ETH Price: $2,687.29 (+0.70%)

Token

AsciiPunks (ASC)
 

Overview

Max Total Supply

2,048 ASC

Holders

810

Market

Volume (24H)

N/A

Min Price (24H)

N/A

Max Price (24H)

N/A
Balance
4 ASC
0x5283c1e77e9c434d55eae0b3d96a788b40cbbf8f
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OVERVIEW

The ASCIIPunks grew out of a realization that many of the NFTs we trade and collect today are nothing more than tokens with a hardcoded link to a centralized server containing metadata. With many NFT's on the market, you have to trust that whoever is hosting the actual image k...

# Exchange Pair Price  24H Volume % Volume
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Contract Source Code Verified (Exact Match)

Contract Name:
AsciiPunks

Compiler Version
v0.8.3+commit.8d00100c

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 11 : AsciiPunks.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "./AsciiPunkFactory.sol";
import "./ERC721Metadata.sol";
import "./PaymentSplitter.sol";

contract AsciiPunks is ERC721Metadata, PaymentSplitter {
  using Address for address;
  using Strings for uint256;

  // EVENTS
  event Transfer(
    address indexed from,
    address indexed to,
    uint256 indexed tokenId
  );

  event Approval(
    address indexed owner,
    address indexed approved,
    uint256 indexed tokenId
  );

  event ApprovalForAll(
    address indexed owner,
    address indexed operator,
    bool approved
  );

  event Generated(uint256 indexed index, address indexed a, string value);

  mapping(uint256 => uint256) internal idToSeed;
  mapping(uint256 => uint256) internal seedToId;
  mapping(uint256 => address) internal idToOwner;
  mapping(address => uint256[]) internal ownerToIds;
  mapping(uint256 => uint256) internal idToOwnerIndex;
  mapping(address => mapping(address => bool)) internal ownerToOperators;
  mapping(uint256 => address) internal idToApproval;
  uint256 internal numTokens = 0;
  uint256 public constant TOKEN_LIMIT = 2048;
  bool public hasSaleStarted = false;

  bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;
  bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;

  modifier validNFToken(uint256 tokenId) {
    require(
      idToOwner[tokenId] != address(0),
      "ERC721: query for nonexistent token"
    );
    _;
  }

  modifier canOperate(uint256 tokenId) {
    address owner = idToOwner[tokenId];

    require(
      owner == _msgSender() || ownerToOperators[owner][_msgSender()],
      "ERC721: approve caller is not owner nor approved for all"
    );
    _;
  }

  modifier canTransfer(uint256 tokenId) {
    address tokenOwner = idToOwner[tokenId];

    require(
      tokenOwner == _msgSender() ||
        idToApproval[tokenId] == _msgSender() ||
        ownerToOperators[tokenOwner][_msgSender()],
      "ERC721: transfer caller is not owner nor approved"
    );
    _;
  }

  constructor() {
    _registerInterface(_INTERFACE_ID_ERC721);
    _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
  }

  function createPunk(uint256 seed) external payable returns (string memory) {
    return _mint(_msgSender(), seed);
  }

  function calculatePrice() internal view returns (uint256) {
    uint256 price;
    if (numTokens < 256) {
      price = 50000000000000000;
    } else if (numTokens >= 256 && numTokens < 512) {
      price = 100000000000000000;
    } else if (numTokens >= 512 && numTokens < 1024) {
      price = 200000000000000000;
    } else if (numTokens >= 1024 && numTokens < 1536) {
      price = 300000000000000000;
    } else {
      price = 400000000000000000;
    }
    return price;
  }

  function _mint(address to, uint256 _seed) internal returns (string memory) {
    require(hasSaleStarted == true, "Sale hasn't started");
    require(to != address(0), "ERC721: mint to the zero address");
    require(
      numTokens < TOKEN_LIMIT,
      "ERC721: maximum number of tokens already minted"
    );
    require(msg.value >= calculatePrice(), "ERC721: insufficient ether");

