Contract 0x7e3Ef31186D1BEc0D3f35aD701D065743B84C790 1

Token Contract 
 

Contract Overview

Antonym: ANTONYM Token
Balance:
0 Ether

EtherValue:
$0.00

Token:
 
Txn Hash
Method
Block
From
To
Value
0x50f6271123f585935bd1cb1bb3024de14c55aafc8977ba8848cf57765a67bdf2Safe Transfer Fr...160633562022-11-27 19:17:3545 mins ago0xd1ef4f4de55def550179b6f79f162fd75693af17 IN  Antonym: ANTONYM Token0 Ether0.00062481 11.99980387
0x3e3c5ee8b10a8534a2e7828941bcd1dbb43a91870e1af468e61b68fb08a7e598Set Approval For...160633412022-11-27 19:14:2348 mins ago0x98ffdb35589cebb0fc6375f963f9cb64dfd61830 IN  Antonym: ANTONYM Token0 Ether0.00052844 11.45428815
0xe163d59845dfdfc1047ff25bba788ce7d14182de540b7a8fe63b571a305e81b9Set Approval For...160622712022-11-27 15:38:474 hrs 24 mins agoENS Name camero.eth IN  Antonym: ANTONYM Token0 Ether0.00028356 11.66579101
0x27c36e165f72a5893242b64414db9f7ab45e6e7163f48ffe2ed8d4d1c73123f8Set Approval For...160614912022-11-27 13:01:477 hrs 1 min agoENS Name merkyyy.eth IN  Antonym: ANTONYM Token0 Ether0.00062462 13.53899526
0x166ab9b773621daffddd653340cbfb97d7d45725e42f51b401a31b28d9541821Safe Transfer Fr...160609212022-11-27 11:07:358 hrs 55 mins ago0x13095b43080190d20421f46b537bb4c15b31fa21 IN  Antonym: ANTONYM Token0 Ether0.00056405 10.83292257
0x356e9cd391beee8514094a5cbb8fe3f29791eb71fca0567eea3d1c01c54a8890Set Approval For...160597912022-11-27 7:20:3512 hrs 42 mins ago0x2b87fd363ba194ee0bdf1b1f81c14ee71bc7eef7 IN  Antonym: ANTONYM Token0 Ether0.00052322 11.33537395
0xf015cc4ea739d5d6c552f50b654754ae668dfc6396437d41b0e819d8ed6f7d5bSet Approval For...160583692022-11-27 2:35:4717 hrs 27 mins ago0x04dc1e988ff93bafa22599122bf6678576c631d1 IN  Antonym: ANTONYM Token0 Ether0.00049085 10.63949521
0x1aa06c07222045a84e44478eada89c04c533d831111a6e5f43a3e4a2398af749Transfer From160573172022-11-26 23:03:5920 hrs 59 mins ago0x68f3b8f48cad402dda2e7d3fa7697984e2dca741 IN  Antonym: ANTONYM Token0 Ether0.000420119.45
0x04be16d9d3c30b56a2d86338ccda84e5f9f61ef5cadd8532a5829405d2cc75deTransfer From160573152022-11-26 23:03:3520 hrs 59 mins ago0x68f3b8f48cad402dda2e7d3fa7697984e2dca741 IN  Antonym: ANTONYM Token0 Ether0.0006967410.5
0x8df9658b1741421778e21bcfd2e52102c838a59679338f5dfca1be6e50d0085bSet Approval For...160572872022-11-26 22:57:5921 hrs 5 mins ago0x68f3b8f48cad402dda2e7d3fa7697984e2dca741 IN  Antonym: ANTONYM Token0 Ether0.0004678 10.13995796
0x46ac26742044b448c174b6285235552bcfcc5d155fc0499f3b2cf92413349577Set Approval For...160553842022-11-26 16:34:471 day 3 hrs ago0xb63c96e4b688b6839088d35b37e7580d75a3b84d IN  Antonym: ANTONYM Token0 Ether0.00026363 10.88384611
0x7de05efa54c9c45f41d9177b20f1f3ad62b8b2686d34604bf2acbb5e384ebe8eSet Approval For...160553822022-11-26 16:34:231 day 3 hrs ago0xb63c96e4b688b6839088d35b37e7580d75a3b84d IN  Antonym: ANTONYM Token0 Ether0.00024605 10.12268778
0x9afe9b2fdc5e8a8ac7c16efc40b49b070d09d9772de2748906b1f1bea3bfcaffSet Approval For...160552502022-11-26 16:07:351 day 3 hrs ago0x495111562f0ec7438f9cb94c5556e19538d3be3b IN  Antonym: ANTONYM Token0 Ether0.00030244 12.44272633
0xfe0d754b1d25aedccc9396048319d292db97288bc240025da9f572521e8492ecSafe Transfer Fr...160544652022-11-26 13:29:351 day 6 hrs ago0xd1ef4f4de55def550179b6f79f162fd75693af17 IN  Antonym: ANTONYM Token0 Ether0.00058872 11.30670446
0x2c40b9afb6aa251063f13f4501780aa7db5ab8e044bed3b0d29e64336c84ae3dSet Approval For...160531452022-11-26 9:03:591 day 10 hrs agoENS Name menik.eth IN  Antonym: ANTONYM Token0 Ether0.00026862 11.0896922
0xfdeb1896bb9692e03738ade19e8919c090cbd8f2153c27e701c0604a6c882587Set Approval For...160527942022-11-26 7:53:111 day 12 hrs ago0x4e50b512559b7a54b2980c6897574236f82ddde2 IN  Antonym: ANTONYM Token0 Ether0.00046138 10.00068323
0x019711bf7ba1519490d367342c567c26c96ad059f0ce0f80076248167e7d2276Set Approval For...160511052022-11-26 2:13:591 day 17 hrs ago0x97b9dcf41e87e957956b340921839de46dac4f4e IN  Antonym: ANTONYM Token0 Ether0.0004969 10.7705941
0xaa3c28c926235c479b000bf660d7e1a6dcc6008df7c1f2759bba15142b5582f2Set Approval For...160486622022-11-25 18:03:352 days 1 hr ago0x29875e06ca0330ea7ea50ef54001eac9b7805a77 IN  Antonym: ANTONYM Token0 Ether0.00048702 10.55113033
0xe899fed5120cae0be859c365357bfc54e65e963268db7aff885bb4e1a470d053Set Approval For...160468312022-11-25 11:54:112 days 8 hrs agoENS Name dipdip.eth IN  Antonym: ANTONYM Token0 Ether0.00028893 11.88686818
0x4fd9522f402d169f497917dafc3b8a929e7f3babc0cb4303368896b92601aebdSafe Transfer Fr...160451242022-11-25 6:10:472 days 13 hrs ago0x418415794d6e4db4b527194e898ede2dbe37f1bd IN  Antonym: ANTONYM Token0 Ether0.00062639 12.03018643
0xd1be1d88deb76f81364c35bff11d9a3248964d2f788924b94b5dd0f6380a9686Set Approval For...160449402022-11-25 5:33:352 days 14 hrs agoENS Name edbnftz.eth IN  Antonym: ANTONYM Token0 Ether0.000508 11.00556966
0x1c3c72c8c43ccc8c4db450beef91f6adfa7ba449568ddbb739009444529d1067Safe Transfer Fr...160428742022-11-24 22:38:112 days 21 hrs ago0x00ffb2153e8f2475328898fdf9df0ee9d3cd92f4 IN  Antonym: ANTONYM Token0 Ether0.00080839 12.56106111
0x9bbeb604f872cd50441413c7c582c81bc873b234afd43934dba8802527107455Set Approval For...160368682022-11-24 2:30:593 days 17 hrs ago0x9bad35fcb8d46029a7a6b0cf8eed35e350a56d74 IN  Antonym: ANTONYM Token0 Ether0.00059347 12.86380152
0x7ade90984047a152aac1d0c3d978642c81e9255a90db325ec142ef91c8fa1b07Set Approval For...160364302022-11-24 1:03:113 days 19 hrs ago0xa704c225e41197587d0a12700ac308adcc41f1ed IN  Antonym: ANTONYM Token0 Ether0.00056651 12.27941138
0xa5ea8d11606a7ea4837433cc4dc15ae94c43f1db8d5b0a6fcfc851c6df3972d1Set Approval For...160360502022-11-23 23:46:353 days 20 hrs ago0x709ab301978e2cc74d35d15c7c33107a37047bfa IN  Antonym: ANTONYM Token0 Ether0.00064566 13.99521892
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OVERVIEW

Antonym is a phygital lifestyle brand bridging the gap between digital collectibles and physical designer goods. Antonym: Genesis is a Phygital collection of 8,888 NFTs. Each holder is eligible to redeem a limited-edition, designer art toy.

Latest 24 internal transactions
Parent Txn Hash Block From To Value
0xf365d3a71bc171db1f0772a4e95c1af8d20ad8691539fddd659eb23d560044e0143193412022-03-04 8:24:37268 days 11 hrs ago Antonym: ANTONYM Token 0xdeaacb2b41189d069731bc12af7130cddb4b8af52,198.71 Ether
0x0ec64f496a71d9463f0a2196872a117e8fc9af3b7b0b3ae6d2634ce2729293ec143111172022-03-03 1:43:45269 days 18 hrs ago Antonym: ANTONYM TokenENS Name moglee.eth0.03 Ether
0x58de635d4a5db081983deb8b771c3240afe56141b6504e8324b3ef47031ad5e0143111172022-03-03 1:43:45269 days 18 hrs ago Antonym: ANTONYM Token0x0e719677cb5679ff07858f58bfd6fe2a8234863c0.3 Ether
0xe24cf94e60616e76203b95020ebc40ab26863ded5de109cc0eccffb0e89d8ab4143111162022-03-03 1:43:38269 days 18 hrs ago Antonym: ANTONYM Token0x3acc2605110ee33a60d3175185620b73170faa0f2.4 Ether
0xc35f7089688f8dfccd2bf56509b7e0135423a83938bea54d30d4fd5f102e9e7d143111162022-03-03 1:43:38269 days 18 hrs ago Antonym: ANTONYM Token0x04a21daa17a0e742a46572f9711b71d35336ed812.4 Ether
0x4be8c2999d107b8b849c3cbab5d4101ce976c747c93bc9977a6a2d587b637bca143111162022-03-03 1:43:38269 days 18 hrs ago Antonym: ANTONYM Token0x9b22838b969bf19b6575a843d8a489cc4ae3aaa92.4 Ether
0xb984fed797052df96d80f2017d600df278f69aa506fdc5da302572c47485518f143111162022-03-03 1:43:38269 days 18 hrs ago Antonym: ANTONYM Token0xb975164eb94a7e42bbc515451f709c99f087381b2.4 Ether
0x64b5cd62055cca7b6feb53354786bab6ed154d548265136e5902852393cb8e8a143111142022-03-03 1:43:23269 days 18 hrs ago Antonym: ANTONYM Token0x728683e40ce8ef731782622e635771c1f7a1c3210.3 Ether
0x83c286b69db0dcfb3865f25656bb0625bd3f354988680ac457677d9636650800143111112022-03-03 1:42:48269 days 18 hrs ago Antonym: ANTONYM TokenENS Name welcometohell.eth0.1 Ether
0xdbe8015e43427967c4174d77db13cccf3de03f86f22e95712e0cede93e77204e143111072022-03-03 1:41:44269 days 18 hrs ago Antonym: ANTONYM TokenENS Name alexhsu.eth0.1 Ether
0x2b97494481fb772465205e4f3d079c6f9247a6d918b9139c98fd3a8c08846eab143111072022-03-03 1:41:44269 days 18 hrs ago Antonym: ANTONYM Token0x227d73ae8cbebdfc8a04a9e86c2b66b0dd611a3f0.3 Ether
0xa8198313ab2c12034c709e7ebca52f4509aea705ea1655624ae4253c1a0f8ed0143110882022-03-03 1:36:32269 days 18 hrs ago Antonym: ANTONYM Token0x84679c195239c58a2dc9068f67a74b5d334a2b870.1 Ether
0xd604687d7a303542bbd3dce1290b5763b0f4f7fb57f90d5d1c3bf0f4bea73acd143110732022-03-03 1:31:42269 days 18 hrs ago Antonym: ANTONYM Token0x5473e3c714b09dc785a52f7afef3494e189af2be0.1 Ether
0x30921b3b69ca37197ca8ef4451ce51e6e494a28dd7252003b2d25409a448d78f143110732022-03-03 1:31:42269 days 18 hrs ago Antonym: ANTONYM Token0xc66a6d9b377db1e237455b6c83bee4e64770f9110.1 Ether
0xbd409d9ac897566c08f4dbef3cca20e2cd1b5c256d5abd6f0e9cc61dde8e3fb9143110332022-03-03 1:21:40269 days 18 hrs ago Antonym: ANTONYM TokenENS Name jeremyjauncey.eth0.2 Ether
0xf32d4159e70482707877cd0bcd7ba6eb2ae5f5f7066017c203c7438f15ec6bb0143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0x45d319aa56f61d00a5c138bc0433ece02014f80a0.2 Ether
0x89ee2d502ecefa625804019ecc59828d6c61a271dc3fd3a8e6dd1b2b7e7f3aa4143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0xf53f8adcdc7555d0db2e2dcfd28a1bfc4918926b0.2 Ether
0x71bf73120130390e2bb057c5b28b36d64feab7caa9303d84d4bfd588fcc40013143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0x03f45d8e89bb4f3a8eb84fec793155138ce4c9630.2 Ether
0x66b42a7265a9d20e254e956745dddacafa1e1ef83ef62fdc980fc2d09ca4dd9f143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0xefc75499021007690828fa16967339c3ef4cf3f40.2 Ether
0x512af63cf517cf6354d781107a7c06effcaf364787f9e9eb6f06bcd54c342e11143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0x73bc3326cba9a38fec73e7180f59085a5d1619a90.2 Ether
0xd4769789ab10d7de9074eca4c973a2de873f8b5d6a4847249129e93c2d8a3ef0143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0xad4b1a796692022fc0b3d2c6a64c2ede92c1f9850.2 Ether
0x8ddd108f19160093962286a8c6ecd7aae9287980e03a1681243200462f07deea143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0xb3a9a9683564294265025f1de0d233da2bcce2800.2 Ether
0xdca51681c609c3b8b95dc2a846cb96f7d99cbeaf03b64e62b29fac797c9c6961143108092022-03-03 0:31:44269 days 19 hrs ago Antonym: ANTONYM Token0xf8d3293945aa19a24b3be8dd7623fbbd7b76b01b0.2 Ether
0x4b57d8a4055180120d125343b9689ef7f3ba95ddb971b0643e69609911b4db4c143107182022-03-03 0:12:41269 days 19 hrs ago Antonym: ANTONYM Token0x09d4070c6d1c501467f4325b601b742375b60a2d0.1 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
Antonym

