(uint256 a, uint256 b)
•    - function min(uint256 a, uint256 b)
•    - function average(uint256 a, uint256 b ...
•    - function ceilDiv(uint256 a, uint256 b ...
•    - function mulDiv(uint256 x, uint256 y, ...
•    - function mulDiv(uint256 x, uint256 y, ...
•    - function sqrt(uint256 a)
•    - function sqrt(uint256 a, Rounding rou ...
•    - function log2(uint256 value)
•    - function log2(uint256 value, Rounding ...
•    - function log10(uint256 value)
•    - function log10(uint256 value, Roundin ...
•    - function log256(uint256 value)
•    - function log256(uint256 value, Roundi ...
• library SignedMath
•    - function max(int256 a, int256 b)
•    - function min(int256 a, int256 b)
•    - function average(int256 a, int256 b)
•    - function abs(int256 n)
• library Strings
•    - function toString(uint256 value)
•    - function toString(int256 value)
•    - function toHexString(uint256 value)
•    - function toHexString(uint256 value, u ...
•    - function toHexString(address addr)
•    - function equal(string memory a, strin ...
• library ECDSA
•    - function _throwError(RecoverError err ...
•    - function tryRecover(bytes32 hash, byt ...
•    - function recover(bytes32 hash, bytes ...
•    - function tryRecover(bytes32 hash, byt ...
•    - function recover(bytes32 hash, bytes3 ...
•    - function tryRecover(bytes32 hash, uin ...
•    - function recover(bytes32 hash, uint8 ...
•    - function toEthSignedMessageHash(bytes ...
•    - function toEthSignedMessageHash(bytes ...
•    - function toTypedDataHash(bytes32 doma ...
•    - function toDataWithIntendedValidatorH ...
•    - function _nonReentrantBefore()
•    - function _nonReentrantAfter()
•    - function _reentrancyGuardEntered()
• interface IPosterMinterV2
•    - function mint(PosterMintPass calldata ...
• interface IPosters
•    - function mint(address _to, uint256 _i ...
•    - function setBaseUri(string calldata _ ...
•    - function uri(uint256 _id)
• interface IRoleAuthority
•    - function isOperator(address _address)
•    - function is721Minter(address _address ...
•    - function isMintPassSigner(address _ad ...
•    - function isPosterMinter(address _addr ...
•    - function isPosterSigner(address _addr ...
•  contract PosterMinterV2 is IPoster ... *
•    - function mint(
•    - function _mintPoster(PosterMintDetail ...
•    - function _verifyMintDetails(PosterMin ...
•    - function _verifyMintPass(PosterMintPa ...
•    - function _verifySignature(
•    - function _hashMintPass(PosterMintPass ...
•    - function _hashMintDetailsArray(Poster ...
•    - function _hashPayslips(Payslip[] memo ...

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/**
 *Submitted for verification at Etherscan.io on 2023-11-29
*/

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

// 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);
    }
  }
}

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

// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
  /**
   * @dev Returns the largest of two signed numbers.
   */
  function max(int256 a, int256 b) internal pure returns (int256) {
    return a > b ? a : b;
  }

  /**
   * @dev Returns the smallest of two signed numbers.
   */
  function min(int256 a, int256 b) internal pure returns (int256) {
    return a < b ? a : b;
  }

  /**
   * @dev Returns the average of two signed numbers without overflow.
   * The result is rounded towards zero.
   */
  function average(int256 a, int256 b) internal pure returns (int256) {
    // Formula from the book "Hacker's Delight"
    int256 x = (a & b) + ((a ^ b) >> 1);
    return x + (int256(uint256(x) >> 255) & (a ^ b));
  }

  /**
   * @dev Returns the absolute unsigned value of a signed value.
   */
  function abs(int256 n) internal pure returns (uint256) {
    unchecked {
      // must be unchecked in order to support `n = type(int256).min`
      return uint256(n >= 0 ? n : -n);
    }
  }
}

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

// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
  bytes16 private constant _SYMBOLS = "0123456789abcdef";
  uint8 private constant _ADDRESS_LENGTH = 20;

