1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
pragma solidity 0.4.26;
library SafeMath {
  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// SPDX-License-Identifier: MIT
// File: @openzeppelin/contracts/utils/Strings.sol
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
pragma solidity ^0.4.13;
contract Ownable {
  address public owner;
  event OwnershipRenounced(address indexed previousOwner);
  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );
  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
contract OwnedUpgradeabilityStorage {
  // Current implementation
  address internal _implementation;
  // Owner of the contract
  address private _upgradeabilityOwner;
  /**
   * @dev Tells the address of the owner
   * @return the address of the owner
   */
  function upgradeabilityOwner() public view returns (address) {
    return _upgradeabilityOwner;
  }
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
pragma solidity ^0.4.13;
contract Ownable {
  address public owner;
  event OwnershipRenounced(address indexed previousOwner);
  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );
  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
pragma solidity 0.8.11;
interface IERC721 {
    function safeTransferFrom(address from, address to, uint256 tokenId) external;
    function transferFrom(address from, address to, uint256 tokenId) external;
}
interface IERC1155 {
    function safeTransferFrom(address from, address to, uint256 tokenId, uint256 amount, bytes calldata data) external;
}
/// @title MerkleValidator enables matching trait-based and collection-based orders for ERC721 and ERC1155 tokens.
/// @author 0age
/// @dev This contract is intended to be called during atomicMatch_ via DELEGATECALL.
contract MerkleValidator {
    /// @dev InvalidProof is thrown on invalid proofs.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX