ETH Price: $2,979.45 (+2.03%)
Gas: 2 Gwei

Contract

0x25bDdD22B8BB7b9c4215c25ef1325aC6ec61B971
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Value
0x60806040140196222022-01-16 23:45:39901 days ago1642376739IN
 Create: BaseToken
0 ETH0.38112885150

View more zero value Internal Transactions in Advanced View mode

Advanced mode:
Loading...
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
BaseToken

Compiler Version
v0.8.10+commit.fc410830

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 22 : BaseToken.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.10;

import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlEnumerableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol";
import "./interfaces/IRegistry.sol";

/**
 * @dev {ERC721} Modified OZ Presets to get around private vs internal variables. includes:
 *
 *  - ability for holders to burn (destroy) their tokens
 *  - a minter role that allows for token minting (creation)
 *  - token ID and URI autogeneration
 *
 * Differs from OZ contract:
 *  - counter incrementing occurs prior to each mint; token IDs start with 1.
 *  - pausing removed
 *  - token URIs may be set individually
 *  - defers to registry for supply cap
 *  - uses admin role for setters (owner role for OpenSea related store setup)
 *
 *
 * This contract uses {AccessControl} to lock permissioned functions using the
 * different roles - head to its documentation for details.
 *
 * The account that deploys the contract will be granted the minter and owner
 * roles, as well as the default admin role, which will let it grant both minter
 * and owner roles to other accounts.
 */
contract BaseToken is
    ContextUpgradeable,
    OwnableUpgradeable,
    AccessControlEnumerableUpgradeable,
    ERC721EnumerableUpgradeable,
    ERC721BurnableUpgradeable
{

    using AddressUpgradeable for address;
    using StringsUpgradeable for uint256;
    using CountersUpgradeable for CountersUpgradeable.Counter;

    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

    CountersUpgradeable.Counter internal _minted;       // Cumulative tokens minted.
                                                        // Allows burning while correctly counting the next tokenId.

    string internal _baseTokenURI;                      // Settable base url for tokens. Creates tokenUri as: [_baseTokenURI]/[token number]
    mapping (uint256 => string) internal _tokenURIs;    // Can be manually set by OWNER_ROLE.
    address public registry;


    /* -------------------------------- Modifiers ------------------------------- */

    /**
     * @dev Throws if called by any account other than the admin.
     */
    modifier onlyAdmin() {
        require(
            hasRole(DEFAULT_ADMIN_ROLE, _msgSender()),
            "onlyAdmin: caller is not the admin");
        _;
    }

    /* ------------------------------- Constructor ------------------------------ */

    /**
     * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `OWNER_ROLE` to the
     * account that deploys the contract.
     */
    function initialize(
        string memory name_,
        string memory symbol_
    )
        public
        initializer
    {

        __Context_init_unchained();
        __ERC165_init_unchained();

        __Ownable_init_unchained();
        __AccessControl_init_unchained();
        __AccessControlEnumerable_init_unchained();

        __ERC721_init_unchained(name_, symbol_);
        __ERC721Enumerable_init_unchained();
        __ERC721Burnable_init_unchained();


        _setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
        registry = _msgSender();

    }


    /* ----------------------------- Public Getters ----------------------------- */

    function maxSupply() public view returns (uint256) {
        return IRegistry(registry).getProjectMaxSupply(address(this));
    }

    function license() public view returns (string memory) {
        return IRegistry(registry).getProjectLicense(address(this));
    }

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

    function totalMinted() public view returns (uint256) {
        return _minted.current();
    }

    function getUserBalance(address user) public view returns (uint256) {
        return balanceOf(user);
    }

    function getTokenOfUserByIndex(address user, uint256 index) public view returns (uint256) {
        return tokenOfOwnerByIndex(user, index);
    }



    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory _tokenURI = _tokenURIs[tokenId];
        string memory base = _baseURI();

        // If there is no base URI OR if both are set, return the token URI.
        if (bytes(base).length == 0 || bytes(_tokenURI).length > 0) {
            return _tokenURI;
        }

        // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI.
        return string(abi.encodePacked(base, (tokenId).toString()));
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(AccessControlEnumerableUpgradeable, ERC721Upgradeable, ERC721EnumerableUpgradeable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }


   /* ------------------------------ Admin Methods ------------------------------ */

    // Sets base URI for all tokens, only able to be called by contract owner
    function setBaseURI(string memory baseURI_) external onlyAdmin {
        _baseTokenURI = baseURI_;
    }

    // Sets Token URI for one tokenID, only able to be called by contract owner
    function setTokenURI(uint256 tokenId, string memory newTokenURI) external onlyAdmin {
        _tokenURIs[tokenId] = newTokenURI;
    }