    uint256 seed = uint256(
      keccak256(abi.encodePacked(_seed, block.timestamp, msg.sender, numTokens))
    );

    require(seedToId[seed] == 0, "ERC721: seed already used");

    uint256 id = numTokens + 1;

    idToSeed[id] = seed;
    seedToId[seed] = id;

    string memory punk = AsciiPunkFactory.draw(idToSeed[id]);
    emit Generated(id, to, punk);

    numTokens = numTokens + 1;
    _registerToken(to, id);

    emit Transfer(address(0), to, id);

    return punk;
  }

  function _registerToken(address to, uint256 tokenId) internal {
    require(idToOwner[tokenId] == address(0));
    idToOwner[tokenId] = to;

    ownerToIds[to].push(tokenId);
    uint256 length = ownerToIds[to].length;
    idToOwnerIndex[tokenId] = length - 1;
  }

  function draw(uint256 tokenId)
    external
    view
    validNFToken(tokenId)
    returns (string memory)
  {
    string memory uri = AsciiPunkFactory.draw(idToSeed[tokenId]);
    return uri;
  }

  function totalSupply() public view returns (uint256) {
    return numTokens;
  }

  function tokenByIndex(uint256 index) public view returns (uint256) {
    require(index < numTokens, "ERC721Enumerable: global index out of bounds");
    return index;
  }

  function tokenOfOwnerByIndex(address owner, uint256 _index)
    external
    view
    returns (uint256)
  {
    require(
      _index < ownerToIds[owner].length,
      "ERC721Enumerable: owner index out of bounds"
    );
    return ownerToIds[owner][_index];
  }

  function balanceOf(address owner) external view returns (uint256) {
    require(owner != address(0), "ERC721: balance query for the zero address");
    return ownerToIds[owner].length;
  }

  function ownerOf(uint256 tokenId) external view returns (address) {
    return _ownerOf(tokenId);
  }

  function _ownerOf(uint256 tokenId)
    internal
    view
    validNFToken(tokenId)
    returns (address)
  {
    address owner = idToOwner[tokenId];
    require(owner != address(0), "ERC721: query for nonexistent token");
    return owner;
  }

  function transferFrom(
    address from,
    address to,
    uint256 tokenId
  ) external validNFToken(tokenId) canTransfer(tokenId) {
    address tokenOwner = idToOwner[tokenId];
    require(tokenOwner == from, "ERC721: transfer of token that is not own");
    require(to != address(0), "ERC721: transfer to the zero address");
    _transfer(to, tokenId);
  }

  function _transfer(address to, uint256 tokenId) internal {
    address from = idToOwner[tokenId];
    _clearApproval(tokenId);
    emit Approval(from, to, tokenId);

    _removeNFToken(from, tokenId);
    _registerToken(to, tokenId);

    emit Transfer(from, to, tokenId);
  }

  function _removeNFToken(address from, uint256 tokenId) internal {
    require(idToOwner[tokenId] == from);
    delete idToOwner[tokenId];

    uint256 tokenToRemoveIndex = idToOwnerIndex[tokenId];
    uint256 lastTokenIndex = ownerToIds[from].length - 1;

    if (lastTokenIndex != tokenToRemoveIndex) {
      uint256 lastToken = ownerToIds[from][lastTokenIndex];
      ownerToIds[from][tokenToRemoveIndex] = lastToken;
      idToOwnerIndex[lastToken] = tokenToRemoveIndex;
    }

    ownerToIds[from].pop();
  }

  function approve(address approved, uint256 tokenId)
    external
    validNFToken(tokenId)
    canOperate(tokenId)
  {
    address owner = idToOwner[tokenId];
    require(approved != owner, "ERC721: approval to current owner");
    idToApproval[tokenId] = approved;
    emit Approval(owner, approved, tokenId);
  }

