Contract 0x05df72d911e52ab122f7d9955728bc96a718782c 1

 

Contract Overview

Cyberkongz VX: KONGZ VX Token
Balance:
0 MATIC

MATIC Value:
$0.00
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xbca9f5859c61088efe9e350cfce556dab2ab27514d6bac45ac99ef6cdd8f1ebeWithdraw Batch337940572022-10-01 11:41:3626 mins ago0x6cd769409248c17e6fb9a22340db1780ff409b93 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.001894032 31.500000014
0xbfcafdac2caa8de5f0c6d2a640c16c3e9f3f1561d1d16ceda7d9e4e51201d0e5Safe Transfer Fr...337899892022-10-01 9:21:362 hrs 46 mins ago0x66e750a700391fce4492daaf78d983f8c955b48e IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002931450001 30.000000013
0xea8d1554dfb3552d7d4f1894c27910e5892ca24c069870e194f37eda93656886Safe Transfer Fr...337763022022-10-01 1:28:2610 hrs 39 mins ago0xe6bd925cd0f29eb5a336b0d5c94f007d817041de IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003616442304 32.199103454
0x9761dd13a6e8532a8643edfbcc9ffdbf25b313cc116fa0758d8e2f5332691627Withdraw Batch337724922022-09-30 23:17:2512 hrs 50 mins ago0xbdf1cdd4102d69735f2a1c50971a06f828a46294 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002544764854 31.950141297
0x99d2bd20b6418eff74ce1b6865b956ccb4f501b8e14e07a214c929bcf060a062Withdraw Batch337724702022-09-30 23:16:3712 hrs 51 mins ago0xbdf1cdd4102d69735f2a1c50971a06f828a46294 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002585385722 32.460146172
0x7ced7452f2de2577fc9ad648d7bf32f14339b63d8a5c47c2c85211c585c463acWithdraw Batch337724382022-09-30 23:15:3312 hrs 52 mins ago0xbdf1cdd4102d69735f2a1c50971a06f828a46294 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002665346105 33.46406822
0xcddc7723350cda0b0cb51821eaa0cee4f288b59a51b701faac7318920e894ccdSafe Transfer Fr...337719992022-09-30 22:59:2313 hrs 8 mins ago0x029f205c7ac1f14803ec5eba682fed1190fb2b65 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.004414226446 39.298000003
0x70fa1fa934190faf5b935e599856d93ef45b208395b01c4aff4905f3027ed20dSafe Transfer Fr...337708812022-09-30 22:19:5513 hrs 48 mins ago0xf164a14482cdee2f9b04bfa1ddd1a0f992c8c267 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003630656909 35.411715056
0x561a397f3a459d014ab95de8f66d74dabc5863466a2d8e32b78ed590bebda678Safe Transfer Fr...337708012022-09-30 22:17:0713 hrs 50 mins ago0xf164a14482cdee2f9b04bfa1ddd1a0f992c8c267 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.004079131532 31.516851446
0x793f68faaa890bf917e7aa147c9d8b78526c04208e47c5d207c47c2562c442daSafe Transfer Fr...337700252022-09-30 21:50:2714 hrs 17 mins ago0x63fae658e171f8e017e70a1a83c5fab287fc1037 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003100978173 31.731028001
0xbc3774d8cca0ea3bf51b36a9c426c023cf83c35b8270da76864c4847ebe6b2cfSafe Transfer Fr...337700072022-09-30 21:49:5114 hrs 18 mins ago0x63fae658e171f8e017e70a1a83c5fab287fc1037 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003369810001 30.000000011
0x77c6cda0bb53dfe678748f246bb2ef8c0a27daf23d6c82207b55085ad6f7c7c5Withdraw Batch337687412022-09-30 21:04:1015 hrs 3 mins ago0x3e98b5cfcc73b91a411e59f84caa30763faa1a02 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002508912001 31.500000013
0xe0881a9542d7529a8b8f26bb1c89d05a27a82b7d6de12bcdd47506be4d9d6a7bWithdraw Batch337675332022-09-30 20:22:3815 hrs 45 mins ago0xf464d1a37d8ef9449722f44a4eeb715c0e0acdb3 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002508912001 31.500000015
0xf29cf4b045e16f6bb388fbd1179e1e1a863a8585a679bb78aaadc9f08aa6de03Set Approval For...337662372022-09-30 19:35:5816 hrs 31 mins ago0x433c8a73bec1273561e4e2201649de12f20b7d58 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.0015703233 33.950000013
0x22434c296de1cb2626ef18e387be1b67b7e2991022971159c6d3d212c9ebe2eaTransfer From337657532022-09-30 19:19:1816 hrs 48 mins ago0x6af3d8a53d915defc08ba77d0dfc5629ce368fc7 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003222281602 33.957000012
0x1d4aa2783261c10de64c2358ecbfb35dbbf3452cd5c728d1f6174ce3f37fd9b7Withdraw Batch337597662022-09-30 15:48:3320 hrs 19 mins ago0xcfe8b34552ce7328552ecc5ebd4b2081c0c890d5 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002357909653 32.836308675
0xeb0a2c36223ef209086544a5a24ab3ff44923ef8ba2700aa70d9e03db356c403Withdraw Batch337597542022-09-30 15:48:0920 hrs 19 mins ago0xcfe8b34552ce7328552ecc5ebd4b2081c0c890d5 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002357909653 32.836308675
0x772b804d0602a9eb1dbf6a22320e78a6da5f66a23f6856d9e2fd67d6b437186aSafe Transfer Fr...337588002022-09-30 15:15:2120 hrs 52 mins ago0x2df6f290b743be582558bf356d2063fc7da6237e IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003432146805 33.475541128
0x8a454fabfc8af232b86ea5fadfe57e04540a08471b17002ea11125d94f968c19Safe Transfer Fr...337587632022-09-30 15:14:0320 hrs 53 mins ago0x2df6f290b743be582558bf356d2063fc7da6237e IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.004554577126 38.073153441
0x25424ab6e9b880bccb6fae0755e0ba8f8a7705333076e112a5096ff27e2eb08cSet Approval For...337529612022-09-30 11:50:101 day 17 mins ago0xce68577e039892bcc1a7bc8302a0246dc9bbe1b3 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.001387620001 30.000000024
0xbba3c29b12b7c08c033500c09b039a144b4bb52da916933d63177e3085bdb106Transfer From337513322022-09-30 10:51:551 day 1 hr ago0x24440f9bc8aa1c69da3a5855d33741800578001a IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002988751501 31.50000002
0xfa8c9d630eca3c298f52d9f093c84c468fa2716d7ec31d26cdb3b2163f885635Transfer From337511042022-09-30 10:44:071 day 1 hr ago0xd79c49696904ba297f71cfcb61026e4863a9eac0 IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003987301503 31.500000025
0xdcb109d05173a759935359f5af01f355bfe67f3f21a845d3f598f39e438699c2Transfer From337503992022-09-30 10:19:491 day 1 hr ago0x24440f9bc8aa1c69da3a5855d33741800578001a IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.002988751501 31.500000016
0xcca972c19ee2259e797b9b25984245fe8a80faff8c63f6dd10c4c4b6f17e0420Transfer From337502932022-09-30 10:16:131 day 1 hr ago0x24440f9bc8aa1c69da3a5855d33741800578001a IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003139951501 31.500000018
0xc77940f28584a6150ac3f9f0a5335acf93a1b03b4fdbd025d898516c6b16dcbdTransfer From337501462022-09-30 10:11:111 day 1 hr ago0x24440f9bc8aa1c69da3a5855d33741800578001a IN  Cyberkongz VX: KONGZ VX Token0 MATIC0.003139951502 31.500000022
[ Download CSV Export 