    /* ----------------------------- Minter Methods ----------------------------- */

    /**
     * @dev Creates a new token for `to`. Its token ID will be automatically
     * assigned (and available on the emitted {IERC721-Transfer} event), and the token
     * URI autogenerated based on the base URI passed at construction.
     *
     * See {ERC721-_mint}.
     *
     * Requirements:
     *
     * - the caller must have the `MINTER_ROLE`.
     */
    function mint(address to) public virtual {
        require(hasRole(MINTER_ROLE, _msgSender()), "BaseToken: must have minter role to mint");

        // Increment first so we start at 1.
        _minted.increment();
        uint256 currentIdx = _minted.current();

        // Less efficient than checking for batches but the check
        // cannot be missed if checked here.
        require(currentIdx <= maxSupply(), "BaseToken: maxSupply exceeded");

        // We cannot just use balanceOf to create the new tokenId because tokens
        // can be burned (destroyed), so we need a separate counter.
        _mint(to, currentIdx);
    }


    /* -------------------------------- Internal -------------------------------- */

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

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override(ERC721Upgradeable, ERC721EnumerableUpgradeable) {
        super._beforeTokenTransfer(from, to, tokenId);
    }

}

File 2 of 22 : ERC721EnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../ERC721Upgradeable.sol";
import "./IERC721EnumerableUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721EnumerableUpgradeable is Initializable, ERC721Upgradeable, IERC721EnumerableUpgradeable {
    function __ERC721Enumerable_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __ERC721Enumerable_init_unchained();
    }

    function __ERC721Enumerable_init_unchained() internal initializer {
    }
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165Upgradeable, ERC721Upgradeable) returns (bool) {
        return interfaceId == type(IERC721EnumerableUpgradeable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721Upgradeable.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721EnumerableUpgradeable.totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @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 override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721Upgradeable.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721Upgradeable.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
    uint256[46] private __gap;
}

File 3 of 22 : ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";

/**
 * @title ERC721 Burnable Token
 * @dev ERC721 Token that can be irreversibly burned (destroyed).
 */
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
    function __ERC721Burnable_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __ERC721Burnable_init_unchained();
    }

    function __ERC721Burnable_init_unchained() internal initializer {
    }
    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
        _burn(tokenId);
    }
    uint256[50] private __gap;
}

File 4 of 22 : AccessControlEnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/AccessControlEnumerable.sol)

pragma solidity ^0.8.0;

import "./IAccessControlEnumerableUpgradeable.sol";
import "./AccessControlUpgradeable.sol";
import "../utils/structs/EnumerableSetUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Extension of {AccessControl} that allows enumerating the members of each role.
 */
abstract contract AccessControlEnumerableUpgradeable is Initializable, IAccessControlEnumerableUpgradeable, AccessControlUpgradeable {
    function __AccessControlEnumerable_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __AccessControl_init_unchained();
        __AccessControlEnumerable_init_unchained();
    }

    function __AccessControlEnumerable_init_unchained() internal initializer {
    }
    using EnumerableSetUpgradeable for EnumerableSetUpgradeable.AddressSet;

    mapping(bytes32 => EnumerableSetUpgradeable.AddressSet) private _roleMembers;

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

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view override returns (address) {
        return _roleMembers[role].at(index);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view override returns (uint256) {
        return _roleMembers[role].length();
    }

    /**
     * @dev Overload {_grantRole} to track enumerable memberships
     */
    function _grantRole(bytes32 role, address account) internal virtual override {
        super._grantRole(role, account);
        _roleMembers[role].add(account);
    }

    /**
     * @dev Overload {_revokeRole} to track enumerable memberships
     */
    function _revokeRole(bytes32 role, address account) internal virtual override {
        super._revokeRole(role, account);
        _roleMembers[role].remove(account);
    }
    uint256[49] private __gap;
}

File 5 of 22 : OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal initializer {
        _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);
    }
    uint256[49] private __gap;
}

File 6 of 22 : ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    uint256[50] private __gap;
}

File 7 of 22 : CountersUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library CountersUpgradeable {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

File 8 of 22 : IRegistry.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.10;

interface IRegistry {

    enum ProjectStatus { Locked, Whitelist, Active, WhitelistByToken}

    function getProjectMaxSupply(address project)
        external
        view
        returns(uint256);
    function getProjectStatus(address project)
        external
        view
        returns(ProjectStatus);
    function getProjectPrice(address project)
        external
        view
        returns(uint256);
    function getProjectMaxBlockPurchase(address project)
        external
        view
        returns(uint256);
    function getProjectMaxWalletPurchase(address project)
        external
        view
        returns(uint256);
    function getProjectFreeStatus(address project)
        external
        view
        returns(bool);
    function getProjectLicense(address project)
        external
        view
        returns(string memory);
}