  function _clearApproval(uint256 tokenId) private {
    if (idToApproval[tokenId] != address(0)) {
      delete idToApproval[tokenId];
    }
  }

  function getApproved(uint256 tokenId)
    external
    view
    validNFToken(tokenId)
    returns (address)
  {
    return idToApproval[tokenId];
  }

  function setApprovalForAll(address operator, bool approved) external {
    require(operator != _msgSender(), "ERC721: approve to caller");
    ownerToOperators[_msgSender()][operator] = approved;
    emit ApprovalForAll(_msgSender(), operator, approved);
  }

  function isApprovedForAll(address owner, address operator)
    external
    view
    returns (bool)
  {
    return ownerToOperators[owner][operator];
  }

  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes calldata data
  ) external {
    _safeTransferFrom(from, to, tokenId, data);
  }

  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId
  ) external {
    _safeTransferFrom(from, to, tokenId, "");
  }

  function _safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes memory data
  ) private validNFToken(tokenId) canTransfer(tokenId) {
    address tokenOwner = idToOwner[tokenId];
    require(tokenOwner == from, "ERC721: transfer of token that is not own");
    require(to != address(0), "ERC721: transfer to the zero address");

    _transfer(to, tokenId);
    require(
      _checkOnERC721Received(from, to, tokenId, data),
      "ERC721: transfer to non ERC721Receiver implementer"
    );
  }

  function tokenURI(uint256 tokenId)
    external
    view
    validNFToken(tokenId)
    returns (string memory)
  {
    string memory uri = _baseURI();
    return
      bytes(uri).length > 0
        ? string(abi.encodePacked(uri, tokenId.toString()))
        : "";
  }

  function startSale() public onlyOwner {
    hasSaleStarted = true;
  }

  function pauseSale() public onlyOwner {
    hasSaleStarted = false;
  }

  function _checkOnERC721Received(
    address from,
    address to,
    uint256 tokenId,
    bytes memory data
  ) private returns (bool) {
    if (to.isContract()) {
      try
        IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data)
      returns (bytes4 retval) {
        return retval == IERC721Receiver(to).onERC721Received.selector;
      } catch (bytes memory reason) {
        if (reason.length == 0) {
          revert("ERC721: transfer to non ERC721Receiver implementer");
        } else {
          assembly {
            revert(add(32, reason), mload(reason))
          }
        }
      }
    } else {
      return true;
    }
  }
}

File 2 of 11 : AsciiPunkFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

library AsciiPunkFactory {
  uint256 private constant TOP_COUNT = 55;
  uint256 private constant EYE_COUNT = 48;
  uint256 private constant NOSE_COUNT = 9;
  uint256 private constant MOUTH_COUNT = 32;

  function draw(uint256 seed) public pure returns (string memory) {
    uint256 rand = uint256(keccak256(abi.encodePacked(seed)));

    string memory top = _chooseTop(rand);
    string memory eyes = _chooseEyes(rand);
    string memory mouth = _chooseMouth(rand);

    string memory chin = unicode"   │    │   \n" unicode"   └──┘ │   \n";
    string memory neck = unicode"     │  │   \n" unicode"     │  │   \n";

