bnpl

{ "address": "0xb015d0ca2a3d7bc9340F6B109E1bCfa81fdFd569", "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": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": true, "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "approve", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "operator", "type": "address" } ], "name": "isApprovedForAll", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "mint", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "ownerOf", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "safeTransferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "safeTransferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "operator", "type": "address" }, { "internalType": "bool", "name": "approved", "type": "bool" } ], "name": "setApprovalForAll", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes4", "name": "interfaceId", "type": "bytes4" } ], "name": "supportsInterface", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "name": "tokenURI", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "pure", "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" } ], "transactionHash": "0xbdbdd494c7401ca7ab041ff462baaa9364044b5701328a4bdbd65f68235aaa38", "receipt": { "to": null, "from": "0xf90E1475dbA948Fec94Be2b83661d8381C900d91", "contractAddress": "0xb015d0ca2a3d7bc9340F6B109E1bCfa81fdFd569", "transactionIndex": 0, "gasUsed": "1296298", "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "blockHash": "0xe02b7a69c77f053877f363709574a979426623322a3db48a38bf8f4dfe5cc7fb", "transactionHash": "0xbdbdd494c7401ca7ab041ff462baaa9364044b5701328a4bdbd65f68235aaa38", "logs": [], "blockNumber": 3, "cumulativeGasUsed": "1296298", "status": 1, "byzantium": true }, "args": [], "numDeployments": 1, "solcInputHash": "302b5978d8e83675d9e89513cc8bfe9e", "metadata": "{\"compiler\":{\"version\":\"0.8.14+commit.80d49f37\"},\"language\":\"Solidity\",\"output\":{\"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\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"tokenURI\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"pure\",\"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\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"approve(address,uint256)\":{\"details\":\"See {IERC721-approve}.\"},\"balanceOf(address)\":{\"details\":\"See {IERC721-balanceOf}.\"},\"getApproved(uint256)\":{\"details\":\"See {IERC721-getApproved}.\"},\"isApprovedForAll(address,address)\":{\"details\":\"See {IERC721-isApprovedForAll}.\"},\"name()\":{\"details\":\"See {IERC721Metadata-name}.\"},\"ownerOf(uint256)\":{\"details\":\"See {IERC721-ownerOf}.\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"See {IERC721-safeTransferFrom}.\"},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"See {IERC721-safeTransferFrom}.\"},\"setApprovalForAll(address,bool)\":{\"details\":\"See {IERC721-setApprovalForAll}.\"},\"supportsInterface(bytes4)\":{\"details\":\"See {IERC165-supportsInterface}.\"},\"symbol()\":{\"details\":\"See {IERC721Metadata-symbol}.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"See {IERC721-transferFrom}.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/test/TestERC721.sol\":\"TestERC721\"},\"evmVersion\":\"london\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC721/ERC721.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"./IERC721.sol\\\";\\nimport \\\"./IERC721Receiver.sol\\\";\\nimport \\\"./extensions/IERC721Metadata.sol\\\";\\nimport \\\"../../utils/Address.sol\\\";\\nimport \\\"../../utils/Context.sol\\\";\\nimport \\\"../../utils/Strings.sol\\\";\\nimport \\\"../../utils/introspection/ERC165.sol\\\";\\n\\n/**\\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\\n * {ERC721Enumerable}.\\n */\\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\\n using Address for address;\\n using Strings for uint256;\\n\\n // Token name\\n string private _name;\\n\\n // Token symbol\\n string private _symbol;\\n\\n // Mapping from token ID to owner address\\n mapping(uint256 => address) private _owners;\\n\\n // Mapping owner address to token count\\n mapping(address => uint256) private _balances;\\n\\n // Mapping from token ID to approved address\\n mapping(uint256 => address) private _tokenApprovals;\\n\\n // Mapping from owner to operator approvals\\n mapping(address => mapping(address => bool)) private _operatorApprovals;\\n\\n /**\\n * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\\n */\\n constructor(string memory name_, string memory symbol_) {\\n _name = name_;\\n _symbol = symbol_;\\n }\\n\\n /**\\n * @dev See {IERC165-supportsInterface}.