  /**
   * @dev Converts a `uint256` to its ASCII `string` decimal representation.
   */
  function toString(uint256 value) internal pure returns (string memory) {
    unchecked {
      uint256 length = Math.log10(value) + 1;
      string memory buffer = new string(length);
      uint256 ptr;
      /// @solidity memory-safe-assembly
      assembly {
        ptr := add(buffer, add(32, length))
      }
      while (true) {
        ptr--;
        /// @solidity memory-safe-assembly
        assembly {
          mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
        }
        value /= 10;
        if (value == 0) break;
      }
      return buffer;
    }
  }

  /**
   * @dev Converts a `int256` to its ASCII `string` decimal representation.
   */
  function toString(int256 value) internal pure returns (string memory) {
    return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
  }

  /**
   * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
   */
  function toHexString(uint256 value) internal pure returns (string memory) {
    unchecked {
      return toHexString(value, Math.log256(value) + 1);
    }
  }

  /**
   * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
   */
  function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
    bytes memory buffer = new bytes(2 * length + 2);
    buffer[0] = "0";
    buffer[1] = "x";
    for (uint256 i = 2 * length + 1; i > 1; --i) {
      buffer[i] = _SYMBOLS[value & 0xf];
      value >>= 4;
    }
    require(value == 0, "Strings: hex length insufficient");
    return string(buffer);
  }

  /**
   * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
   */
  function toHexString(address addr) internal pure returns (string memory) {
    return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
  }

  /**
   * @dev Returns true if the two strings are equal.
   */
  function equal(string memory a, string memory b) internal pure returns (bool) {
    return keccak256(bytes(a)) == keccak256(bytes(b));
  }
}

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

// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
  enum RecoverError {
    NoError,
    InvalidSignature,
    InvalidSignatureLength,
    InvalidSignatureS,
    InvalidSignatureV // Deprecated in v4.8
  }

  function _throwError(RecoverError error) private pure {
    if (error == RecoverError.NoError) {
      return; // no error: do nothing
    } else if (error == RecoverError.InvalidSignature) {
      revert("ECDSA: invalid signature");
    } else if (error == RecoverError.InvalidSignatureLength) {
      revert("ECDSA: invalid signature length");
    } else if (error == RecoverError.InvalidSignatureS) {
      revert("ECDSA: invalid signature 's' value");
    }
  }

  /**
   * @dev Returns the address that signed a hashed message (`hash`) with
   * `signature` or error string. This address can then be used for verification purposes.
   *
   * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
   * this function rejects them by requiring the `s` value to be in the lower
   * half order, and the `v` value to be either 27 or 28.
   *
   * IMPORTANT: `hash` _must_ be the result of a hash operation for the
   * verification to be secure: it is possible to craft signatures that
   * recover to arbitrary addresses for non-hashed data. A safe way to ensure
   * this is by receiving a hash of the original message (which may otherwise
   * be too long), and then calling {toEthSignedMessageHash} on it.
   *
   * Documentation for signature generation:
   * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
   * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
   *
   * _Available since v4.3._
   */
  function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
    if (signature.length == 65) {
      bytes32 r;
      bytes32 s;
      uint8 v;
      // ecrecover takes the signature parameters, and the only way to get them
      // currently is to use assembly.
      /// @solidity memory-safe-assembly
      assembly {
        r := mload(add(signature, 0x20))
        s := mload(add(signature, 0x40))
        v := byte(0, mload(add(signature, 0x60)))
      }
      return tryRecover(hash, v, r, s);
    } else {
      return (address(0), RecoverError.InvalidSignatureLength);
    }
  }

  /**
   * @dev Returns the address that signed a hashed message (`hash`) with
   * `signature`. This address can then be used for verification purposes.
   *
   * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
   * this function rejects them by requiring the `s` value to be in the lower
   * half order, and the `v` value to be either 27 or 28.
   *
   * IMPORTANT: `hash` _must_ be the result of a hash operation for the
   * verification to be secure: it is possible to craft signatures that
   * recover to arbitrary addresses for non-hashed data. A safe way to ensure
   * this is by receiving a hash of the original message (which may otherwise
   * be too long), and then calling {toEthSignedMessageHash} on it.
   */
  function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
    (address recovered, RecoverError error) = tryRecover(hash, signature);
    _throwError(error);
    return recovered;
  }

  /**
   * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
   *
   * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
   *
   * _Available since v4.3._
   */
  function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
    bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
    uint8 v = uint8((uint256(vs) >> 255) + 27);
    return tryRecover(hash, v, r, s);
  }

  /**
   * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
   *
   * _Available since v4.2._
   */
  function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
    (address recovered, RecoverError error) = tryRecover(hash, r, vs);
    _throwError(error);
    return recovered;
  }