OVERVIEW

CyberKongz VX are unique and randomly generated 3D NFT Social Avatars for the Metaverse and upcoming interoperability with The Sandbox. Some appear normal. Some look weird. Some are just damn cool! Maybe some even look familiar!

Parent Txn Hash Block From To Value
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
KongzVXPoly

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 17 : VxPolygon.sol
pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;

/*
 *     ,_,
 *    (',')
 *    {/"\}
 *    -"-"-
 */

import "ERC721.sol";
import "IERC20.sol";
import "Ownable.sol";
import "LockRegistry.sol";

contract KongzVXPoly is ERC721("Cyberkongz VX", "KONGZ VX"), LockRegistry {

	uint256 public constant BATCH_LIMIT = 20;
    address public constant MINT_ADDRESS = 0xA6FA4fB5f76172d178d61B04b0ecd319C5d1C0aa;

	event WithdrawnBatch(address indexed user, uint256[] tokenIds);

	constructor() public {
		_setBaseURI("http://kongz.herokuapp.com/api/metadata-vx");
	}

	modifier onlyMinter() {
		require(msg.sender == MINT_ADDRESS, "!minter");
		_;
	}

	function updateURI(string memory newURI) public onlyOwner {
		_setBaseURI(newURI);
	}

	/**
     * @notice called when token is deposited on root chain
     * @dev Should be callable only by ChildChainManager
     * Should handle deposit by minting the required tokenId for user
     * Make sure minting is done only by this function
     * @param user user address for whom deposit is being done
     * @param depositData abi encoded tokenId
     */
    function deposit(address user, bytes calldata depositData) external onlyMinter {
        // deposit single
        if (depositData.length == 32) {
            uint256 tokenId = abi.decode(depositData, (uint256));
            _mint(user, tokenId);

        // deposit batch
        } else {
            uint256[] memory tokenIds = abi.decode(depositData, (uint256[]));
            uint256 length = tokenIds.length;
            for (uint256 i; i < length; i++) {
                _mint(user, tokenIds[i]);
            }
        }
    }

	/**
     * @notice called when user wants to withdraw token back to root chain
     * @dev Should burn user's token. This transaction will be verified when exiting on root chain
     * @param tokenId tokenId to withdraw
     */
    function withdraw(uint256 tokenId) external {
        require(msg.sender == ownerOf(tokenId), "ChildERC721: INVALID_TOKEN_OWNER");
        require(isUnlocked(tokenId), "Token is locked");
        _burn(tokenId);
    }

    /**
     * @notice called when user wants to withdraw multiple tokens back to root chain
     * @dev Should burn user's tokens. This transaction will be verified when exiting on root chain
     * @param tokenIds tokenId list to withdraw
     */
    function withdrawBatch(uint256[] calldata tokenIds) external {
        uint256 length = tokenIds.length;
        require(length <= BATCH_LIMIT, "ChildERC721: EXCEEDS_BATCH_LIMIT");
        for (uint256 i; i < length; i++) {
            uint256 tokenId = tokenIds[i];
            require(isUnlocked(tokenId), "Token is locked");
            require(msg.sender == ownerOf(tokenId), string(abi.encodePacked("ChildERC721: INVALID_TOKEN_OWNER ", tokenId)));
            _burn(tokenId);
        }
        emit WithdrawnBatch(msg.sender, tokenIds);
    }

    function transferFrom(address from, address to, uint256 tokenId) public override {
        require(isUnlocked(tokenId), "Token is locked");
		ERC721.transferFrom(from, to, tokenId);
	}

	function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public override {
        require(isUnlocked(tokenId), "Token is locked");
		ERC721.safeTransferFrom(from, to, tokenId, _data);
	}

    function lockId(uint256 _id) external  {
        require(_exists(_id), "ERC721: token !exist");
        _lockId(_id);
	}

	function unlockId(uint256 _id) external  {
        require(_exists(_id), "ERC721: token !exist");
        _unlockId(_id);
	}

	function freeId(uint256 _id, address _contract) external  {
        require(_exists(_id), "ERC721: token !exist");
        _freeId(_id, _contract);
	}
}

File 2 of 17 : ERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "Context.sol";
import "IERC721.sol";
import "IERC721Metadata.sol";
import "IERC721Enumerable.sol";
import "IERC721Receiver.sol";
import "ERC165.sol";
import "SafeMath.sol";
import "Address.sol";
import "EnumerableSet.sol";
import "EnumerableMap.sol";
import "Strings.sol";

/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
    using SafeMath for uint256;
    using Address for address;
    using EnumerableSet for EnumerableSet.UintSet;
    using EnumerableMap for EnumerableMap.UintToAddressMap;
    using Strings for uint256;

    // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
    // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
    bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

    // Mapping from holder address to their (enumerable) set of owned tokens
    mapping (address => EnumerableSet.UintSet) private _holderTokens;

    // Enumerable mapping from token ids to their owners
    EnumerableMap.UintToAddressMap private _tokenOwners;

    // 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;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Optional mapping for token URIs
    mapping (uint256 => string) private _tokenURIs;

    // Base URI
    string private _baseURI;