\\n */\\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\\n return\\n interfaceId == type(IERC721).interfaceId ||\\n interfaceId == type(IERC721Metadata).interfaceId ||\\n super.supportsInterface(interfaceId);\\n }\\n\\n /**\\n * @dev See {IERC721-balanceOf}.\\n */\\n function balanceOf(address owner) public view virtual override returns (uint256) {\\n require(owner != address(0), \\\"ERC721: address zero is not a valid owner\\\");\\n return _balances[owner];\\n }\\n\\n /**\\n * @dev See {IERC721-ownerOf}.\\n */\\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\\n address owner = _owners[tokenId];\\n require(owner != address(0), \\\"ERC721: invalid token ID\\\");\\n return owner;\\n }\\n\\n /**\\n * @dev See {IERC721Metadata-name}.\\n */\\n function name() public view virtual override returns (string memory) {\\n return _name;\\n }\\n\\n /**\\n * @dev See {IERC721Metadata-symbol}.\\n */\\n function symbol() public view virtual override returns (string memory) {\\n return _symbol;\\n }\\n\\n /**\\n * @dev See {IERC721Metadata-tokenURI}.\\n */\\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\\n _requireMinted(tokenId);\\n\\n string memory baseURI = _baseURI();\\n return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \\\"\\\";\\n }\\n\\n /**\\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\\n * by default, can be overridden in child contracts.\\n */\\n function _baseURI() internal view virtual returns (string memory) {\\n return \\\"\\\";\\n }\\n\\n /**\\n * @dev See {IERC721-approve}.\\n */\\n function approve(address to, uint256 tokenId) public virtual override {\\n address owner = ERC721.ownerOf(tokenId);\\n require(to != owner, \\\"ERC721: approval to current owner\\\");\\n\\n require(\\n _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\\n \\\"ERC721: approve caller is not token owner nor approved for all\\\"\\n );\\n\\n _approve(to, tokenId);\\n }\\n\\n /**\\n * @dev See {IERC721-getApproved}.\\n */\\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\\n _requireMinted(tokenId);\\n\\n return _tokenApprovals[tokenId];\\n }\\n\\n /**\\n * @dev See {IERC721-setApprovalForAll}.\\n */\\n function setApprovalForAll(address operator, bool approved) public virtual override {\\n _setApprovalForAll(_msgSender(), operator, approved);\\n }\\n\\n /**\\n * @dev See {IERC721-isApprovedForAll}.\\n */\\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\\n return _operatorApprovals[owner][operator];\\n }\\n\\n /**\\n * @dev See {IERC721-transferFrom}.\\n */\\n function transferFrom(\\n address from,\\n address to,\\n uint256 tokenId\\n ) public virtual override {\\n //solhint-disable-next-line max-line-length\\n require(_isApprovedOrOwner(_msgSender(), tokenId), \\\"ERC721: caller is not token owner nor approved\\\");\\n\\n _transfer(from, to, tokenId);\\n }\\n\\n /**\\n * @dev See {IERC721-safeTransferFrom}.\\n */\\n function safeTransferFrom(\\n address from,\\n address to,\\n uint256 tokenId\\n ) public virtual override {\\n safeTransferFrom(from, to, tokenId, \\\"\\\");\\n }\\n\\n /**\\n * @dev See {IERC721-safeTransferFrom}.\\n */\\n function safeTransferFrom(\\n address from,\\n address to,\\n uint256 tokenId,\\n bytes memory data\\n ) public virtual override {\\n require(_isApprovedOrOwner(_msgSender(), tokenId), \\\"ERC721: caller is not token owner nor approved\\\");\\n _safeTransfer(from, to, tokenId, data);\\n }\\n\\n /**\\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\\n *\\n * `data` is additional data, it has no specified format and it is sent in call to `to`.\\n *\\n * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\\n * implement alternative mechanisms to perform token transfer, such as signature-based.\\n *\\n * Requirements:\\n *\\n * - `from` cannot be the zero address.\\n * - `to` cannot be the zero address.\\n * - `tokenId` token must exist and be owned by `from`.\\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n *\\n * Emits a {Transfer} event.\\n */\\n function _safeTransfer(\\n address from,\\n address to,\\n uint256 tokenId,\\n bytes memory data\\n ) internal virtual {\\n _transfer(from, to, tokenId);\\n require(_checkOnERC721Received(from, to, tokenId, data), \\\"ERC721: transfer to non ERC721Receiver implementer\\\");\\n }\\n\\n /**\\n * @dev Returns whether `tokenId` exists.