File 9 of 22 : ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
    using AddressUpgradeable for address;
    using StringsUpgradeable for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    function __ERC721_init(string memory name_, string memory symbol_) internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __ERC721_init_unchained(name_, symbol_);
    }

    function __ERC721_init_unchained(string memory name_, string memory symbol_) internal initializer {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC721Upgradeable).interfaceId ||
            interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

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

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

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

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

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

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

    /**
     * @dev Base URI for computing {tokenURI}. 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 virtual override {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

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

        _approve(to, tokenId);
    }

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

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

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

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

        _transfer(from, to, tokenId);
    }

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

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

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

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

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

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

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

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

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

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

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

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721Upgradeable.ownerOf(tokenId);

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

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

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

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

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

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

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @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 IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @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` and `to` are never both zero.
     *
     * 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 {}
    uint256[44] private __gap;
}

File 10 of 22 : IERC721EnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721Upgradeable.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721EnumerableUpgradeable is IERC721Upgradeable {
    /**
     * @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 11 of 22 : Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}

File 12 of 22 : IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @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 13 of 22 : IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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 IERC721ReceiverUpgradeable {
    /**
     * @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 14 of 22 : IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721Upgradeable.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
    /**
     * @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 15 of 22 : AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)

pragma solidity ^0.8.0;

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

        uint256 size;
        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");

        (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 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 16 of 22 : StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    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 17 of 22 : ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.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 ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal initializer {
        __ERC165_init_unchained();
    }

    function __ERC165_init_unchained() internal initializer {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    uint256[50] private __gap;
}

File 18 of 22 : IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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 IERC165Upgradeable {
    /**
     * @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 19 of 22 : IAccessControlEnumerableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/IAccessControlEnumerable.sol)

pragma solidity ^0.8.0;

import "./IAccessControlUpgradeable.sol";

/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerableUpgradeable is IAccessControlUpgradeable {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}

File 20 of 22 : AccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControlUpgradeable.sol";
import "../utils/ContextUpgradeable.sol";
import "../utils/StringsUpgradeable.sol";
import "../utils/introspection/ERC165Upgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
    function __AccessControl_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __AccessControl_init_unchained();
    }

    function __AccessControl_init_unchained() internal initializer {
    }
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

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

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        StringsUpgradeable.toHexString(uint160(account), 20),
                        " is missing role ",
                        StringsUpgradeable.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
    uint256[49] private __gap;
}

File 21 of 22 : EnumerableSetUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

/**
 * @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 v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSetUpgradeable {
    // 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;

            if (lastIndex != toDeleteIndex) {
                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] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // 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) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        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(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, 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(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set 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(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // 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(uint160(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(uint160(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(uint160(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(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // 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));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

File 22 of 22 : IAccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControlUpgradeable {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

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

Contract Security Audit

Contract ABI

[{"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":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","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":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","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":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getTokenOfUserByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getUserBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"license","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","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":"registry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI_","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"newTokenURI","type":"string"}],"name":"setTokenURI","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":"totalMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Deployed Bytecode