    return string(abi.encodePacked(top, eyes, mouth, chin, neck));
  }

  function _chooseTop(uint256 rand) internal pure returns (string memory) {
    string[TOP_COUNT] memory tops =
      [
        unicode"   ┌───┐    \n"
        unicode"   │   ┼┐   \n"
        unicode"   ├────┼┼  \n",
        unicode"   ┌┬┬┬┬┐   \n"
        unicode"   ╓┬┬┬┬╖   \n"
        unicode"   ╙┴┴┴┴╜   \n",
        unicode"   ╒════╕   \n"
        unicode"  ┌┴────┴┐  \n"
        unicode"  └┬────┬┘  \n",
        unicode"   ╒════╕   \n"
        unicode"   │□□□□│   \n"
        unicode"  └┬────┬┘  \n",
        unicode"   ╒════╕   \n"
        unicode"   │    │   \n"
        unicode" └─┬────┬─┘ \n",
        unicode"    ◙◙◙◙    \n"
        unicode"   ▄████▄   \n"
        unicode"   ┌────┐   \n",
        unicode"   ┌───┐    \n"
        unicode"┌──┤   └┐   \n"
        unicode"└──┼────┤   \n",
        unicode"    ┌───┐   \n"
        unicode"   ┌┘   ├──┐\n"
        unicode"   ├────┼──┘\n",
        unicode"   ┌────┐/  \n"
        unicode"┌──┴────┴──┐\n"
        unicode"└──┬────┬──┘\n",
        unicode"   ╒════╕   \n"
        unicode" ┌─┴────┴─┐ \n"
        unicode" └─┬────┬─┘ \n",
        unicode"  ┌──────┐  \n"
        unicode"  │▲▲▲▲▲▲│  \n"
        unicode"  └┬────┬┘  \n",
        unicode"  ┌┌────┐┐  \n"
        unicode"  ││┌──┐││  \n"
        unicode"  └┼┴──┴┼┘  \n",
        unicode"   ┌────┐   \n"
        unicode"  ┌┘─   │   \n"
        unicode"  └┌────┐   \n",
        unicode"            \n"
        unicode"   ┌┬┬┬┬┐   \n"
        unicode"   ├┴┴┴┴┤   \n",
        unicode"            \n"
        unicode"    ╓┬╥┐    \n"
        unicode"   ┌╨┴╨┴┐   \n",
        unicode"            \n"
        unicode"   ╒╦╦╦╦╕   \n"
        unicode"   ╞╩╩╩╩╡   \n",
        unicode"            \n"
        unicode"            \n"
        unicode"   ┌┼┼┼┼┐   \n",
        unicode"            \n"
        unicode"    ││││    \n"
        unicode"   ┌┼┼┼┼┐   \n",
        unicode"      ╔     \n"
        unicode"     ╔║     \n"
        unicode"   ┌─╫╫─┐   \n",
        unicode"            \n"
        unicode"    ║║║║    \n"
        unicode"   ┌╨╨╨╨┐   \n",
        unicode"            \n"
        unicode"   ▐▐▐▌▌▌   \n"
        unicode"   ┌────┐   \n",
        unicode"            \n"
        unicode"   \\/////   \n"
        unicode"   ┌────┐   \n",
        unicode"    ┐ ┌     \n"
        unicode"   ┐││││┌   \n"
        unicode"   ┌────┐   \n",
        unicode"  ┌┐ ┐┌┐┌┐  \n"
        unicode"  └└┐││┌┘   \n"
        unicode"   ┌┴┴┴┴┐   \n",
        unicode"  ┐┐┐┐┐     \n"
        unicode"  └└└└└┐    \n"
        unicode"   └└└└└┐   \n",
        unicode"            \n"
        unicode"   ││││││   \n"
        unicode"   ┌────┐   \n",
        unicode"            \n"
        unicode"    ╓╓╓╓    \n"
        unicode"   ┌╨╨╨╨┐   \n",