    /*
     *     bytes4(keccak256('balanceOf(address)')) == 0x70a08231
     *     bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e
     *     bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3
     *     bytes4(keccak256('getApproved(uint256)')) == 0x081812fc
     *     bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465
     *     bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5
     *     bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde
     *
     *     => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^
     *        0xa22cb465 ^ 0xe985e9c5 ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd
     */
    bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;

    /*
     *     bytes4(keccak256('name()')) == 0x06fdde03
     *     bytes4(keccak256('symbol()')) == 0x95d89b41
     *     bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd
     *
     *     => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f
     */
    bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;

    /*
     *     bytes4(keccak256('totalSupply()')) == 0x18160ddd
     *     bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59
     *     bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7
     *
     *     => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63
     */
    bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;

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

        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721);
        _registerInterface(_INTERFACE_ID_ERC721_METADATA);
        _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
    }

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

        return _holderTokens[owner].length();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token");
    }

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

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

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

        string memory _tokenURI = _tokenURIs[tokenId];

        // If there is no base URI, return the token URI.
        if (bytes(_baseURI).length == 0) {
            return _tokenURI;
        }
        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
        if (bytes(_tokenURI).length > 0) {
            return string(abi.encodePacked(_baseURI, _tokenURI));
        }
        // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI.
        return string(abi.encodePacked(_baseURI, tokenId.toString()));
    }

    /**
    * @dev Returns the base URI set via {_setBaseURI}. This will be
    * automatically added as a prefix in {tokenURI} to each token's URI, or
    * to the token ID if no specific URI is set for that token ID.
    */
    function baseURI() public view returns (string memory) {
        return _baseURI;
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) {
        return _holderTokens[owner].at(index);
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view override returns (uint256) {
        // _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds
        return _tokenOwners.length();
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view override returns (uint256) {
        (uint256 tokenId, ) = _tokenOwners.at(index);
        return tokenId;
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = 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 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 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 returns (bool) {
        return _tokenOwners.contains(tokenId);
    }

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

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     d*
     * - `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);

        _holderTokens[to].add(tokenId);

        _tokenOwners.set(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 = ownerOf(tokenId);

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

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

        // Clear metadata (if any)
        if (bytes(_tokenURIs[tokenId]).length != 0) {
            delete _tokenURIs[tokenId];
        }

        _holderTokens[owner].remove(tokenId);

        _tokenOwners.remove(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(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);

        _holderTokens[from].remove(tokenId);
        _holderTokens[to].add(tokenId);

        _tokenOwners.set(tokenId, to);

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
        require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }

    /**
     * @dev Internal function to set the base URI for all token IDs. It is
     * automatically added as a prefix to the value returned in {tokenURI},
     * or to the token ID if {tokenURI} is empty.
     */
    function _setBaseURI(string memory baseURI_) internal virtual {
        _baseURI = baseURI_;
    }

    /**
     * @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()) {
            return true;
        }
        bytes memory returndata = to.functionCall(abi.encodeWithSelector(
            IERC721Receiver(to).onERC721Received.selector,
            _msgSender(),
            from,
            tokenId,
            _data
        ), "ERC721: transfer to non ERC721Receiver implementer");
        bytes4 retval = abi.decode(returndata, (bytes4));
        return (retval == _ERC721_RECEIVED);
    }

    function _approve(address to, uint256 tokenId) private {
        _tokenApprovals[tokenId] = to;
        emit Approval(ownerOf(tokenId), to, tokenId);
    }

    /**
     * @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 3 of 17 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/*
 * @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 GSN 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 4 of 17 : IERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

import "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 17 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @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 6 of 17 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

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 17 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

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 tokenId);

    /**
     * @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 17 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @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 9 of 17 : ERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts may inherit from this and call {_registerInterface} to declare
 * their support of an interface.
 */
contract ERC165 is IERC165 {
    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

    constructor () internal {
        // Derived contracts need only register support for their own interfaces,
        // we register support for ERC165 itself here
        _registerInterface(_INTERFACE_ID_ERC165);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     *
     * Time complexity O(1), guaranteed to always use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) public view override returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See {IERC165-supportsInterface}.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal virtual {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

File 10 of 17 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

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

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

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

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

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

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 11 of 17 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @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 in 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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        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 12 of 17 : EnumerableSet.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) { // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint256(_at(set._inner, index)));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