0x608060405234801561001057600080fd5b50600436106102485760003560e01c80636c0360eb1161013b578063a22cb465116100b8578063d53913931161007c578063d5391393146104e4578063d547741f1461050b578063d5abeb011461051e578063e985e9c514610526578063f2fde38b1461056357600080fd5b8063a22cb46514610490578063a2309ff8146104a3578063b88d4fde146104ab578063c87b56dd146104be578063ca15c873146104d157600080fd5b80638da5cb5b116100ff5780638da5cb5b146104495780639010d07c1461045a57806391d148541461046d57806395d89b4114610480578063a217fddf1461048857600080fd5b80636c0360eb146103ff57806370a0823114610407578063715018a61461041a5780637b1039991461042257806383e93a781461043657600080fd5b806336568abe116101c95780634f6ccce71161018d5780634f6ccce7146103ab57806355f804b3146103be5780636352211e146103d15780636a627842146103e45780636b87d24c146103f757600080fd5b806336568abe1461034c57806342842e0e1461035f57806342966c681461037257806347734892146103855780634cd88b761461039857600080fd5b806318160ddd1161021057806318160ddd146102dd57806323b872dd146102f0578063248a9ca3146103035780632f2ff15d146103265780632f745c591461033957600080fd5b806301ffc9a71461024d57806306fdde0314610275578063081812fc1461028a578063095ea7b3146102b5578063162094c4146102ca575b600080fd5b61026061025b3660046124be565b610576565b60405190151581526020015b60405180910390f35b61027d610587565b60405161026c9190612533565b61029d610298366004612546565b610619565b6040516001600160a01b03909116815260200161026c565b6102c86102c336600461257b565b6106b3565b005b6102c86102d8366004612672565b6107c9565b61012f545b60405190815260200161026c565b6102c86102fe3660046126b9565b610810565b6102e2610311366004612546565b60009081526097602052604090206001015490565b6102c86103343660046126f5565b610842565b6102e261034736600461257b565b610868565b6102c861035a3660046126f5565b6108ff565b6102c861036d3660046126b9565b61097d565b6102c8610380366004612546565b610998565b6102e2610393366004612721565b610a12565b6102c86103a636600461273c565b610a1d565b6102e26103b9366004612546565b610aea565b6102c86103cc366004612796565b610b7f565b61029d6103df366004612546565b610bba565b6102c86103f2366004612721565b610c31565b61027d610d36565b61027d610dad565b6102e2610415366004612721565b610db7565b6102c8610e3e565b6101945461029d906001600160a01b031681565b6102e261044436600461257b565b610ea4565b6033546001600160a01b031661029d565b61029d6104683660046127cb565b610eb7565b61026061047b3660046126f5565b610ecf565b61027d610efa565b6102e2600081565b6102c861049e3660046127ed565b610f09565b6102e2610f14565b6102c86104b9366004612829565b610f20565b61027d6104cc366004612546565b610f58565b6102e26104df366004612546565b6110cd565b6102e27f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a681565b6102c86105193660046126f5565b6110e4565b6102e261110a565b6102606105343660046128a5565b6001600160a01b0391821660009081526101006020908152604080832093909416825291909152205460ff1690565b6102c8610571366004612721565b611178565b600061058182611240565b92915050565b606060fb8054610596906128cf565b80601f01602080910402602001604051908101604052809291908181526020018280546105c2906128cf565b801561060f5780601f106105e45761010080835404028352916020019161060f565b820191906000526020600020905b8154815290600101906020018083116105f257829003601f168201915b5050505050905090565b600081815260fd60205260408120546001600160a01b03166106975760405162461bcd60e51b815260206004820152602c60248201527f4552433732313a20617070726f76656420717565727920666f72206e6f6e657860448201526b34b9ba32b73a103a37b5b2b760a11b60648201526084015b60405180910390fd5b50600090815260ff60205260409020546001600160a01b031690565b60006106be82610bba565b9050806001600160a01b0316836001600160a01b0316141561072c5760405162461bcd60e51b815260206004820152602160248201527f4552433732313a20617070726f76616c20746f2063757272656e74206f776e656044820152603960f91b606482015260840161068e565b336001600160a01b038216148061074857506107488133610534565b6107ba5760405162461bcd60e51b815260206004820152603860248201527f4552433732313a20617070726f76652063616c6c6572206973206e6f74206f7760448201527f6e6572206e6f7220617070726f76656420666f7220616c6c0000000000000000606482015260840161068e565b6107c48383611265565b505050565b6107d4600033610ecf565b6107f05760405162461bcd60e51b815260040161068e9061290a565b60008281526101936020908152604090912082516107c49284019061240f565b61081b335b826112d3565b6108375760405162461bcd60e51b815260040161068e9061294c565b6107c48383836113cb565b60008281526097602052604090206001015461085e8133611576565b6107c483836115da565b600061087383610db7565b82106108d55760405162461bcd60e51b815260206004820152602b60248201527f455243373231456e756d657261626c653a206f776e657220696e646578206f7560448201526a74206f6620626f756e647360a81b606482015260840161068e565b506001600160a01b0391909116600090815261012d60209081526040