  /**
   * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
   * `r` and `s` signature fields separately.
   *
   * _Available since v4.3._
   */
  function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
    // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
    // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
    // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
    // signatures from current libraries generate a unique signature with an s-value in the lower half order.
    //
    // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
    // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
    // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
    // these malleable signatures as well.
    if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
      return (address(0), RecoverError.InvalidSignatureS);
    }

    // If the signature is valid (and not malleable), return the signer address
    address signer = ecrecover(hash, v, r, s);
    if (signer == address(0)) {
      return (address(0), RecoverError.InvalidSignature);
    }

    return (signer, RecoverError.NoError);
  }

  /**
   * @dev Overload of {ECDSA-recover} that receives the `v`,
   * `r` and `s` signature fields separately.
   */
  function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
    (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
    _throwError(error);
    return recovered;
  }

  /**
   * @dev Returns an Ethereum Signed Message, created from a `hash`. This
   * produces hash corresponding to the one signed with the
   * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
   * JSON-RPC method as part of EIP-191.
   *
   * See {recover}.
   */
  function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
    // 32 is the length in bytes of hash,
    // enforced by the type signature above
    /// @solidity memory-safe-assembly
    assembly {
      mstore(0x00, "\x19Ethereum Signed Message:\n32")
      mstore(0x1c, hash)
      message := keccak256(0x00, 0x3c)
    }
  }

  /**
   * @dev Returns an Ethereum Signed Message, created from `s`. This
   * produces hash corresponding to the one signed with the
   * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
   * JSON-RPC method as part of EIP-191.
   *
   * See {recover}.
   */
  function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
    return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
  }

  /**
   * @dev Returns an Ethereum Signed Typed Data, created from a
   * `domainSeparator` and a `structHash`. This produces hash corresponding
   * to the one signed with the
   * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
   * JSON-RPC method as part of EIP-712.
   *
   * See {recover}.
   */
  function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
    /// @solidity memory-safe-assembly
    assembly {
      let ptr := mload(0x40)
      mstore(ptr, "\x19\x01")
      mstore(add(ptr, 0x02), domainSeparator)
      mstore(add(ptr, 0x22), structHash)
      data := keccak256(ptr, 0x42)
    }
  }

  /**
   * @dev Returns an Ethereum Signed Data with intended validator, created from a
   * `validator` and `data` according to the version 0 of EIP-191.
   *
   * See {recover}.
   */
  function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
    return keccak256(abi.encodePacked("\x19\x00", validator, data));
  }
}

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

// 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/interfaces/internal/IPosterMinterV2.sol

pragma solidity ^0.8.17;

interface IPosterMinterV2 {
  error NotSigner();
  error NotEnoughEth();
  error CostMismatch();
  error HashRepeated();
  error TransferFailed();
  error MissingPaylips();
  error CannotMintZeroAmount();
  error ZeroAddress();
  error ProofInvalid();
  error SignatureExpired();
  error OwnerAlreadyMinted();
  error NoMintDetails();

  /**
   * @notice Payslip is the struct for a payout on mint.
   * @dev Payslips are paid out in order, if there is not enough balance to pay out the next payslip, the mint fails.
   * @param amountInWei Amount to pay out in wei
   * @param recipient Address to pay out to
   */
  struct Payslip {
    uint256 amountInWei;
    address recipient;
  }

  /**
   * @notice The information required to mint a poster.
   * @param tokenId The id of the token to mint.
   * @param amount The amount of the tokens to mint.
   * @param ownerMint Whether the owner is minting.
   */
  struct PosterMintDetails {
    uint256 tokenId;
    uint256 amount;
    bool ownerMint;
  }

  /**
   * @notice The information required to mint a poster.
   * @param mintDetails PosterMintDetails array.
   * @param buyer The address of the buyer.
   * @param nonce The nonce of the poster info.
   * @param expiry The expiry date of the poster info.
   * @param totalCost The total cost of all of the posters being minted.
   * @param payslips The payslips for the mint.
   */
  struct PosterMintPass {
    PosterMintDetails[] mintDetails;
    address buyer;
    uint256 nonce;
    uint256 expiry;
    uint256 totalCost;
    Payslip[] payslips;
  }

  function mint(PosterMintPass calldata mintPass, bytes calldata signature, address signer) external payable;
}