File 13 of 17 : EnumerableMap.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Library for managing an enumerable variant of Solidity's
 * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
 * type.
 *
 * Maps have the following properties:
 *
 * - Entries are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Entries are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableMap for EnumerableMap.UintToAddressMap;
 *
 *     // Declare a set state variable
 *     EnumerableMap.UintToAddressMap private myMap;
 * }
 * ```
 *
 * As of v3.0.0, only maps of type `uint256 -> address` (`UintToAddressMap`) are
 * supported.
 */
library EnumerableMap {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Map type with
    // bytes32 keys and values.
    // The Map implementation uses private functions, and user-facing
    // implementations (such as Uint256ToAddressMap) are just wrappers around
    // the underlying Map.
    // This means that we can only create new EnumerableMaps for types that fit
    // in bytes32.

    struct MapEntry {
        bytes32 _key;
        bytes32 _value;
    }

    struct Map {
        // Storage of map keys and values
        MapEntry[] _entries;

        // Position of the entry defined by a key in the `entries` array, plus 1
        // because index 0 means a key is not in the map.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) {
        // We read and store the key's index to prevent multiple reads from the same storage slot
        uint256 keyIndex = map._indexes[key];

        if (keyIndex == 0) { // Equivalent to !contains(map, key)
            map._entries.push(MapEntry({ _key: key, _value: value }));
            // The entry is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            map._indexes[key] = map._entries.length;
            return true;
        } else {
            map._entries[keyIndex - 1]._value = value;
            return false;
        }
    }

    /**
     * @dev Removes a key-value pair from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function _remove(Map storage map, bytes32 key) private returns (bool) {
        // We read and store the key's index to prevent multiple reads from the same storage slot
        uint256 keyIndex = map._indexes[key];

        if (keyIndex != 0) { // Equivalent to contains(map, key)
            // To delete a key-value pair from the _entries array in O(1), we swap the entry to delete with the last one
            // in the array, and then remove the last entry (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = keyIndex - 1;
            uint256 lastIndex = map._entries.length - 1;

            // When the entry to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            MapEntry storage lastEntry = map._entries[lastIndex];

            // Move the last entry to the index where the entry to delete is
            map._entries[toDeleteIndex] = lastEntry;
            // Update the index for the moved entry
            map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved entry was stored
            map._entries.pop();

            // Delete the index for the deleted slot
            delete map._indexes[key];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function _contains(Map storage map, bytes32 key) private view returns (bool) {
        return map._indexes[key] != 0;
    }

    /**
     * @dev Returns the number of key-value pairs in the map. O(1).
     */
    function _length(Map storage map) private view returns (uint256) {
        return map._entries.length;
    }

   /**
    * @dev Returns the key-value pair stored at position `index` in the map. O(1).
    *
    * Note that there are no guarantees on the ordering of entries inside the
    * array, and it may change when more entries are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Map storage map, uint256 index) private view returns (bytes32, bytes32) {
        require(map._entries.length > index, "EnumerableMap: index out of bounds");

        MapEntry storage entry = map._entries[index];
        return (entry._key, entry._value);
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function _get(Map storage map, bytes32 key) private view returns (bytes32) {
        return _get(map, key, "EnumerableMap: nonexistent key");
    }

    /**
     * @dev Same as {_get}, with a custom error message when `key` is not in the map.
     */
    function _get(Map storage map, bytes32 key, string memory errorMessage) private view returns (bytes32) {
        uint256 keyIndex = map._indexes[key];
        require(keyIndex != 0, errorMessage); // Equivalent to contains(map, key)
        return map._entries[keyIndex - 1]._value; // All indexes are 1-based
    }

    // UintToAddressMap

    struct UintToAddressMap {
        Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
        return _set(map._inner, bytes32(key), bytes32(uint256(value)));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
        return _remove(map._inner, bytes32(key));
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
        return _contains(map._inner, bytes32(key));
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToAddressMap storage map) internal view returns (uint256) {
        return _length(map._inner);
    }

   /**
    * @dev Returns the element stored at position `index` in the set. O(1).
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