808320938352929052205490565b6001600160a01b038116331461096f5760405162461bcd60e51b815260206004820152602f60248201527f416363657373436f6e74726f6c3a2063616e206f6e6c792072656e6f756e636560448201526e103937b632b9903337b91039b2b63360891b606482015260840161068e565b61097982826115fc565b5050565b6107c483838360405180602001604052806000815250610f20565b6109a133610815565b610a065760405162461bcd60e51b815260206004820152603060248201527f4552433732314275726e61626c653a2063616c6c6572206973206e6f74206f7760448201526f1b995c881b9bdc88185c1c1c9bdd995960821b606482015260840161068e565b610a0f8161161e565b50565b600061058182610db7565b600054610100900460ff1680610a36575060005460ff16155b610a525760405162461bcd60e51b815260040161068e9061299d565b600054610100900460ff16158015610a74576000805461ffff19166101011790555b610a7c6116c5565b610a846116c5565b610a8c611730565b610a946116c5565b610a9c6116c5565b610aa68383611790565b610aae6116c5565b610ab66116c5565b610ac1600033611825565b61019480546001600160a01b0319163317905580156107c4576000805461ff0019169055505050565b6000610af661012f5490565b8210610b595760405162461bcd60e51b815260206004820152602c60248201527f455243373231456e756d657261626c653a20676c6f62616c20696e646578206f60448201526b7574206f6620626f756e647360a01b606482015260840161068e565b61012f8281548110610b6d57610b6d6129eb565b90600052602060002001549050919050565b610b8a600033610ecf565b610ba65760405162461bcd60e51b815260040161068e9061290a565b80516109799061019290602084019061240f565b600081815260fd60205260408120546001600160a01b0316806105815760405162461bcd60e51b815260206004820152602960248201527f4552433732313a206f776e657220717565727920666f72206e6f6e657869737460448201526832b73a103a37b5b2b760b91b606482015260840161068e565b610c5b7f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a633610ecf565b610cb85760405162461bcd60e51b815260206004820152602860248201527f42617365546f6b656e3a206d7573742068617665206d696e74657220726f6c65604482015267081d1bc81b5a5b9d60c21b606482015260840161068e565b610cc761019180546001019055565b6000610cd36101915490565b9050610cdd61110a565b811115610d2c5760405162461bcd60e51b815260206004820152601d60248201527f42617365546f6b656e3a206d6178537570706c79206578636565646564000000604482015260640161068e565b610979828261182f565b61019454604051634aa5d2b360e01b81523060048201526060916001600160a01b031690634aa5d2b390602401600060405180830381865afa158015610d80573d6000803e3d6000fd5b505050506040513d6000823e601f3d908101601f19168201604052610da89190810190612a01565b905090565b6060610da861197d565b60006001600160a01b038216610e225760405162461bcd60e51b815260206004820152602a60248201527f4552433732313a2062616c616e636520717565727920666f7220746865207a65604482015269726f206164647265737360b01b606482015260840161068e565b506001600160a01b0316600090815260fe602052604090205490565b6033546001600160a01b03163314610e985760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604482015260640161068e565b610ea2600061198d565b565b6000610eb08383610868565b9392505050565b600082815260c960205260408120610eb090836119df565b60009182526097602090815260408084206001600160a01b0393909316845291905290205460ff1690565b606060fc8054610596906128cf565b6109793383836119eb565b6000610da86101915490565b610f2a33836112d3565b610f465760405162461bcd60e51b815260040161068e9061294c565b610f5284848484611abb565b50505050565b600081815260fd60205260409020546060906001600160a01b0316610fd75760405162461bcd60e51b815260206004820152602f60248201527f4552433732314d657461646174613a2055524920717565727920666f72206e6f60448201526e3732bc34b9ba32b73a103a37b5b2b760891b606482015260840161068e565b6000828152610193602052604081208054610ff1906128cf565b80601f016020809104026020016040519081016040528092919081815260200182805461101d906128cf565b801561106a5780601f1061103f5761010080835404028352916020019161106a565b820191906000526020600020905b81548152906001019060200180831161104d57829003601f168201915b50505050509050600061107b61197d565b905080516000148061108e575060008251115b1561109a575092915050565b806110a485611aee565b6040516020016110b5929190612a78565b60405160208183030381529060405292505050919050565b600081815260c96020526040812061058190611bec565b6000828152609760205260409020600101546111008133611576565b6107c483836115fc565b610194546040516356219abd60e01b81523060048201526000916001600160a01b0316906356219abd90602401602060405180830381865afa158015611154573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610da89190612aa7565b6033546001600160a01b031633146111d25760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e6572604482015260640161068e565b6001600160a01b0381166112375760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b606482015260840161068e565b610a0f8161198d565b60006001600160e01b0319821663780e9d6360e01b1480