        unicode"    ╔╔╗╗╗   \n"
        unicode"   ╔╔╔╗╗╗╗  \n"
        unicode"  ╔╝╝║ ╚╚╗  \n",
        unicode"   ╔╔╔╔╔╗   \n"
        unicode"  ╔╔╔╔╔╗║╗  \n"
        unicode"  ╝║╨╨╨╨║╚  \n",
        unicode"   ╔╔═╔═╔   \n"
        unicode"   ╔╩╔╩╔╝   \n"
        unicode"   ┌────┐   \n",
        unicode"            \n"
        unicode"     ///    \n"
        unicode"   ┌────┐   \n",
        unicode"     ╔╗╔╗   \n"
        unicode"    ╔╗╔╗╝   \n"
        unicode"   ┌╔╝╔╝┐   \n",
        unicode"     ╔╔╔╔╝  \n"
        unicode"    ╔╝╔╝    \n"
        unicode"   ┌╨╨╨─┐   \n",
        unicode"       ╔╗   \n"
        unicode"    ╔╔╔╗╝   \n"
        unicode"   ┌╚╚╝╝┐   \n",
        unicode"   ╔════╗   \n"
        unicode"  ╔╚╚╚╝╝╝╗  \n"
        unicode"  ╟┌────┐╢  \n",
        unicode"    ╔═╗     \n"
        unicode"    ╚╚╚╗    \n"
        unicode"   ┌────┐   \n",
        unicode"            \n"
        unicode"            \n"
        unicode"   ┌╨╨╨╨┐   \n",
        unicode"            \n"
        unicode"    ⌂⌂⌂⌂    \n"
        unicode"   ┌────┐   \n",
        unicode"   ┌────┐   \n"
        unicode"   │   /└┐  \n"
        unicode"   ├────┐/  \n",
        unicode"            \n"
        unicode"   ((((((   \n"
        unicode"   ┌────┐   \n",
        unicode"   ┌┌┌┌┌┐   \n"
        unicode"   ├┘┘┘┘┘   \n"
        unicode"   ┌────┐   \n",
        unicode"   «°┐      \n"
        unicode"    │╪╕     \n"
        unicode"   ┌└┼──┐   \n",
        unicode"  <° °>   § \n"
        unicode"   \\'/   /  \n"
        unicode"   {())}}   \n",
        unicode"   ██████   \n"
        unicode"  ██ ██ ██  \n"
        unicode" █ ██████ █ \n",
        unicode"    ████    \n"
        unicode"   ██◙◙██   \n"
        unicode"   ┌─▼▼─┐   \n",
        unicode"   ╓╖  ╓╖   \n"
        unicode"  °╜╚╗╔╝╙°  \n"
        unicode"   ┌─╨╨─┐   \n",
        unicode"   ± ±± ±   \n"
        unicode"   ◙◙◙◙◙◙   \n"
        unicode"   ┌────┐   \n",
        unicode"  ♫     ♪   \n"
        unicode"    ♪     ♫ \n"
        unicode" ♪ ┌────┐   \n",
        unicode"    /≡≡\\    \n"
        unicode"   /≡≡≡≡\\   \n"
        unicode"  /┌────┐\\  \n",
        unicode"            \n"
        unicode"   ♣♥♦♠♣♥   \n"
        unicode"   ┌────┐   \n",
        unicode"     [⌂]    \n"
        unicode"      │     \n"
        unicode"   ┌────┐   \n",
        unicode"  /\\/\\/\\/\\  \n"
        unicode"  \\\\/\\/\\//  \n"
        unicode"   ┌────┐   \n",
        unicode"    ↑↑↓↓    \n"
        unicode"   ←→←→AB   \n"
        unicode"   ┌────┐   \n",
        unicode"    ┌─┬┐    \n"
        unicode"   ┌┘┌┘└┐   \n"
        unicode"   ├─┴──┤   \n",
        unicode"    ☼  ☼    \n"
        unicode"     \\/     \n"
        unicode"   ┌────┐   \n"
      ];
    uint256 topId = rand % TOP_COUNT;
    return tops[topId];
  }

