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Set Approval For...205364612024-08-15 20:37:59138 days ago1723754279IN
0xdC99aFF2...328106CC5
0 ETH0.000209724.54381885
Safe Transfer Fr...201861712024-06-27 23:00:59187 days ago1719529259IN
0xdC99aFF2...328106CC5
0 ETH0.000245134.05057349
Transfer From195941602024-04-06 3:59:59269 days ago1712375999IN
0xdC99aFF2...328106CC5
0 ETH0.0006161510.67982348
Transfer From175882652023-06-29 23:35:47551 days ago1688081747IN
0xdC99aFF2...328106CC5
0 ETH0.0014574925.2630187
Transfer From175877822023-06-29 21:58:23551 days ago1688075903IN
0xdC99aFF2...328106CC5
0 ETH0.0020518735.56539597
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0xdC99aFF2...328106CC5
0 ETH0.0023769541.20007966
Set Approval For...171800492023-05-03 11:59:11608 days ago1683115151IN
0xdC99aFF2...328106CC5
0 ETH0.0032176369.71076949
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0xdC99aFF2...328106CC5
0 ETH0.0010277316.96408707
Safe Transfer Fr...162363462022-12-21 23:26:35741 days ago1671665195IN
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0 ETH0.0007731612.76215617
Set Approval For...161473732022-12-09 13:15:11753 days ago1670591711IN
0xdC99aFF2...328106CC5
0 ETH0.0008337918.06423148
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0xdC99aFF2...328106CC5
0 ETH0.0005035611.59468031
Set Approval For...158609532022-10-30 12:43:47793 days ago1667133827IN
0xdC99aFF2...328106CC5
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Set Approval For...155804712022-09-21 8:02:59832 days ago1663747379IN
0xdC99aFF2...328106CC5
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0xdC99aFF2...328106CC5
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Contract Source Code Verified (Exact Match)

Contract Name:
JerkfaceGenesis

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 150 runs

Other Settings:
default evmVersion
File 1 of 14 : Jerkface.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

//-----------------------------------------------------------------------------
// Jerkface Genesis Collection
//-----------------------------------------------------------------------------
// Author: papaver (@tronicdreams)
//-----------------------------------------------------------------------------

import "./GeneticChain721.sol";

//------------------------------------------------------------------------------
// Jerkface
//------------------------------------------------------------------------------

/**
 * @title Jerkface Genesis Collection
 */
contract JerkfaceGenesis is GeneticChain721
{

    //-------------------------------------------------------------------------
    // fields
    //-------------------------------------------------------------------------

    // token info
    string private _baseUri;
    string private _tokenIpfsHash;

    // contract info
    string public _contractUri;

    //-------------------------------------------------------------------------
    // ctor
    //-------------------------------------------------------------------------

    constructor(
        string memory baseUri_,
        string memory ipfsHash_,
        string memory contractUri_,
        uint16[4] memory pmax,
        uint16[4] memory max)
        GeneticChain721(pmax, max)
    {
        _baseUri       = baseUri_;
        _tokenIpfsHash = ipfsHash_;
        _contractUri   = contractUri_;
    }

    //-------------------------------------------------------------------------
    // accessors
    //-------------------------------------------------------------------------

    function setTokenIpfsHash(string memory hash)
        public
        onlyOwner
    {
        if (bytes(hash).length == 0) {
            delete _tokenIpfsHash;
        } else {
            _tokenIpfsHash = hash;
        }
    }

    //-------------------------------------------------------------------------

    function setBaseTokenURI(string memory baseUri)
        public
        onlyOwner
    {
        _baseUri = baseUri;
    }

    //-------------------------------------------------------------------------
    // ERC721Metadata
    //-------------------------------------------------------------------------

    function baseTokenURI()
        public
        view
        returns (string memory)
    {
        return _baseUri;
    }

    //-------------------------------------------------------------------------

    /**
     * @dev Returns uri of a token.  Not guarenteed token exists.
     */
    function tokenURI(uint256 tokenId)
        override
        public
        view
        returns (string memory)
    {
        return bytes(_tokenIpfsHash).length == 0
            ? string(abi.encodePacked(
                baseTokenURI(), "/", Strings.toString(tokenId)))
            : string(abi.encodePacked(
                baseTokenURI(),
                    "/", _tokenIpfsHash,
                    "/", Strings.toString(tokenId)));
    }

    //-------------------------------------------------------------------------
    // contractUri
    //-------------------------------------------------------------------------

    function setContractURI(string memory contractUri)
        external onlyOwner
    {
        _contractUri = contractUri;
    }

    //-------------------------------------------------------------------------

    function contractURI()
        public view
        returns (string memory)
    {
        return _contractUri;
    }

}

File 2 of 14 : 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 3 of 14 : ERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping (uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping (address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping (uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping (address => mapping (address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor (string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC721).interfaceId
            || interfaceId == type(IERC721Metadata).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0
            ? string(abi.encodePacked(baseURI, tokenId.toString()))
            : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. Empty by default, can be overriden
     * in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual {
        _mint(to, tokenId);
        require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(address from, address to, uint256 tokenId) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    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 {
                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual { }
}

File 4 of 14 : IERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
      * @dev Safely transfers `tokenId` token from `from` to `to`.
      *
      * Requirements:
      *
      * - `from` cannot be the zero address.
      * - `to` cannot be the zero address.
      * - `tokenId` token must exist and be owned by `from`.
      * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
      * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
      *
      * Emits a {Transfer} event.
      */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
}

File 5 of 14 : 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 6 of 14 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {

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

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 7 of 14 : 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 8 of 14 : 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 9 of 14 : 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 10 of 14 : ECDSA.sol
// SPDX-License-Identifier: MIT

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 {
    /**
     * @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) {
        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            // solhint-disable-next-line no-inline-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
        } else if (signature.length == 64) {
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            // solhint-disable-next-line no-inline-assembly
            assembly {
                let vs := mload(add(signature, 0x40))
                r := mload(add(signature, 0x20))
                s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
                v := add(shr(255, vs), 27)
            }
        } else {
            revert("ECDSA: invalid signature length");
        }

        return recover(hash, v, r, s);
    }

    /**
     * @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) {
        // 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 (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): 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.
        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
        require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @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) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @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) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

File 11 of 14 : ERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 12 of 14 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 13 of 14 : GeneticChain721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

//------------------------------------------------------------------------------
// Jerkface Genesis Collection
//------------------------------------------------------------------------------
// Author: papaver (@tronicdreams)
//------------------------------------------------------------------------------

import "openzeppelin-solidity/contracts/access/Ownable.sol";
import "openzeppelin-solidity/contracts/token/ERC721/ERC721.sol";
import "openzeppelin-solidity/contracts/utils/cryptography/ECDSA.sol";
import "openzeppelin-solidity/contracts/utils/Strings.sol";

import "./libraries/State.sol";

//------------------------------------------------------------------------------
// GeneticChain721
//------------------------------------------------------------------------------

/**
 * @title GeneticChain721
 */
abstract contract GeneticChain721 is
    ERC721,
    Ownable
{
    using ECDSA for bytes32;
    using State for State.Data;

    //-------------------------------------------------------------------------
    // constants
    //-------------------------------------------------------------------------


    // erc721 metadata
    string constant private __name   = "Jerkface Genesis";
    string constant private __symbol = "JERKFACE";

    // mint info
    uint256 constant public _tokenOffset = 100;

    // verification address
    address constant private _signer = 0xa98673D426BCf78eA72aeF978F2cFF756d941d2A;

    //-------------------------------------------------------------------------
    // fields
    //-------------------------------------------------------------------------

    // mint data
    uint64[4] public tokenPrice;

    // contract state
    State.Data private _state;

    // track mint count per address
    mapping (address => uint8) private _minted;

    // roles
    mapping (address => bool) private _burnerAddress;

    //-------------------------------------------------------------------------
    // modifiers
    //-------------------------------------------------------------------------

    modifier validTokenId(uint256 tokenId) {
        require(_exists(tokenId), "invalid token");
        _;
    }

    //-------------------------------------------------------------------------

    modifier approvedOrOwner(address operator, uint256 tokenId) {
        require(_isApprovedOrOwner(operator, tokenId));
        _;
    }

    //-------------------------------------------------------------------------

    modifier notLocked() {
        require(!_state.locked(), "contract locked");
        _;
    }

    //-------------------------------------------------------------------------

    modifier isBurner() {
        require(_burnerAddress[_msgSender()], "caller not burner");
        _;
    }

    //-------------------------------------------------------------------------
    // ctor
    //-------------------------------------------------------------------------

    constructor(
        uint16[4] memory pmax,
        uint16[4] memory max)
        ERC721(__name, __symbol)
    {
        // 0 - mr. sparklechu
        // 1 - mr. sparklechu - variant
        // 2 - homerbob
        // 3 - homerbob - variant
        tokenPrice[0] = 1 ether;
        tokenPrice[1] = 2 ether;
        tokenPrice[2] = 1 ether;
        tokenPrice[3] = 2 ether;

        // setup state with token mint limits
        _state.initialize(pmax, max);
    }

    //-------------------------------------------------------------------------
    // accessors
    //-------------------------------------------------------------------------

    /**
     * Get variant price.
     */
    function price(uint256 variantId)
        public view returns (uint256)
    {
        return tokenPrice[variantId];
    }

    //-------------------------------------------------------------------------

    /**
     * Get total minted.
     */
    function totalSupply()
        public view returns (uint256)
    {
        return _state.totalSupply();
    }

    //-------------------------------------------------------------------------

    /**
     * Get total minted of variant.
     */
    function variantSupply(uint256 variantId)
        public view returns (uint256)
    {
        return _state.getSupply(variantId);
    }

    //-------------------------------------------------------------------------

    /**
     * Get max supply allowed for variant.
     */
    function variantMax(uint256 variantId)
        public view returns (uint256)
    {
        return _state.getMax(variantId);
    }

    //-------------------------------------------------------------------------

    /**
     * Check if public minting is live.
     */
    function publicLive()
        public view returns (bool)
    {
        return _state.publicLive();
    }

    //-------------------------------------------------------------------------

    /**
     * Check if contract locked.
     */
    function locked()
        public view returns (bool)
    {
        return _state.locked();
    }

    //-------------------------------------------------------------------------

    /**
     * Enable public live.
     */
    function enablePublicLive()
        public onlyOwner
    {
        _state.enablePublicLive();
    }

    //-------------------------------------------------------------------------

    /**
     * Toggle locking contract..
     */
    function toggleLocked()
        public onlyOwner
    {
        _state.toggleLocked();
    }

    //-------------------------------------------------------------------------
    // admin
    //-------------------------------------------------------------------------

    /**
     * Authorize artist address.
     */
    function registerBurnerAddress(address burner)
        public onlyOwner
    {
        require(!_burnerAddress[burner], "address already registered");
        _burnerAddress[burner] = true;
    }

    //-------------------------------------------------------------------------

    /**
     * Remove burner address.
     */
    function revokeBurnerAddress(address burner)
        public onlyOwner
    {
        require(_burnerAddress[burner], "address not registered");
        delete _burnerAddress[burner];
    }

    //-------------------------------------------------------------------------
    // security
    //-------------------------------------------------------------------------

    /**
     * Validate hash contains input data.
     */
    function validateHash(
            bytes32 msgHash,
            address sender,
            uint256 allocation,
            uint256 count)
        private pure returns(bool)
    {
        return ECDSA.toEthSignedMessageHash(
            keccak256(abi.encodePacked(sender, allocation, count))) == msgHash;
    }

    //-------------------------------------------------------------------------

    /**
     * Validate message was signed by signer.
     */
    function validateSigner(bytes32 msgHash, bytes memory signature)
        private pure returns(bool)
    {
        return msgHash.recover(signature) == _signer;
    }