610581575061058182611bf6565b600081815260ff6020526040902080546001600160a01b0319166001600160a01b038416908117909155819061129a82610bba565b6001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92560405160405180910390a45050565b600081815260fd60205260408120546001600160a01b031661134c5760405162461bcd60e51b815260206004820152602c60248201527f4552433732313a206f70657261746f7220717565727920666f72206e6f6e657860448201526b34b9ba32b73a103a37b5b2b760a11b606482015260840161068e565b600061135783610bba565b9050806001600160a01b0316846001600160a01b031614806113925750836001600160a01b031661138784610619565b6001600160a01b0316145b806113c357506001600160a01b038082166000908152610100602090815260408083209388168352929052205460ff165b949350505050565b826001600160a01b03166113de82610bba565b6001600160a01b0316146114465760405162461bcd60e51b815260206004820152602960248201527f4552433732313a207472616e73666572206f6620746f6b656e2074686174206960448201526839903737ba1037bbb760b91b606482015260840161068e565b6001600160a01b0382166114a85760405162461bcd60e51b8152602060048201526024808201527f4552433732313a207472616e7366657220746f20746865207a65726f206164646044820152637265737360e01b606482015260840161068e565b6114b3838383611c36565b6114be600082611265565b6001600160a01b038316600090815260fe602052604081208054600192906114e7908490612ad6565b90915550506001600160a01b038216600090815260fe60205260408120805460019290611515908490612aed565b9091555050600081815260fd602052604080822080546001600160a01b0319166001600160a01b0386811691821790925591518493918716917fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef91a4505050565b6115808282610ecf565b61097957611598816001600160a01b03166014611c41565b6115a3836020611c41565b6040516020016115b4929190612b05565b60408051601f198184030181529082905262461bcd60e51b825261068e91600401612533565b6115e48282611ddd565b600082815260c9602052604090206107c49082611e63565b6116068282611e78565b600082815260c9602052604090206107c49082611edf565b600061162982610bba565b905061163781600084611c36565b611642600083611265565b6001600160a01b038116600090815260fe6020526040812080546001929061166b908490612ad6565b9091555050600082815260fd602052604080822080546001600160a01b0319169055518391906001600160a01b038416907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908390a45050565b600054610100900460ff16806116de575060005460ff16155b6116fa5760405162461bcd60e51b815260040161068e9061299d565b600054610100900460ff1615801561171c576000805461ffff19166101011790555b8015610a0f576000805461ff001916905550565b600054610100900460ff1680611749575060005460ff16155b6117655760405162461bcd60e51b815260040161068e9061299d565b600054610100900460ff16158015611787576000805461ffff19166101011790555b61171c3361198d565b600054610100900460ff16806117a9575060005460ff16155b6117c55760405162461bcd60e51b815260040161068e9061299d565b600054610100900460ff161580156117e7576000805461ffff19166101011790555b82516117fa9060fb90602086019061240f565b50815161180e9060fc90602085019061240f565b5080156107c4576000805461ff0019169055505050565b61097982826115da565b6001600160a01b0382166118855760405162461bcd60e51b815260206004820181905260248201527f4552433732313a206d696e7420746f20746865207a65726f2061646472657373604482015260640161068e565b600081815260fd60205260409020546001600160a01b0316156118ea5760405162461bcd60e51b815260206004820152601c60248201527f4552433732313a20746f6b656e20616c7265616479206d696e74656400000000604482015260640161068e565b6118f660008383611c36565b6001600160a01b038216600090815260fe6020526040812080546001929061191f908490612aed565b9091555050600081815260fd602052604080822080546001600160a01b0319166001600160a01b03861690811790915590518392907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908290a45050565b60606101928054610596906128cf565b603380546001600160a01b038381166001600160a01b0319831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b6000610eb08383611ef4565b816001600160a01b0316836001600160a01b03161415611a4d5760405162461bcd60e51b815260206004820152601960248201527f4552433732313a20617070726f766520746f2063616c6c657200000000000000604482015260640161068e565b6001600160a01b0383811660008181526101006020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b611ac68484846113cb565b611ad284848484611f1e565b610f525760405162461bcd60e51b815260040161068e90612b7a565b606081611b125750506040805180820190915260018152600360fc1b602082015290565b8160005b8115611b3c5780611b2681612bcc565b9150611b359050600a83612bfd565b9150611b16565b60008167ffffffffffffffff811115611b5757611b576125a5565b6040519080825280601f01601f191660200182016040528015611b81576020820181803683370190505b5090505b84156113c357611b96600183612ad6565b9150611ba3600a86612c11565b611bae906030612aed565b60f81b818381518110611bc357611bc36129eb565b60200101906001600160f81b031916908160001a905350611be5600a86612bfd565b9450611b85565b6000610581825490565b60006001600160e01b031982166380ac58cd60e01b1480611c2757506001600160e01b03198216635b5e139f60e01b145b8061058157506105818261201c565b6107c4838383612041565b60606000611c50836002612c25565b611c5b906002612aed565b67ffffffffffffffff811115611c7357611c736125a5565b6040519080825280601f01601f191660200182016040528015611c9d576020820181803683370190505b509050600360fc1b81600081518110611cb857611cb86129eb565b60200101906001600160f81b031916908160001a905350600f60fb1b81600181518110611ce757611ce76129eb565b60200101906001600160f81b031916908160001a9053506000611d0b846002612c25565b611d16906001612aed565b90505b6001811115611d8e576f181899199a1a9b1b9c1cb0b131b232b360811b85600f1660108110611d4a57611d4a6129eb565b1a60f81b828281518110611d6057611d606129eb565b60200101906001600160f81b031916908160001a90535060049490941c93611d8781612c44565b9050611d19565b508315610eb05760405162461bcd60e51b815260206004820181905260248201527f537472696e67733a20686578206c656e67746820696e73756666696369656e74604482015260640161068e565b611de78282610ecf565b6109795760008281526097602090815260408083206001600160a01b03851684529091529020805460ff19166001179055611e1f3390565b6001600160a01b0316816001600160a01b0316837f2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d60405160405180910390a45050565b6000610eb0836001600160a01b0384166120fb565b611e828282610ecf565b156109795760008281526097602090815260408083206001600160a01b0385168085529252808320805460ff1916905551339285917ff6391f5c32d9c69d2a47ea670b442974b53935d1edc7fd64eb21e047a839171b9190a45050565b6000610eb0836001600160a01b03841661214a565b6000826000018281548110611f0b57611f0b6129eb565b9060005260206000200154905092915050565b60006001600160a01b0384163b1561201157604051630a85bd0160e11b81526001600160a01b0385169063150b7a0290611f62903390899088908890600401612c5b565b6020604051808303816000875af1925050508015611f9d575060408051601f3d908101601f19168201909252611f9a91810190612c98565b60015b611ff7573d808015611fcb576040519150601f19603f3d011682016040523d82523d6000602084013e611fd0565b606091505b508051611fef5760405162461bcd60e51b815260040161068e90612b7a565b805181602001fd5b6001600160e01b031916630a85bd0160e11b1490506113c3565b506001949350505050565b60006001600160e01b03198216635a05180f60e01b148061058157506105818261223d565b6001600160a01b03831661209e576120998161012f8054600083815261013060205260408120829055600182018355919091527f232da9e50dad2971456a78fb5cd6ff6b75019984d6e918139ce990999420f9790155565b6120c1565b816001600160a01b0316836001600160a01b0316146120c1576120c18382612272565b6001600160a01b0382166120d8576107c481612314565b826001600160a01b0316826001600160a01b0316146107c4576107c482826123c9565b600081815260018301602052604081205461214257508154600181810184556000848152602080822090930184905584548482528286019093526040902091909155610581565b506000610581565b6000818152600183016020526040812054801561223357600061216e600183612ad6565b855490915060009061218290600190612ad6565b90508181146121e75760008660000182815481106121a2576121a26129eb565b90600052602060002001549050808760000184815481106121c5576121c56129eb565b6000918252602080832090910192909255918252600188019052604090208390555b85548690806121f8576121f8612cb5565b600190038181906000526020600020016000905590558560010160008681526020019081526020016000206000905560019350505050610581565b6000915050610581565b60006001600160e01b03198216637965db0b60e01b148061058157506301ffc9a760e01b6001600160e01b0319831614610581565b6000600161227f84610db7565b6122899190612ad6565b600083815261012e60205260409020549091508082146122df576001600160a01b038416600090815261012d60209081526040808320858452825280832054848452818420819055835261012e90915290208190555b50600091825261012e602090815260408084208490556001600160a01b03909416835261012d81528383209183525290812055565b61012f5460009061232790600190612ad6565b6000838152610130602052604081205461012f8054939450909284908110612351576123516129eb565b906000526020600020015490508061012f8381548110612373576123736129eb565b6000918252602080832090910192909255828152610130909152604080822084905585825281205561012f8054806123ad576123ad612cb5565b6001900381819060005260206000200160009055905550505050565b60006123d483610db7565b6001600160a01b03909316600090815261012d60209081526040808320868452825280832085905593825261012e9052919091209190915550565b82805461241b906128cf565b90600052602060002090601f01602090048101928261243d5760008555612483565b82601f1061245657805160ff1916838001178555612483565b82800160010185558215612483579182015b82811115612483578251825591602001919060010190612468565b5061248f929150612493565b5090565b5b8082111561248f5760008155600101612494565b6001600160e01b031