false
false

Contract Address Details

0xce4bf732f53a76c463ae8822be858017b02779c8

Contract Name
ERC721LazyMintTransferProxy
Creator
0x256eff–71d85b at 0x46d288–44c20f
Balance
0 Xai ($0.00 USD)
Tokens
Fetching tokens...
Transactions
2 Transactions
Transfers
0 Transfers
Gas Used
136,770
Last Balance Update
67043709
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
ERC721LazyMintTransferProxy




Optimization enabled
true
Compiler version
v0.7.6+commit.7338295f




Optimization runs
200
EVM Version
istanbul




Verified at
2024-02-09T13:55:00.576512Z

@rarible/transfer-proxy/contracts/lazy-mint/erc721/ERC721LazyMintTransferProxy.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.9 <0.8.0;
pragma abicoder v2;
import "@rarible/exchange-interfaces/contracts/ITransferProxy.sol";
import "@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol";
import "@rarible/lazy-mint/contracts/erc-721/IERC721LazyMint.sol";
import "@rarible/role-operator/contracts/OperatorRole.sol";
contract ERC721LazyMintTransferProxy is OperatorRole, ITransferProxy {
function transfer(LibAsset.Asset memory asset, address from, address to) override onlyOperator external {
require(asset.value == 1, "erc721 value error");
(address token, LibERC721LazyMint.Mint721Data memory data) = abi.decode(asset.assetType.data, (address, LibERC721LazyMint.Mint721Data));
IERC721LazyMint(token).transferFromOrMint(data, from, to);
}
}
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@rarible/role-operator/contracts/OperatorRole.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.9 <0.8.0;
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
contract OperatorRole is OwnableUpgradeable {
mapping (address => bool) operators;
function __OperatorRole_init() external initializer {
__Context_init_unchained();
__Ownable_init_unchained();
}
function addOperator(address operator) external onlyOwner {
operators[operator] = true;
}
function removeOperator(address operator) external onlyOwner {
operators[operator] = false;
}
modifier onlyOperator() {
require(operators[_msgSender()], "OperatorRole: caller is not the operator");
_;
}
}
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@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
import "../utils/ContextUpgradeable.sol";
import "../proxy/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 {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
 
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@openzeppelin/contracts-upgradeable/introspection/IERC165Upgradeable.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <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);
}
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@openzeppelin/contracts-upgradeable/proxy/Initializable.sol

// SPDX-License-Identifier: MIT
// solhint-disable-next-line compiler-version
pragma solidity >=0.4.24 <0.8.0;
import "../utils/AddressUpgradeable.sol";
/**
* @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 {UpgradeableProxy-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.
*/
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 || _isConstructor() || !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
 
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@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
import "../../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
 
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@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <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;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
 