\\n *\\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\\n *\\n * Tokens start existing when they are minted (`_mint`),\\n * and stop existing when they are burned (`_burn`).\\n */\\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\\n return _owners[tokenId] != address(0);\\n }\\n\\n /**\\n * @dev Returns whether `spender` is allowed to manage `tokenId`.\\n *\\n * Requirements:\\n *\\n * - `tokenId` must exist.\\n */\\n function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\\n address owner = ERC721.ownerOf(tokenId);\\n return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\\n }\\n\\n /**\\n * @dev Safely mints `tokenId` and transfers it to `to`.\\n *\\n * Requirements:\\n *\\n * - `tokenId` must not exist.\\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n *\\n * Emits a {Transfer} event.\\n */\\n function _safeMint(address to, uint256 tokenId) internal virtual {\\n _safeMint(to, tokenId, \\\"\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\\n * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\\n */\\n function _safeMint(\\n address to,\\n uint256 tokenId,\\n bytes memory data\\n ) internal virtual {\\n _mint(to, tokenId);\\n require(\\n _checkOnERC721Received(address(0), to, tokenId, data),\\n \\\"ERC721: transfer to non ERC721Receiver implementer\\\"\\n );\\n }\\n\\n /**\\n * @dev Mints `tokenId` and transfers it to `to`.\\n *\\n * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\\n *\\n * Requirements:\\n *\\n * - `tokenId` must not exist.\\n * - `to` cannot be the zero address.\\n *\\n * Emits a {Transfer} event.\\n */\\n function _mint(address to, uint256 tokenId) internal virtual {\\n require(to != address(0), \\\"ERC721: mint to the zero address\\\");\\n require(!_exists(tokenId), \\\"ERC721: token already minted\\\");\\n\\n _beforeTokenTransfer(address(0), to, tokenId);\\n\\n _balances[to] += 1;\\n _owners[tokenId] = to;\\n\\n emit Transfer(address(0), to, tokenId);\\n\\n _afterTokenTransfer(address(0), to, tokenId);\\n }\\n\\n /**\\n * @dev Destroys `tokenId`.\\n * The approval is cleared when the token is burned.\\n *\\n * Requirements:\\n *\\n * - `tokenId` must exist.\\n *\\n * Emits a {Transfer} event.\\n */\\n function _burn(uint256 tokenId) internal virtual {\\n address owner = ERC721.ownerOf(tokenId);\\n\\n _beforeTokenTransfer(owner, address(0), tokenId);\\n\\n // Clear approvals\\n _approve(address(0), tokenId);\\n\\n _balances[owner] -= 1;\\n delete _owners[tokenId];\\n\\n emit Transfer(owner, address(0), tokenId);\\n\\n _afterTokenTransfer(owner, address(0), tokenId);\\n }\\n\\n /**\\n * @dev Transfers `tokenId` from `from` to `to`.\\n * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\\n *\\n * Requirements:\\n *\\n * - `to` cannot be the zero address.\\n * - `tokenId` token must be owned by `from`.\\n *\\n * Emits a {Transfer} event.\\n */\\n function _transfer(\\n address from,\\n address to,\\n uint256 tokenId\\n ) internal virtual {\\n require(ERC721.ownerOf(tokenId) == from, \\\"ERC721: transfer from incorrect owner\\\");\\n require(to != address(0), \\\"ERC721: transfer to the zero address\\\");\\n\\n _beforeTokenTransfer(from, to, tokenId);\\n\\n // Clear approvals from the previous owner\\n _approve(address(0), tokenId);\\n\\n _balances[from] -= 1;\\n _balances[to] += 1;\\n _owners[tokenId] = to;\\n\\n emit Transfer(from, to, tokenId);\\n\\n _afterTokenTransfer(from, to, tokenId);\\n }\\n\\n /**\\n * @dev Approve `to` to operate on `tokenId`\\n *\\n * Emits an {Approval} event.\\n */\\n function _approve(address to, uint256 tokenId) internal virtual {\\n _tokenApprovals[tokenId] = to;\\n emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\\n }\\n\\n /**\\n * @dev Approve `operator` to operate on all of `owner` tokens\\n *\\n * Emits an {ApprovalForAll} event.\\n */\\n function _setApprovalForAll(\\n address owner,\\n address operator,\\n bool approved\\n ) internal virtual {\\n require(owner != operator, \\\"ERC721: approve to caller\\\");\\n _operatorApprovals[owner][operator] = approved;\\n emit ApprovalForAll(owner, operator, approved);\\n }\\n\\n /**\\n * @dev Reverts if the `tokenId` has not been minted yet.\\n */\\n function _requireMinted(uint256 tokenId) internal view virtual {\\n require(_exists(tokenId), \\\"ERC721: invalid token ID\\\");\\n }\\n\\n /**\\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\\n * The call is not executed if the target address is not a contract.