    //-------------------------------------------------------------------------
    // minting
    //-------------------------------------------------------------------------

    /**
     * Mint token using securely signed message.
     */
    function secureMint(
            uint256 variantId,
            bytes32 msgHash,
            bytes calldata signature,
            uint256 allocation,
            uint256 count)
        payable external notLocked
    {
        require(variantId < tokenPrice.length, "invalid variant");
        require(tokenPrice[variantId] * count == msg.value, "insufficient funds");
        require(_minted[msg.sender] + count <= allocation, "exceed allocation");
        require(validateSigner(msgHash, signature), "invalid signer");
        require(validateHash(msgHash, msg.sender, allocation, count), "invalid hash");

        // mark user minted
        _minted[msg.sender] += uint8(count);

        // get current token id
        uint256 tokenId = _tokenOffset * (variantId + 1)
            + _state._supply[variantId];

        // update variant supply
        _state.addSupply(variantId, count);

        // mint token
        for (uint256 i = 0; i < count; ++i) {
            _safeMint(msg.sender, tokenId + i);
        }
    }

    //-------------------------------------------------------------------------

    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     */
    function burn(uint256 tokenId)
        public isBurner
    {
        _burn(tokenId);
    }

    //-------------------------------------------------------------------------
    // money
    //-------------------------------------------------------------------------

    /**
     * Pull money out of this contract.
     */
    function withdraw(address to, uint256 amount)
        public onlyOwner
    {
        require(amount > 0, "amount empty");
        require(amount <= address(this).balance, "amount exceeds balance");
        require(to != address(0), "address null");
        payable(to).transfer(amount);
    }

}

File 14 of 14 : State.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

//------------------------------------------------------------------------------
// geneticchain.io - NextGen Generative NFT Platform
//------------------------------------------------------------------------------
//    _______                   __   __        ______ __          __
//   |     __|-----.-----.-----|  |_|__|----. |      |  |--.---.-|__|-----.
//   |    |  |  -__|     |  -__|   _|  |  __| |   ---|     |  _  |  |     |
//   |_______|_____|__|__|_____|____|__|____| |______|__|__|___._|__|__|__|
//
//------------------------------------------------------------------------------
// Genetic Chain: library/State
//------------------------------------------------------------------------------
// Author: papaver (@tronicdreams)
//------------------------------------------------------------------------------

/**
 * @dev Handle contract state efficiently as possbile.
 */
library State {

    //-------------------------------------------------------------------------
    // struct
    //-------------------------------------------------------------------------

    struct Data {
        uint8     _live;
        uint8     _locked;
        uint16[4] _supply;
        uint16[4] _privatemax;
        uint16[4] _max;
        uint48    _unused;
    }

    //-------------------------------------------------------------------------
    // interface
    //-------------------------------------------------------------------------

    function initialize(Data storage data, uint16[4] memory pmax, uint16[4] memory max)
        internal
    {
        data._privatemax[0] = pmax[0];
        data._privatemax[1] = pmax[1];
        data._privatemax[2] = pmax[2];
        data._privatemax[3] = pmax[3];
        data._max[0]        = max[0];
        data._max[1]        = max[1];
        data._max[2]        = max[2];
        data._max[3]        = max[3];
    }

    //-------------------------------------------------------------------------

    function publicLive(Data storage data)
        public view returns (bool)
    {
        return data._live == 1;
    }

    //-------------------------------------------------------------------------

    function locked(Data storage data)
        public view returns (bool)
    {
        return data._locked == 1;
    }

    //-------------------------------------------------------------------------

    function enablePublicLive(Data storage data)
        public
    {
        data._live = 1;
    }

    //-------------------------------------------------------------------------

    function toggleLocked(Data storage data)
        public
    {
        data._locked = data._locked == 1 ? 0 : 1;
    }