  function _chooseEyes(uint256 rand) internal pure returns (string memory) {
    string[EYE_COUNT] memory leftEyes =
      [
        unicode"◕",
        unicode"*",
        unicode"♥",
        unicode"X",
        unicode"⊙",
        unicode"˘",
        unicode"α",
        unicode"◉",
        unicode"☻",
        unicode"¬",
        unicode"^",
        unicode"═",
        unicode"┼",
        unicode"┬",
        unicode"■",
        unicode"─",
        unicode"û",
        unicode"╜",
        unicode"δ",
        unicode"│",
        unicode"┐",
        unicode"┌",
        unicode"┌",
        unicode"╤",
        unicode"/",
        unicode"\\",
        unicode"/",
        unicode"\\",
        unicode"╦",
        unicode"♥",
        unicode"♠",
        unicode"♦",
        unicode"╝",
        unicode"◄",
        unicode"►",
        unicode"◄",
        unicode"►",
        unicode"I",
        unicode"╚",
        unicode"╔",
        unicode"╙",
        unicode"╜",
        unicode"╓",
        unicode"╥",
        unicode"$",
        unicode"○",
        unicode"N",
        unicode"x"
      ];

    string[EYE_COUNT] memory rightEyes =
      [
        unicode"◕",
        unicode"*",
        unicode"♥",
        unicode"X",
        unicode"⊙",
        unicode"˘",
        unicode"α",
        unicode"◉",
        unicode"☻",
        unicode"¬",
        unicode"^",
        unicode"═",
        unicode"┼",
        unicode"┬",
        unicode"■",
        unicode"─",
        unicode"û",
        unicode"╜",
        unicode"δ",
        unicode"│",
        unicode"┐",
        unicode"┐",
        unicode"┌",
        unicode"╤",
        unicode"\\",
        unicode"/",
        unicode"/",
        unicode"\\",
        unicode"╦",
        unicode"♠",
        unicode"♣",
        unicode"♦",
        unicode"╝",
        unicode"►",
        unicode"◄",
        unicode"◄",
        unicode"◄",
        unicode"I",
        unicode"╚",
        unicode"╗",
        unicode"╜",
        unicode"╜",
        unicode"╓",
        unicode"╥",
        unicode"$",
        unicode"○",
        unicode"N",
        unicode"x"
      ];
    uint256 eyeId = rand % EYE_COUNT;

    string memory leftEye = leftEyes[eyeId];
    string memory rightEye = rightEyes[eyeId];
    string memory nose = _chooseNose(rand);

    string memory forehead = unicode"   │    ├┐  \n";
    string memory leftFace = unicode"   │";
    string memory rightFace = unicode" └│  \n";

    return
      string(
        abi.encodePacked(
          forehead,
          leftFace,
          leftEye,
          " ",
          rightEye,
          rightFace,
          nose
        )
      );
  }

  function _chooseMouth(uint256 rand) internal pure returns (string memory) {
    string[MOUTH_COUNT] memory mouths =
      [
        unicode"   │    │   \n"
        unicode"   │──  │   \n",
        unicode"   │    │   \n"
        unicode"   │δ   │   \n",
        unicode"   │    │   \n"
        unicode"   │─┬  │   \n",
        unicode"   │    │   \n"
        unicode"   │(─) │   \n",
        unicode"   │    │   \n"
        unicode"   │[─] │   \n",
        unicode"   │    │   \n"
        unicode"   │<─> │   \n",
        unicode"   │    │   \n"
        unicode"   │╙─  │   \n",
        unicode"   │    │   \n"
        unicode"   │─╜  │   \n",
        unicode"   │    │   \n"
        unicode"   │└─┘ │   \n",
        unicode"   │    │   \n"
        unicode"   │┌─┐ │   \n",
        unicode"   │    │   \n"
        unicode"   │╓─  │   \n",
        unicode"   │    │   \n"
        unicode"   │─╖  │   \n",
        unicode"   │    │   \n"
        unicode"   │┼─┼ │   \n",
        unicode"   │    │   \n"
        unicode"   │──┼ │   \n",
        unicode"   │    │   \n"
        unicode"   │«─» │   \n",
        unicode"   │    │   \n"
        unicode"   │──  │   \n",
        unicode" ∙ │    │   \n"
        unicode" ∙───   │   \n",
        unicode" ∙ │    │   \n"
        unicode" ∙───)  │   \n",
        unicode" ∙ │    │   \n"
        unicode" ∙───]  │   \n",
        unicode"   │⌐¬  │   \n"
        unicode" √────  │   \n",
        unicode"   │╓╖  │   \n"
        unicode"   │──  │   \n",
        unicode"   │~~  │   \n"
        unicode"   │/\\  │   \n",
        unicode"   │    │   \n"
        unicode"   │══  │   \n",
        unicode"   │    │   \n"
        unicode"   │▼▼  │   \n",
        unicode"   │⌐¬  │   \n"
        unicode"   │O   │   \n",
        unicode"   │    │   \n"
        unicode"   │O   │   \n",
        unicode" ∙ │⌐¬  │   \n"
        unicode" ∙───   │   \n",
        unicode" ∙ │⌐¬  │   \n"
        unicode" ∙───)  │   \n",
        unicode" ∙ │⌐¬  │   \n"
        unicode" ∙───]  │   \n",
        unicode"   │⌐¬  │   \n"
        unicode"   │──  │   \n",
        unicode"   │⌐-¬ │   \n"
        unicode"   │    │   \n",
        unicode"   │┌-┐ │   \n"
        unicode"   ││ │ │   \n"
      ];