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 500 runs

Other Settings:
default evmVersion
File 1 of 12 : FashionNFT.sol
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "./ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract Antonym is ERC721A, Ownable {
    using Strings for uint256;

    uint256 public constant WHITELIST_MAX = 4400;
    uint256 public constant RESERVE_MAX = 88; 
    uint256 public constant TOTAL_MAX = 8888; 
    uint256 public constant MAX_SALE_QUANTITY = 3; 
    uint256 public whitelistPrice = 0.185 ether; 
    uint256 public whitelistCount;
    uint256 public reserveCount;

    uint32 public startTime;
    bool public saleActive;
    bool public whitelistActive;
    bool private whitelistEnded;

    struct DAVariables {
        uint64 saleStartPrice;
        uint64 duration;
        uint64 interval;
        uint64 decreaseRate;
    }

    DAVariables public daVariables;

    mapping(address => uint256) public whitelists;

    string private baseURI;
    bool public revealed;

    address private paymentAddress;
    address private royaltyAddress;
    uint96 private royaltyBasisPoints = 810;
    bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a;

    constructor() ERC721A("Antonym", "ANTONYM") {}

    /**
     * @notice not locked modifier
     */
    modifier notEnded() {
        require(!whitelistEnded, "WHITELIST_ENDED");
        _;
    }

    /**
     * @notice mint from whitelist
     * @dev must occur before public sale
     */
    function mintWhitelist(uint256 _quantity) external payable notEnded {
        require(whitelistActive, "WHITELIST_INACTIVE");
        uint256 remaining = whitelists[msg.sender];
        require(whitelistCount + _quantity <= WHITELIST_MAX, "WHITELIST_MAXED");
        require(remaining != 0 && _quantity <= remaining, "UNAUTHORIZED");
        require(msg.value == whitelistPrice * _quantity, "INCORRECT_ETH");
        if (_quantity == remaining) {
            delete whitelists[msg.sender];
        } else {
            whitelists[msg.sender] = whitelists[msg.sender] - _quantity;
        }
        whitelistCount = whitelistCount + _quantity;
        _safeMint(msg.sender, _quantity);
    }

    /**
     * @notice buy from sale (dutch auction)
     * @dev must occur after whitelist sale
     */
    function buy(uint256 _quantity) external payable {
        require(saleActive, "SALE_INACTIVE");
        require(tx.origin == msg.sender, "NOT_EOA");
        require(
            _numberMinted(msg.sender) + _quantity <= MAX_SALE_QUANTITY,
            "QUANTITY_MAXED"
        );
        require(
            (totalSupply() - reserveCount) + _quantity <=
                TOTAL_MAX - RESERVE_MAX,
            "SALE_MAXED"
        );
        uint256 mintCost;
        DAVariables memory _daVariables = daVariables;
        if (block.timestamp - startTime >= _daVariables.duration) {
            mintCost = whitelistPrice * _quantity;
        } else {
            uint256 steps = (block.timestamp - startTime) /
                _daVariables.interval;
            mintCost =
                (daVariables.saleStartPrice -
                    (steps * _daVariables.decreaseRate)) *
                _quantity;
        }
        require(msg.value >= mintCost, "INSUFFICIENT_ETH");
        _mint(msg.sender, _quantity, "", true);
        if (msg.value > mintCost) {
            payable(msg.sender).transfer(msg.value - mintCost);
        }
    }

    /**
     * @notice release reserve
     */
    function releaseReserve(address _account, uint256 _quantity)
        external
        onlyOwner
    {
        require(_quantity > 0, "INVALID_QUANTITY");
        require(reserveCount + _quantity <= RESERVE_MAX, "RESERVE_MAXED");
        reserveCount = reserveCount + _quantity;
        _safeMint(_account, _quantity);
    }

    /**
     * @notice return number of tokens minted by owner
     */
    function saleMax() external view returns (uint256) {
        if (!whitelistEnded) {
            return TOTAL_MAX - RESERVE_MAX - WHITELIST_MAX;
        }
        return TOTAL_MAX - RESERVE_MAX - whitelistCount;
    }

    /**
     * @notice return number of tokens minted by owner
     */
    function numberMinted(address owner) external view returns (uint256) {
        return _numberMinted(owner);
    }

    /**
     * @notice return current sale price
     */
    function getCurrentPrice() external view returns (uint256) {
        if (!saleActive) {
            return daVariables.saleStartPrice;
        }
        DAVariables memory _daVariables = daVariables;
        if (block.timestamp - startTime >= _daVariables.duration) {
            return whitelistPrice;
        } else {
            uint256 steps = (block.timestamp - startTime) /
                _daVariables.interval;
            return
                daVariables.saleStartPrice -
                (steps * _daVariables.decreaseRate);
        }
    }

    /**
     * @notice active whitelist
     */
    function activateWhitelist() external onlyOwner {
        !whitelistActive ? whitelistActive = true : whitelistActive = false;
    }

    /**
     * @notice active sale
     */
    function activateSale() external onlyOwner {
        require(daVariables.saleStartPrice != 0, "SALE_VARIABLES_NOT_SET");
        if (!whitelistEnded) whitelistEnded = true;
        if (whitelistActive) whitelistActive = false;
        if (startTime == 0) {
            startTime = uint32(block.timestamp);
        }
        !saleActive ? saleActive = true : saleActive = false;
    }

    /**
     * @notice set sale startTime
     */
    function setSaleVariables(
        uint32 _startTime,
        uint64 _saleStartPrice,
        uint64 _duration,
        uint64 _interval,
        uint64 _decreaseRate
    ) external onlyOwner {
        require(!saleActive);
        startTime = _startTime;
        daVariables = DAVariables({
            saleStartPrice: _saleStartPrice,
            duration: _duration,
            interval: _interval,
            decreaseRate: _decreaseRate
        });
    }

    /**
     * @notice set base URI
     */
    function setBaseURI(string calldata _baseURI, bool reveal) external onlyOwner {
        if (!revealed && reveal) revealed = reveal; 
        baseURI = _baseURI;
    }

    /**
     * @notice set payment address
     */
    function setPaymentAddress(address _paymentAddress) external onlyOwner {
        paymentAddress = _paymentAddress;
    }

    /**
     * @notice set royalty address
     */
    function setRoyaltyAddress(address _royaltyAddress) external onlyOwner {
        royaltyAddress = _royaltyAddress;
    }

    /**
     * @notice set royalty rate
     */
    function setRoyalty(uint96 _royaltyBasisPoints) external onlyOwner {
        royaltyBasisPoints = _royaltyBasisPoints;
    }

    /**
     * @notice set whitelist price
     */
    function setWhitelistPrice(uint256 _newPrice) external onlyOwner {
        whitelistPrice = _newPrice;
    }

    /**
     * @notice add addresses to whitelist
     */
    function setWhitelist(address[] calldata whitelisters, bool ogStatus)
        external
        onlyOwner
    {
        uint256 quantity = ogStatus ? 2 : 1;
        for (uint256 i; i < whitelisters.length; i++) {
            whitelists[whitelisters[i]] = quantity;
        }
    }

    /**
     * @notice token URI
     */
    function tokenURI(uint256 _tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(_exists(_tokenId), "Cannot query non-existent token");
        if (revealed) {
        return string(abi.encodePacked(baseURI, _tokenId.toString()));
        } else{
            return baseURI;
        }
    }

    /**
     * @notice royalty information
     */
    function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount)
    {
        require(_exists(_tokenId), "Cannot query non-existent token");
        return (royaltyAddress, (_salePrice * royaltyBasisPoints) / 10000);
    }

    /**
     * @notice supports interface
     * @dev overridden for EIP2981 royalties
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC721A)
        returns (bool)
    {
        if (interfaceId == _INTERFACE_ID_ERC2981) {
            return true;
        }
        return super.supportsInterface(interfaceId);
    }

    /**
     * @notice transfer funds
     */
    function transferFunds() external onlyOwner {
        (bool success, ) = payable(paymentAddress).call{
            value: address(this).balance
        }("");
        require(success, "TRANSFER_FAILED");
    }
}

File 2 of 12 : ERC721A.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintedQueryForZeroAddress();
error BurnedQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerIndexOutOfBounds();
error OwnerQueryForNonexistentToken();
error TokenIndexOutOfBounds();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**128 - 1 (max value of uint128).
 */
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
    using Address for address;
    using Strings for uint256;

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
    }

    // Compiler will pack the following 
    // _currentIndex and _burnCounter into a single 256bit word.
    
    // The tokenId of the next token to be minted.
    uint128 internal _currentIndex;

    // The number of tokens burned.
    uint128 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

    // 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;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex times
        unchecked {
            return _currentIndex - _burnCounter;    
        }
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
     * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
     */
    function tokenByIndex(uint256 index) public view override returns (uint256) {
        uint256 numMintedSoFar = _currentIndex;
        uint256 tokenIdsIdx;

        // Counter overflow is impossible as the loop breaks when
        // uint256 i is equal to another uint256 numMintedSoFar.
        unchecked {
            for (uint256 i; i < numMintedSoFar; i++) {
                TokenOwnership memory ownership = _ownerships[i];
                if (!ownership.burned) {
                    if (tokenIdsIdx == index) {
                        return i;
                    }
                    tokenIdsIdx++;
                }
            }
        }
        revert TokenIndexOutOfBounds();
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     * This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
     * It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) {
        if (index >= balanceOf(owner)) revert OwnerIndexOutOfBounds();
        uint256 numMintedSoFar = _currentIndex;
        uint256 tokenIdsIdx;
        address currOwnershipAddr;

        // Counter overflow is impossible as the loop breaks when
        // uint256 i is equal to another uint256 numMintedSoFar.
        unchecked {
            for (uint256 i; i < numMintedSoFar; i++) {
                TokenOwnership memory ownership = _ownerships[i];
                if (ownership.burned) {
                    continue;
                }
                if (ownership.addr != address(0)) {
                    currOwnershipAddr = ownership.addr;
                }
                if (currOwnershipAddr == owner) {
                    if (tokenIdsIdx == index) {
                        return i;
                    }
                    tokenIdsIdx++;
                }
            }
        }

        // Execution should never reach this point.
        revert();
    }

    /**
     * @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 ||
            interfaceId == type(IERC721Enumerable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    function _numberMinted(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert MintedQueryForZeroAddress();
        return uint256(_addressData[owner].numberMinted);
    }

    function _numberBurned(address owner) internal view returns (uint256) {
        if (owner == address(0)) revert BurnedQueryForZeroAddress();
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (curr < _currentIndex) {
                TokenOwnership memory ownership = _ownerships[curr];
                if (!ownership.burned) {
                    if (ownership.addr != address(0)) {
                        return ownership;
                    }
                    // Invariant: 
                    // There will always be an ownership that has an address and is not burned 
                    // before an ownership that does not have an address and is not burned.
                    // Hence, curr will not underflow.
                    while (true) {
                        curr--;
                        ownership = _ownerships[curr];
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                    }
                }
            }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return ownershipOf(tokenId).addr;
    }

    /**
     * @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) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

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

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. 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 override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
            revert ApprovalCallerNotOwnerNorApproved();
        }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public override {
        if (operator == _msgSender()) revert ApproveToCaller();

        _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 {
        _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 {
        _transfer(from, to, tokenId);
        if (!_checkOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

    /**
     * @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`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return tokenId < _currentIndex && !_ownerships[tokenId].burned;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        _mint(to, quantity, _data, true);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(
        address to,
        uint256 quantity,
        bytes memory _data,
        bool safe
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 3.4e38 (2**128) - 1
        // updatedIndex overflows if _currentIndex + quantity > 3.4e38 (2**128) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;

            for (uint256 i; i < quantity; i++) {
                emit Transfer(address(0), to, updatedIndex);
                if (safe && !_checkOnERC721Received(address(0), to, updatedIndex, _data)) {
                    revert TransferToNonERC721ReceiverImplementer();
                }
                updatedIndex++;
            }

            _currentIndex = uint128(updatedIndex);
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * 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
    ) private {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
            isApprovedForAll(prevOwnership.addr, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**128.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            _ownerships[tokenId].addr = to;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @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 {
        TokenOwnership memory prevOwnership = ownershipOf(tokenId);

        _beforeTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**128.
        unchecked {
            _addressData[prevOwnership.addr].balance -= 1;
            _addressData[prevOwnership.addr].numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            _ownerships[tokenId].addr = prevOwnership.addr;
            _ownerships[tokenId].startTimestamp = uint64(block.timestamp);
            _ownerships[tokenId].burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            if (_ownerships[nextTokenId].addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId < _currentIndex) {
                    _ownerships[nextTokenId].addr = prevOwnership.addr;
                    _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(prevOwnership.addr, address(0), tokenId);
        _afterTokenTransfers(prevOwnership.addr, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked { 
            _burnCounter++;
        }
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        address owner
    ) private {
        _tokenApprovals[tokenId] = to;
        emit Approval(owner, 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 TransferToNonERC721ReceiverImplementer();
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * 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, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

File 3 of 12 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

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() {
        _transferOwnership(_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 {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 4 of 12 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

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 12 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

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 12 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

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 12 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

File 8 of 12 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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");

        (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");

        (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");

        (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");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 9 of 12 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

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) {
        return msg.data;
    }
}

File 10 of 12 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    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] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 11 of 12 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

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 12 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

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);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 500
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"MintedQueryForZeroAddress","type":"error"},{"inputs":[],"name":"OwnerIndexOutOfBounds","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TokenIndexOutOfBounds","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"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":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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":"MAX_SALE_QUANTITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"RESERVE_MAX","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOTAL_MAX","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WHITELIST_MAX","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"activateSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"activateWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","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":[{"internalType":"uint256","name":"_quantity","type":"uint256"}],"name":"buy","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"daVariables","outputs":[{"internalType":"uint64","name":"saleStartPrice","type":"uint64"},{"internalType":"uint64","name":"duration","type":"uint64"},{"internalType":"uint64","name":"interval","type":"uint64"},{"internalType":"uint64","name":"decreaseRate","type":"uint64"}],"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":"getCurrentPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[{"internalType":"uint256","name":"_quantity","type":"uint256"}],"name":"mintWhitelist","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"numberMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_quantity","type":"uint256"}],"name":"releaseReserve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reserveCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"revealed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","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":"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":[],"name":"saleActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"saleMax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","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"},{"internalType":"bool","name":"reveal","type":"bool"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_paymentAddress","type":"address"}],"name":"setPaymentAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint96","name":"_royaltyBasisPoints","type":"uint96"}],"name":"setRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_royaltyAddress","type":"address"}],"name":"setRoyaltyAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_startTime","type":"uint32"},{"internalType":"uint64","name":"_saleStartPrice","type":"uint64"},{"internalType":"uint64","name":"_duration","type":"uint64"},{"internalType":"uint64","name":"_interval","type":"uint64"},{"internalType":"uint64","name":"_decreaseRate","type":"uint64"}],"name":"setSaleVariables","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"whitelisters","type":"address[]"},{"internalType":"bool","name":"ogStatus","type":"bool"}],"name":"setWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newPrice","type":"uint256"}],"name":"setWhitelistPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startTime","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","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"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Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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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.