// File contracts/interfaces/internal/IPosters.sol

pragma solidity ^0.8.17;

interface IPosters {
  error NotPosterMinter();

  /**
   * @dev Emitted when a poster is minted.
   * @param to The address of the poster owner.
   * @param id The token id of the poster.
   * @param amount The amount of posters minted.
   */
  event PosterMinted(address indexed to, uint256 indexed id, uint256 amount);

  /**
   * @dev Emitted when the base uri is set.
   * @param baseUri The base uri of the poster.
   */
  event BaseUriSet(string baseUri);

  function mint(address _to, uint256 _id, uint256 _amount) external;

  function setBaseUri(string calldata _baseUri) external;

  function uri(uint256 _id) external view returns (string memory);
}

// File contracts/interfaces/internal/IRoleAuthority.sol

pragma solidity ^0.8.17;

interface IRoleAuthority {
  function isOperator(address _address) external view returns (bool);

  function is721Minter(address _address) external view returns (bool);

  function isMintPassSigner(address _address) external view returns (bool);

  function isPosterMinter(address _address) external view returns (bool);

  function isPosterSigner(address _address) external view returns (bool);
}

// File contracts/deca-posters/PosterMinterV2.sol

pragma solidity ^0.8.17;

/**
 * @title PosterMinterV2 contract.
 * @notice The contract that mints Deca Posters.
 * @author j6i, 0x-jj
 */
contract PosterMinterV2 is IPosterMinterV2, ReentrancyGuard {
  /*//////////////////////////////////////////////////////////////
                              STORAGE
    //////////////////////////////////////////////////////////////*/

  /**
   * @notice The address of the RoleAuthority used to determine whether an address has some admin role.
   */
  IRoleAuthority public immutable roleAuthority;

  /**
   * @notice The address of the Posters contract.
   */
  IPosters public immutable posters;

  /**
   * @notice Is the poster hash used.
   */
  mapping(bytes32 => bool) public isMintPassUsed;

  /**
   * @notice Poster tokenId to whether the owner has claimed their free mint.
   */
  mapping(uint256 => bool) public ownerMinted;

  /*//////////////////////////////////////////////////////////////
                              CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

  constructor(address _roleAuthority, address _posters) {
    if (_roleAuthority == address(0) || _posters == address(0)) revert ZeroAddress();

    roleAuthority = IRoleAuthority(_roleAuthority);
    posters = IPosters(_posters);
  }

  /*//////////////////////////////////////////////////////////////
                                 EXTERNAL
    //////////////////////////////////////////////////////////////*/

  /**
   * @notice The mint function for posters.
   * @param mintPass The information required to mint a poster, signed by Deca.
   * @param signature The signature that corresponds to the mint pass.
   * @param signer The signer of the mint pass.
   */
  function mint(
    PosterMintPass calldata mintPass,
    bytes calldata signature,
    address signer
  ) external payable nonReentrant {
    _verifyMintPass(mintPass, signature, signer);

    for (uint256 i = 0; i < mintPass.mintDetails.length; i++) {
      _mintPoster(mintPass.mintDetails[i], mintPass.buyer);
    }

    uint256 totalCost = 0;

    for (uint256 i = 0; i < mintPass.payslips.length; i++) {
      Payslip memory payslip = mintPass.payslips[i];

      if (payslip.amountInWei != 0) {
        totalCost += payslip.amountInWei;
        (bool succeeded, ) = payslip.recipient.call{value: payslip.amountInWei}("");
        if (!succeeded) revert TransferFailed();
      }
    }

    if (totalCost != mintPass.totalCost) revert CostMismatch();

    uint256 excess = msg.value - mintPass.totalCost;
    if (excess > 0) {
      (bool successfullyReturned, ) = msg.sender.call{value: excess}("");
      if (!successfullyReturned) revert TransferFailed();
    }
  }

  /*//////////////////////////////////////////////////////////////
                                 INTERNAL
    //////////////////////////////////////////////////////////////*/

  function _mintPoster(PosterMintDetails calldata details, address to) internal {
    // Verify the mint details
    _verifyMintDetails(details);

    // Mint
    posters.mint(to, details.tokenId, details.amount);
  }

  function _verifyMintDetails(PosterMintDetails calldata details) internal {
    // Ensure the amount is greater than 0
    if (details.amount == 0) {
      revert CannotMintZeroAmount();
    }