 
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@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
import "../proxy/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 GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal initializer {
__Context_init_unchained();
}
function __Context_init_unchained() internal initializer {
}
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
uint256[50] private __gap;
}
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@rarible/exchange-interfaces/contracts/ITransferProxy.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.9 <0.8.0;
pragma abicoder v2;
import "@rarible/lib-asset/contracts/LibAsset.sol";
interface ITransferProxy {
function transfer(LibAsset.Asset calldata asset, address from, address to) external;
}
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@rarible/lazy-mint/contracts/erc-721/IERC721LazyMint.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
pragma abicoder v2;
import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
import "./LibERC721LazyMint.sol";
import "@rarible/lib-part/contracts/LibPart.sol";
interface IERC721LazyMint is IERC721Upgradeable {
event Creators(
uint256 tokenId,
LibPart.Part[] creators
);
function mintAndTransfer(
LibERC721LazyMint.Mint721Data memory data,
address to
) external;
function transferFromOrMint(
LibERC721LazyMint.Mint721Data memory data,
address from,
address to
) external;
}
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@rarible/lazy-mint/contracts/erc-721/LibERC721LazyMint.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
import "@rarible/lib-part/contracts/LibPart.sol";
library LibERC721LazyMint {
bytes4 constant public ERC721_LAZY_ASSET_CLASS = bytes4(keccak256("ERC721_LAZY"));
bytes4 constant _INTERFACE_ID_MINT_AND_TRANSFER = 0x8486f69f;
struct Mint721Data {
uint tokenId;
string tokenURI;
LibPart.Part[] creators;
LibPart.Part[] royalties;
bytes[] signatures;
}
bytes32 public constant MINT_AND_TRANSFER_TYPEHASH = keccak256("Mint721(uint256 tokenId,string tokenURI,Part[] creators,Part[] royalties)Part(address account,uint96 value)");
function hash(Mint721Data memory data) internal pure returns (bytes32) {
bytes32[] memory royaltiesBytes = new bytes32[](data.royalties.length);
for (uint i = 0; i < data.royalties.length; ++i) {
royaltiesBytes[i] = LibPart.hash(data.royalties[i]);
}
bytes32[] memory creatorsBytes = new bytes32[](data.creators.length);
for (uint i = 0; i < data.creators.length; ++i) {
creatorsBytes[i] = LibPart.hash(data.creators[i]);
}
return keccak256(abi.encode(
MINT_AND_TRANSFER_TYPEHASH,
data.tokenId,
keccak256(bytes(data.tokenURI)),
keccak256(abi.encodePacked(creatorsBytes)),
keccak256(abi.encodePacked(royaltiesBytes))
));
}
}
 
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@rarible/lib-asset/contracts/LibAsset.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.7.6;
library LibAsset {
bytes4 constant public ETH_ASSET_CLASS = bytes4(keccak256("ETH"));
bytes4 constant public ERC20_ASSET_CLASS = bytes4(keccak256("ERC20"));
bytes4 constant public ERC721_ASSET_CLASS = bytes4(keccak256("ERC721"));
bytes4 constant public ERC1155_ASSET_CLASS = bytes4(keccak256("ERC1155"));
bytes4 constant public COLLECTION = bytes4(keccak256("COLLECTION"));
bytes4 constant public CRYPTO_PUNKS = bytes4(keccak256("CRYPTO_PUNKS"));
bytes32 constant ASSET_TYPE_TYPEHASH = keccak256(
"AssetType(bytes4 assetClass,bytes data)"
);
bytes32 constant ASSET_TYPEHASH = keccak256(
"Asset(AssetType assetType,uint256 value)AssetType(bytes4 assetClass,bytes data)"
);
struct AssetType {
bytes4 assetClass;
bytes data;
}
struct Asset {
AssetType assetType;
uint value;
}
function hash(AssetType memory assetType) internal pure returns (bytes32) {
return keccak256(abi.encode(
ASSET_TYPE_TYPEHASH,
assetType.assetClass,
keccak256(assetType.data)
));
}
function hash(Asset memory asset) internal pure returns (bytes32) {
return keccak256(abi.encode(
ASSET_TYPEHASH,
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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@rarible/lib-part/contracts/LibPart.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
library LibPart {
bytes32 public constant TYPE_HASH = keccak256("Part(address account,uint96 value)");
struct Part {
address payable account;
uint96 value;
}
function hash(Part memory part) internal pure returns (bytes32) {
return keccak256(abi.encode(TYPE_HASH, part.account, part.value));
}
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compiler Settings

{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers"]}},"optimizer":{"runs":200,"enabled":true},"metadata":{"useLiteralContent":true,"bytecodeHash":"ipfs"},"libraries":{},"evmVersion":"istanbul"}
              

Contract ABI

[{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"__OperatorRole_init","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"addOperator","inputs":[{"type":"address","name":"operator","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"removeOperator","inputs":[{"type":"address","name":"operator","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transfer","inputs":[{"type":"tuple","name":"asset","internalType":"struct LibAsset.Asset","components":[{"type":"tuple","name":"assetType","internalType":"struct LibAsset.AssetType","components":[{"type":"bytes4","name":"assetClass","internalType":"bytes4"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"address","name":"from","internalType":"address"},{"type":"address","name":"to","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]}]
              

Contract Creation Code

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Deployed ByteCode

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