    //-------------------------------------------------------------------------

    function getMax(Data storage data, uint256 index)
        internal
        view
        returns (uint256)
    {
        return data._live == 0 ? data._privatemax[index] : data._max[index];
    }

    //-------------------------------------------------------------------------

    function getSupply(Data storage data, uint256 index)
        internal
        view
        returns (uint256)
    {
        return data._supply[index];
    }

    //-------------------------------------------------------------------------

    function addSupply(Data storage data, uint256 index, uint256 count)
        internal
     {
        require(data._supply[index] + count <= getMax(data, index), "exceed supply");
        unchecked {
            data._supply[index] += uint16(count);
        }
    }

    //-------------------------------------------------------------------------

    function totalSupply(Data storage data)
        internal
        view
        returns (uint256 supply)
    {
        for (uint256 i = 0; i < data._supply.length; ++i) {
            supply += uint16(data._supply[i]);
        }
    }

}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 150
  },
  "evmVersion": "london",
  "libraries": {
    "/contracts/libraries/State.sol": {
      "State": "0xbDdbbF1c358A29634368B5237c3975E9708dcf18"
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

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ype":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"variantId","type":"uint256"},{"internalType":"bytes32","name":"msgHash","type":"bytes32"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"uint256","name":"allocation","type":"uint256"},{"internalType":"uint256","name":"count","type":"uint256"}],"name":"secureMint","outputs":[],"stateMutability":"payable","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":"baseUri","type":"string"}],"name":"setBaseTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"contractUri","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"hash","type":"string"}],"name":"setTokenIpfsHash","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":[],"name":"toggleLocked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenPrice","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"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":"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"},{"inputs":[{"internalType":"uint256","name":"variantId","type":"uint256"}],"name":"variantMax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"variantId","type":"uint256"}],"name":"variantSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000000000000000000000000000000000000000016000000000000000000000000000000000000000000000000000000000000001c000000000000000000000000000000000000000000000000000000000000002200000000000000000000000000000000000000000000000000000000000000025000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000025000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000032000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000032000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000002168747470733a2f2f697066732e67656e65746963636861696e2e696f2f6970667300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002e516d5a437a66386d527153726a776941353659744675356647473844667a41616b63563267466132556b46746f4b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005068747470733a2f2f697066732e67656e65746963636861696e2e696f2f697066732f516d5551455658485a375a5345744872626a48314e6767756d7552464a5a4b5267335874716741366e734d61323800000000000000000000000000000000

-----Decoded View---------------
Arg [0] : baseUri_ (string): https://ipfs.geneticchain.io/ipfs
Arg [1] : ipfsHash_ (string): QmZCzf8mRqSrjwiA56YtFu5fGG8DfzAakcV2gFa2UkFtoK
Arg [2] : contractUri_ (string): https://ipfs.geneticchain.io/ipfs/QmUQEVXHZ7ZSEtHrbjH1NggumuRFJZKRg3XtqgA6nsMa28
Arg [3] : pmax (uint16[4]): 37,10,37,10
Arg [4] : max (uint16[4]): 50,12,50,12

-----Encoded View---------------
21 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000160
Arg [1] : 00000000000000000000000000000000000000000000000000000000000001c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000220
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000025
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000025
Arg [6] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [8] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [10] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000021
Arg [12] : 68747470733a2f2f697066732e67656e65746963636861696e2e696f2f697066
Arg [13] : 7300000000000000000000000000000000000000000000000000000000000000
Arg [14] : 000000000000000000000000000000000000000000000000000000000000002e
Arg [15] : 516d5a437a66386d527153726a776941353659744675356647473844667a4161
Arg [16] : 6b63563267466132556b46746f4b000000000000000000000000000000000000
Arg [17] : 0000000000000000000000000000000000000000000000000000000000000050
Arg [18] : 68747470733a2f2f697066732e67656e65746963636861696e2e696f2f697066
Arg [19] : 732f516d5551455658485a375a5345744872626a48314e6767756d7552464a5a
Arg [20] : 4b5267335874716741366e734d61323800000000000000000000000000000000


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.