        (bytes32 key, bytes32 value) = _at(map._inner, index);
        return (uint256(key), address(uint256(value)));
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
        return address(uint256(_get(map._inner, bytes32(key))));
    }

    /**
     * @dev Same as {get}, with a custom error message when `key` is not in the map.
     */
    function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) {
        return address(uint256(_get(map._inner, bytes32(key), errorMessage)));
    }
}

File 14 of 17 : Strings.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev String operations.
 */
library Strings {
    /**
     * @dev Converts a `uint256` to its ASCII `string` 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);
        uint256 index = digits - 1;
        temp = value;
        while (temp != 0) {
            buffer[index--] = byte(uint8(48 + temp % 10));
            temp /= 10;
        }
        return string(buffer);
    }
}

File 15 of 17 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 16 of 17 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "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.
 */
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 () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view 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 17 of 17 : LockRegistry.sol
pragma solidity ^0.6.12;

/*
 *     ,_,
 *    (',')
 *    {/"\}
 *    -"-"-
 */

import "Ownable.sol";

abstract contract LockRegistry is Ownable {
	
	mapping(address => bool) public approvedContract;
	mapping(uint256 => uint256) public lockCount;
	mapping(uint256 => mapping(uint256 => address)) public lockMap;
	mapping(uint256 => mapping(address => uint256)) public lockMapIndex;

	event TokenLocked(uint256 indexed tokenId, address indexed approvedContract);
	event TokenUnlocked(uint256 indexed tokenId, address indexed approvedContract);

	function isUnlocked(uint256 _id) public view returns(bool) {
		return lockCount[_id] == 0;
	}

	function updateApprovedContracts(address[] calldata _contracts, bool[] calldata _values) external onlyOwner {
		require(_contracts.length == _values.length, "!length");
		for(uint256 i = 0; i < _contracts.length; i++)
			approvedContract[_contracts[i]] = _values[i];
	}

	function _lockId(uint256 _id) internal {
		require(approvedContract[msg.sender], "Cannot update map");
		require(lockMapIndex[_id][msg.sender] == 0, "ID already locked by caller");

		uint256 count = lockCount[_id] + 1;
		lockMap[_id][count] = msg.sender;
		lockMapIndex[_id][msg.sender] = count;
		lockCount[_id]++;
		emit TokenLocked(_id, msg.sender);
	}

	function _unlockId(uint256 _id) internal {
		require(approvedContract[msg.sender], "Cannot update map");
		uint256 index = lockMapIndex[_id][msg.sender];
		require(index != 0, "ID not locked by caller");
		
		uint256 last = lockCount[_id];
		if (index != last) {
			address lastContract = lockMap[_id][last];
			lockMap[_id][index] = lastContract;
			lockMap[_id][last] = address(0);
			lockMapIndex[_id][lastContract] = index;
		}
		else
			lockMap[_id][index] = address(0);
		lockMapIndex[_id][msg.sender] = 0;
		lockCount[_id]--;
		emit TokenUnlocked(_id, msg.sender);
	}

	function _freeId(uint256 _id, address _contract) internal {
		require(!approvedContract[_contract], "Cannot update map");
		uint256 index = lockMapIndex[_id][_contract];
		require(index != 0, "ID not locked");

		uint256 last = lockCount[_id];
		if (index != last) {
			address lastContract = lockMap[_id][last];
			lockMap[_id][index] = lastContract;
			lockMap[_id][last] = address(0);
			lockMapIndex[_id][lastContract] = index;
		}
		else
			lockMap[_id][index] = address(0);
		lockMapIndex[_id][_contract] = 0;
		lockCount[_id]--;
		emit TokenUnlocked(_id, _contract);
	}
}

Settings
{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"approvedContract","type":"address"}],"name":"TokenLocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"approvedContract","type":"address"}],"name":"TokenUnlocked","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"WithdrawnBatch","type":"event"},{"inputs":[],"name":"BATCH_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":"","type":"address"}],"name":"approvedContract","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"bytes","name":"depositData","type":"bytes"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"},{"internalType":"address","name":"_contract","type":"address"}],"name":"freeId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"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":"_id","type":"uint256"}],"name":"isUnlocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"lockCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"}],"name":"lockId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"lockMap","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"lockMapIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"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":"_id","type":"uint256"}],"name":"unlockId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_contracts","type":"address[]"},{"internalType":"bool[]","name":"_values","type":"bool[]"}],"name":"updateApprovedContracts","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newURI","type":"string"}],"name":"updateURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"withdrawBatch","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.