\\n *\\n * @param from address representing the previous owner of the given token ID\\n * @param to target address that will receive the tokens\\n * @param tokenId uint256 ID of the token to be transferred\\n * @param data bytes optional data to send along with the call\\n * @return bool whether the call correctly returned the expected magic value\\n */\\n function _checkOnERC721Received(\\n address from,\\n address to,\\n uint256 tokenId,\\n bytes memory data\\n ) private returns (bool) {\\n if (to.isContract()) {\\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\\n return retval == IERC721Receiver.onERC721Received.selector;\\n } catch (bytes memory reason) {\\n if (reason.length == 0) {\\n revert(\\\"ERC721: transfer to non ERC721Receiver implementer\\\");\\n } else {\\n /// @solidity memory-safe-assembly\\n assembly {\\n revert(add(32, reason), mload(reason))\\n }\\n }\\n }\\n } else {\\n return true;\\n }\\n }\\n\\n /**\\n * @dev Hook that is called before any token transfer. This includes minting\\n * and burning.\\n *\\n * Calling conditions:\\n *\\n * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be\\n * transferred to `to`.\\n * - When `from` is zero, `tokenId` will be minted for `to`.\\n * - When `to` is zero, ``from``'s `tokenId` will be burned.\\n * - `from` and `to` are never both zero.\\n *\\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\\n */\\n function _beforeTokenTransfer(\\n address from,\\n address to,\\n uint256 tokenId\\n ) internal virtual {}\\n\\n /**\\n * @dev Hook that is called after any transfer of tokens. This includes\\n * minting and burning.\\n *\\n * Calling conditions:\\n *\\n * - when `from` and `to` are both non-zero.\\n * - `from` and `to` are never both zero.\\n *\\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\\n */\\n function _afterTokenTransfer(\\n address from,\\n address to,\\n uint256 tokenId\\n ) internal virtual {}\\n}\\n\",\"keccak256\":\"0x0b606994df12f0ce35f6d2f6dcdde7e55e6899cdef7e00f180980caa81e3844e\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../../utils/introspection/IERC165.sol\\\";\\n\\n/**\\n * @dev Required interface of an ERC721 compliant contract.\\n */\\ninterface IERC721 is IERC165 {\\n /**\\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\\n\\n /**\\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\\n */\\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\\n\\n /**\\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\\n */\\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\\n\\n /**\\n * @dev Returns the number of tokens in ``owner``'s account.\\n */\\n function balanceOf(address owner) external view returns (uint256 balance);\\n\\n /**\\n * @dev Returns the owner of the `tokenId` token.\\n *\\n * Requirements:\\n *\\n * - `tokenId` must exist.\\n */\\n function ownerOf(uint256 tokenId) external view returns (address owner);\\n\\n /**\\n * @dev Safely transfers `tokenId` token from `from` to `to`.\\n *\\n * Requirements:\\n *\\n * - `from` cannot be the zero address.\\n * - `to` cannot be the zero address.\\n * - `tokenId` token must exist and be owned by `from`.\\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n *\\n * Emits a {Transfer} event.\\n */\\n function safeTransferFrom(\\n address from,\\n address to,\\n uint256 tokenId,\\n bytes calldata data\\n ) external;\\n\\n /**\\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\\n *\\n * Requirements:\\n *\\n * - `from` cannot be the zero address.\\n * - `to` cannot be the zero address.\\n * - `tokenId` token must exist and be owned by `from`.\\n * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n *\\n * Emits a {Transfer} event.\\n */\\n function safeTransferFrom(\\n address from,\\n address to,\\n uint256 tokenId\\n ) external;\\n\\n /**\\n * @dev Transfers `tokenId` token from `from` to `to`.\\n *\\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\\n *\\n * Requirements:\\n *\\n * - `from` cannot be the zero address.\\n * - `to` cannot be the zero address.\\n * - `tokenId` token must be owned by `from`.\\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(\\n address from,\\n address to,\\n uint256 tokenId\\n ) external;\\n\\n /**\\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\\n * The approval is cleared when the token is transferred.\\n *\\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\\n *\\n * Requirements:\\n *\\n * - The caller must own the token or be an approved operator.\\n * - `tokenId` must exist.