    uint256 mouthId = rand % MOUTH_COUNT;

    return mouths[mouthId];
  }

  function _chooseNose(uint256 rand) internal pure returns (string memory) {
    string[NOSE_COUNT] memory noses =
      [
        unicode"└",
        unicode"╘",
        unicode"<",
        unicode"└",
        unicode"┌",
        unicode"^",
        unicode"└",
        unicode"┼",
        unicode"Γ"
      ];

    uint256 noseId = rand % NOSE_COUNT;
    string memory nose = noses[noseId];
    return string(abi.encodePacked(unicode"   │ ", nose, unicode"  └┘  \n"));
  }
}

File 3 of 11 : ERC165.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract ERC165 {
  mapping(bytes4 => bool) private _supportedInterfaces;

  bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

  constructor() {
    _registerInterface(_INTERFACE_ID_ERC165);
  }

  function supportsInterface(bytes4 interfaceId) external view returns (bool) {
    return _supportedInterfaces[interfaceId];
  }

  function _registerInterface(bytes4 interfaceId) internal {
    require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
    _supportedInterfaces[interfaceId] = true;
  }
}

File 4 of 11 : ERC721Metadata.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "./ERC165.sol";

contract ERC721Metadata is Ownable, ERC165 {
  bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;
  string private _baseTokenURI;
  string private _NFTName = "AsciiPunks";
  string private _NFTSymbol = "ASC";

  constructor() {
    _registerInterface(_INTERFACE_ID_ERC721_METADATA);
    _baseTokenURI = "https://api.asciipunks.com/punks/";
  }

  function name() external view returns (string memory) {
    return _NFTName;
  }

  function symbol() external view returns (string memory) {
    return _NFTSymbol;
  }

  function setBaseURI(string calldata newBaseTokenURI) public onlyOwner {
    _baseTokenURI = newBaseTokenURI;
  }

  function baseURI() public view returns (string memory) {
    return _baseURI();
  }

  function _baseURI() internal view returns (string memory) {
    return _baseTokenURI;
  }
}

File 5 of 11 : PaymentSplitter.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";

/**
 * @title PaymentSplitter
 * @dev This contract allows to split Ether payments among a group of accounts. The sender does not need to be aware
 * that the Ether will be split in this way, since it is handled transparently by the contract.
 *
 * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each
 * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim
 * an amount proportional to the percentage of total shares they were assigned.
 *
 * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the
 * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release}
 * function.
 */
contract PaymentSplitter is Context {
  event PayeeAdded(address account, uint256 shares);
  event PaymentReleased(address to, uint256 amount);
  event PaymentReceived(address from, uint256 amount);

  uint256 private _totalShares;
  uint256 private _totalReleased;

  mapping(address => uint256) private _shares;
  mapping(address => uint256) private _released;
  address[] private _payees;