    // Record owner mint if needed
    if (details.ownerMint) {
      if (ownerMinted[details.tokenId]) {
        revert OwnerAlreadyMinted();
      }

      ownerMinted[details.tokenId] = true;
    }
  }

  /**
   * @notice Used to verify the arguments passed to the mint functions.
   * @param mintPass The mint pass struct.
   * @param signature The signer of the mint info.
   * @param signer The signer of the mint info.
   */
  function _verifyMintPass(PosterMintPass calldata mintPass, bytes calldata signature, address signer) internal {
    // Ensure there are mints
    if (mintPass.mintDetails.length == 0) {
      revert NoMintDetails();
    }

    // Ensure enough ETH was received
    if (mintPass.totalCost > msg.value) {
      revert NotEnoughEth();
    }

    // Ensure signature is not expired
    if (mintPass.expiry < block.timestamp) {
      revert SignatureExpired();
    }

    // Ensure the signer has the correct role
    if (!roleAuthority.isPosterSigner(signer)) {
      revert NotSigner();
    }

    // Verify there are payslips
    if (mintPass.payslips.length == 0) {
      revert MissingPaylips();
    }

    // Compute hash
    bytes32 computedHash = _hashMintPass(mintPass);

    // Ensure signature has not already been used
    if (isMintPassUsed[computedHash]) revert HashRepeated();

    // Set hash as used
    isMintPassUsed[computedHash] = true;

    // Ensure the signature is valid
    if (!_verifySignature(computedHash, signature, signer)) revert ProofInvalid();
  }

  /**
   * @notice Used to compute the digest, and verify the signature.
   * @param messageHash The hash of the message.
   * @param signature The signature of the message.
   * @param signer The signer of the message.
   */
  function _verifySignature(
    bytes32 messageHash,
    bytes calldata signature,
    address signer
  ) internal pure returns (bool) {
    return signer == ECDSA.recover(ECDSA.toEthSignedMessageHash(messageHash), signature);
  }

  /**
   * @notice Used to compute the hash of the mint pass.
   * @param mintPass The mint pass.
   */
  function _hashMintPass(PosterMintPass calldata mintPass) internal pure returns (bytes32) {
    return
      keccak256(
        abi.encodePacked(
          _hashMintDetailsArray(mintPass.mintDetails),
          mintPass.buyer,
          mintPass.nonce,
          mintPass.expiry,
          _hashPayslips(mintPass.payslips)
        )
      );
  }

  /**
   * @notice Used to compute the hash of an array of poster mint details.
   * @param detailsArray The mint pass.
   */
  function _hashMintDetailsArray(PosterMintDetails[] calldata detailsArray) internal pure returns (bytes32) {
    bytes32[] memory hashes = new bytes32[](detailsArray.length);

    for (uint256 i = 0; i < detailsArray.length; i++) {
      PosterMintDetails calldata details = detailsArray[i];
      hashes[i] = keccak256(abi.encodePacked(details.tokenId, details.amount, details.ownerMint));
    }

    return keccak256(abi.encodePacked(hashes));
  }

  /**
   * @notice This function is used to compute the hash for an array of Payslip structs.
   * @param payslips Array of Payslip structs
   * @return payslipsHash Hash of the Payslip structs
   */
  function _hashPayslips(Payslip[] memory payslips) internal pure returns (bytes32) {
    bytes32[] memory encodedPayslips = new bytes32[](payslips.length);
    for (uint256 i = 0; i < payslips.length; i++) {
      encodedPayslips[i] = keccak256(abi.encodePacked(payslips[i].recipient, payslips[i].amountInWei));
    }

    return keccak256(abi.encodePacked(encodedPayslips));
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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0000000000000000000000007bcbbb69272937edd5b7b5bdd4a8ccd159c5dfbd000000000000000000000000a08c8b2cd978282bc3f2bbc62179d7120bd912a3

-----Decoded View---------------
Arg [0] : _roleAuthority (address): 0x7BCbbb69272937eDD5b7B5Bdd4a8cCd159C5dfbD
Arg [1] : _posters (address): 0xA08C8B2cd978282Bc3F2bbc62179d7120bd912A3

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007bcbbb69272937edd5b7b5bdd4a8ccd159c5dfbd
Arg [1] : 000000000000000000000000a08c8b2cd978282bc3f2bbc62179d7120bd912a3

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