\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address to, uint256 tokenId) external;\\n\\n /**\\n * @dev Approve or remove `operator` as an operator for the caller.\\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\\n *\\n * Requirements:\\n *\\n * - The `operator` cannot be the caller.\\n *\\n * Emits an {ApprovalForAll} event.\\n */\\n function setApprovalForAll(address operator, bool _approved) external;\\n\\n /**\\n * @dev Returns the account approved for `tokenId` token.\\n *\\n * Requirements:\\n *\\n * - `tokenId` must exist.\\n */\\n function getApproved(uint256 tokenId) external view returns (address operator);\\n\\n /**\\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\\n *\\n * See {setApprovalForAll}\\n */\\n function isApprovedForAll(address owner, address operator) external view returns (bool);\\n}\\n\",\"keccak256\":\"0xed6a749c5373af398105ce6ee3ac4763aa450ea7285d268c85d9eeca809cdb1f\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @title ERC721 token receiver interface\\n * @dev Interface for any contract that wants to support safeTransfers\\n * from ERC721 asset contracts.\\n */\\ninterface IERC721Receiver {\\n /**\\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\\n * by `operator` from `from`, this function is called.\\n *\\n * It must return its Solidity selector to confirm the token transfer.\\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\\n *\\n * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\\n */\\n function onERC721Received(\\n address operator,\\n address from,\\n uint256 tokenId,\\n bytes calldata data\\n ) external returns (bytes4);\\n}\\n\",\"keccak256\":\"0xa82b58eca1ee256be466e536706850163d2ec7821945abd6b4778cfb3bee37da\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC721.sol\\\";\\n\\n/**\\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\\n * @dev See https://eips.ethereum.org/EIPS/eip-721\\n */\\ninterface IERC721Metadata is IERC721 {\\n /**\\n * @dev Returns the token collection name.\\n */\\n function name() external view returns (string memory);\\n\\n /**\\n * @dev Returns the token collection symbol.\\n */\\n function symbol() external view returns (string memory);\\n\\n /**\\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\\n */\\n function tokenURI(uint256 tokenId) external view returns (string memory);\\n}\\n\",\"keccak256\":\"0x75b829ff2f26c14355d1cba20e16fe7b29ca58eb5fef665ede48bc0f9c6c74b9\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Address.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\\n\\npragma solidity ^0.8.1;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary Address {\\n /**\\n * @dev Returns true if `account` is a contract.\\n *\\n * [IMPORTANT]\\n * ====\\n * It is unsafe to assume that an address for which this function returns\\n * false is an externally-owned account (EOA) and not a contract.\\n *\\n * Among others, `isContract` will return false for the following\\n * types of addresses:\\n *\\n * - an externally-owned account\\n * - a contract in construction\\n * - an address where a contract will be created\\n * - an address where a contract lived, but was destroyed\\n * ====\\n *\\n * [IMPORTANT]\\n * ====\\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\\n *\\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\\n * constructor.\\n * ====\\n */\\n function isContract(address account) internal view returns (bool) {\\n // This method relies on extcodesize/address.code.length, which returns 0\\n // for contracts in construction, since the code is only stored at the end\\n // of the constructor execution.\\n\\n return account.code.length > 0;\\n }\\n\\n /**\\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n * `recipient`, forwarding all available gas and reverting on errors.\\n *\\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n * imposed by `transfer`, making them unable to receive funds via\\n * `transfer`. {sendValue} removes this limitation.\\n *\\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n *\\n * IMPORTANT: because control is transferred to `recipient`, care must be\\n * taken to not create reentrancy vulnerabilities. Consider using\\n * {ReentrancyGuard} or the\\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n */\\n function sendValue(address payable recipient, uint256 amount) internal {\\n require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n (bool success, ) = recipient.call{value: amount}(\\\"\\\");\\n require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n }\\n\\n /**\\n * @dev Performs a Solidity function call using a low level `call`. A\\n * plain `call` is an unsafe replacement for a function call: use this\\n * function instead.