  /**
   * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at
   * the matching position in the `shares` array.
   *
   * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no
   * duplicates in `payees`.
   */
  constructor() {
    address[2] memory initialPayees =
      [
        address(0x9386efb02a55A1092dC19f0E68a9816DDaAbDb5b),
        address(0xF2353AD0930B9F7cf16b4b8300B843349581E817)
      ];
    uint256[2] memory initialShares = [uint256(7), uint256(3)];

    for (uint256 i = 0; i < initialPayees.length; i++) {
      _addPayee(initialPayees[i], initialShares[i]);
    }
  }

  /**
   * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully
   * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the
   * reliability of the events, and not the actual splitting of Ether.
   *
   * To learn more about this see the Solidity documentation for
   * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback
   * functions].
   */
  receive() external payable {
    emit PaymentReceived(_msgSender(), msg.value);
  }

  /**
   * @dev Getter for the total shares held by payees.
   */
  function totalShares() public view returns (uint256) {
    return _totalShares;
  }

  /**
   * @dev Getter for the total amount of Ether already released.
   */
  function totalReleased() public view returns (uint256) {
    return _totalReleased;
  }

  /**
   * @dev Getter for the amount of shares held by an account.
   */
  function shares(address account) public view returns (uint256) {
    return _shares[account];
  }

  /**
   * @dev Getter for the amount of Ether already released to a payee.
   */
  function released(address account) public view returns (uint256) {
    return _released[account];
  }

  /**
   * @dev Getter for the address of the payee number `index`.
   */
  function payee(uint256 index) public view returns (address) {
    return _payees[index];
  }

  /**
   * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the
   * total shares and their previous withdrawals.
   */
  function release(address payable account) public virtual {
    require(_shares[account] > 0, "PaymentSplitter: account has no shares");

    uint256 totalReceived = address(this).balance + _totalReleased;
    uint256 payment =
      (totalReceived * _shares[account]) / _totalShares - _released[account];

    require(payment != 0, "PaymentSplitter: account is not due payment");

    _released[account] = _released[account] + payment;
    _totalReleased = _totalReleased + payment;

    Address.sendValue(account, payment);
    emit PaymentReleased(account, payment);
  }

  /**
   * @dev Add a new payee to the contract.
   * @param account The address of the payee to add.
   * @param shares_ The number of shares owned by the payee.
   */
  function _addPayee(address account, uint256 shares_) private {
    require(
      account != address(0),
      "PaymentSplitter: account is the zero address"
    );
    require(shares_ > 0, "PaymentSplitter: shares are 0");
    require(
      _shares[account] == 0,
      "PaymentSplitter: account already has shares"
    );

    _payees.push(account);
    _shares[account] = shares_;
    _totalShares = _totalShares + shares_;
    emit PayeeAdded(account, shares_);
  }
}

File 6 of 11 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * 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 () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

File 7 of 11 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
}

File 8 of 11 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 9 of 11 : Context.sol
// SPDX-License-Identifier: MIT

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) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 10 of 11 : Strings.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant alphabet = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @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] = alphabet[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

}

File 11 of 11 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {
    "/Users/kyle/workspace/asciipunks/contracts/AsciiPunkFactory.sol": {
      "AsciiPunkFactory": "0x3c24A5DF4F69199962b163CB5762be1E8367CbEb"
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"index","type":"uint256"},{"indexed":true,"internalType":"address","name":"a","type":"address"},{"indexed":false,"internalType":"string","name":"value","type":"string"}],"name":"Generated","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"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"PayeeAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReleased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"TOKEN_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"approved","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"seed","type":"uint256"}],"name":"createPunk","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"draw","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"hasSaleStarted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"payee","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"account","type":"address"}],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseTokenURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"shares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"startSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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