981168114610a0f57600080fd5b6000602082840312156124d057600080fd5b8135610eb0816124a8565b60005b838110156124f65781810151838201526020016124de565b83811115610f525750506000910152565b6000815180845261251f8160208601602086016124db565b601f01601f19169290920160200192915050565b602081526000610eb06020830184612507565b60006020828403121561255857600080fd5b5035919050565b80356001600160a01b038116811461257657600080fd5b919050565b6000806040838503121561258e57600080fd5b6125978361255f565b946020939093013593505050565b634e487b7160e01b600052604160045260246000fd5b604051601f8201601f1916810167ffffffffffffffff811182821017156125e4576125e46125a5565b604052919050565b600067ffffffffffffffff821115612606576126066125a5565b50601f01601f191660200190565b6000612627612622846125ec565b6125bb565b905082815283838301111561263b57600080fd5b828260208301376000602084830101529392505050565b600082601f83011261266357600080fd5b610eb083833560208501612614565b6000806040838503121561268557600080fd5b82359150602083013567ffffffffffffffff8111156126a357600080fd5b6126af85828601612652565b9150509250929050565b6000806000606084860312156126ce57600080fd5b6126d78461255f565b92506126e56020850161255f565b9150604084013590509250925092565b6000806040838503121561270857600080fd5b823591506127186020840161255f565b90509250929050565b60006020828403121561273357600080fd5b610eb08261255f565b6000806040838503121561274f57600080fd5b823567ffffffffffffffff8082111561276757600080fd5b61277386838701612652565b9350602085013591508082111561278957600080fd5b506126af85828601612652565b6000602082840312156127a857600080fd5b813567ffffffffffffffff8111156127bf57600080fd5b6113c384828501612652565b600080604083850312156127de57600080fd5b50508035926020909101359150565b6000806040838503121561280057600080fd5b6128098361255f565b91506020830135801515811461281e57600080fd5b809150509250929050565b6000806000806080858703121561283f57600080fd5b6128488561255f565b93506128566020860161255f565b925060408501359150606085013567ffffffffffffffff81111561287957600080fd5b8501601f8101871361288a57600080fd5b61289987823560208401612614565b91505092959194509250565b600080604083850312156128b857600080fd5b6128c18361255f565b91506127186020840161255f565b600181811c908216806128e357607f821691505b6020821081141561290457634e487b7160e01b600052602260045260246000fd5b50919050565b60208082526022908201527f6f6e6c7941646d696e3a2063616c6c6572206973206e6f74207468652061646d60408201526134b760f11b606082015260800190565b60208082526031908201527f4552433732313a207472616e736665722063616c6c6572206973206e6f74206f6040820152701ddb995c881b9bdc88185c1c1c9bdd9959607a1b606082015260800190565b6020808252602e908201527f496e697469616c697a61626c653a20636f6e747261637420697320616c72656160408201526d191e481a5b9a5d1a585b1a5e995960921b606082015260800190565b634e487b7160e01b600052603260045260246000fd5b600060208284031215612a1357600080fd5b815167ffffffffffffffff811115612a2a57600080fd5b8201601f81018413612a3b57600080fd5b8051612a49612622826125ec565b818152856020838501011115612a5e57600080fd5b612a6f8260208301602086016124db565b95945050505050565b60008351612a8a8184602088016124db565b835190830190612a9e8183602088016124db565b01949350505050565b600060208284031215612ab957600080fd5b5051919050565b634e487b7160e01b600052601160045260246000fd5b600082821015612ae857612ae8612ac0565b500390565b60008219821115612b0057612b00612ac0565b500190565b7f416363657373436f6e74726f6c3a206163636f756e7420000000000000000000815260008351612b3d8160178501602088016124db565b7001034b99036b4b9b9b4b733903937b6329607d1b6017918401918201528351612b6e8160288401602088016124db565b01602801949350505050565b60208082526032908201527f4552433732313a207472616e7366657220746f206e6f6e20455243373231526560408201527131b2b4bb32b91034b6b83632b6b2b73a32b960711b606082015260800190565b6000600019821415612be057612be0612ac0565b5060010190565b634e487b7160e01b600052601260045260246000fd5b600082612c0c57612c0c612be7565b500490565b600082612c2057612c20612be7565b500690565b6000816000190483118215151615612c3f57612c3f612ac0565b500290565b600081612c5357612c53612ac0565b506000190190565b6001600160a01b0385811682528416602082015260408101839052608060608201819052600090612c8e90830184612507565b9695505050505050565b600060208284031215612caa57600080fd5b8151610eb0816124a8565b634e487b7160e01b600052603160045260246000fdfea264697066735822122030d7de5a0f826f051870509e08a295b03b7f38817f65a3442d1e86e5051896b064736f6c634300080a0033

Block Transaction Difficulty Gas Used Reward
View All Blocks Produced

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading...
Loading
Loading...
Loading

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Loading...
Loading
[ Download: CSV Export  ]

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.