\\n *\\n * If `target` reverts with a revert reason, it is bubbled up by this\\n * function (like regular Solidity function calls).\\n *\\n * Returns the raw returned data. To convert to the expected return value,\\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n *\\n * Requirements:\\n *\\n * - `target` must be a contract.\\n * - calling `target` with `data` must not revert.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n * `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, 0, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but also transferring `value` wei to `target`.\\n *\\n * Requirements:\\n *\\n * - the calling contract must have an ETH balance of at least `value`.\\n * - the called Solidity function must be `payable`.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n * with `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.call{value: value}(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal view returns (bytes memory) {\\n require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.staticcall(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a delegate call.\\n *\\n * _Available since v3.4._\\n */\\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionDelegateCall(target, data, \\\"Address: low-level delegate call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a delegate call.\\n *\\n * _Available since v3.4._\\n */\\n function functionDelegateCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n require(isContract(target), \\\"Address: delegate call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.delegatecall(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\\n * revert reason using the provided one.\\n *\\n * _Available since v4.3._\\n */\\n function verifyCallResult(\\n bool success,\\n bytes memory returndata,\\n string memory errorMessage\\n ) internal pure returns (bytes memory) {\\n if (success) {\\n return returndata;\\n } else {\\n // Look for revert reason and bubble it up if present\\n if (returndata.length > 0) {\\n // The easiest way to bubble the revert reason is using memory via assembly\\n /// @solidity memory-safe-assembly\\n assembly {\\n let returndata_size := mload(returndata)\\n revert(add(32, returndata), returndata_size)\\n }\\n } else {\\n revert(errorMessage);\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0xd6153ce99bcdcce22b124f755e72553295be6abcd63804cfdffceb188b8bef10\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Context.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract Context {\\n function _msgSender() internal view virtual returns (address) {\\n return msg.sender;\\n }\\n\\n function _msgData() internal view virtual returns (bytes calldata) {\\n return msg.data;\\n }\\n}\\n\",\"keccak256\":\"0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Strings.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev String operations.\\n */\\nlibrary Strings {\\n bytes16 private constant _HEX_SYMBOLS = \\\"0123456789abcdef\\\";\\n uint8 private constant _ADDRESS_LENGTH = 20;\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\\n */\\n function toString(uint256 value) internal pure returns (string memory) {\\n // Inspired by OraclizeAPI's implementation - MIT licence\\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\\n\\n if (value == 0) {\\n return \\\"0\\\";\\n }\\n uint256 temp = value;\\n uint256 digits;\\n while (temp != 0) {\\n digits++;\\n temp /= 10;\\n }\\n bytes memory buffer = new bytes(digits);\\n while (value != 0) {\\n digits -= 1;\\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\\n value /= 10;\\n }\\n return string(buffer);\\n }\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\\n */\\n function toHexString(uint256 value) internal pure returns (string memory) {\\n if (value == 0) {\\n return \\\"0x00\\\";\\n }\\n uint256 temp = value;\\n uint256 length = 0;\\n while (temp != 0) {\\n length++;\\n temp >>= 8;\\n }\\n return toHexString(value, length);\\n }\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\\n */\\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\\n bytes memory buffer = new bytes(2 * length + 2);\\n buffer[0] = \\\"0\\\";\\n buffer[1] = \\\"x\\\";\\n for (uint256 i = 2 * length + 1; i > 1; --i) {\\n buffer[i] =