ERC-721
Overview
Max Total Supply
2,299 PCAT
Holders
74
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
0 PCATLoading...
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Contract Name:
PlutocatsToken
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0 /// @title Plutocats NFT pragma solidity >=0.8.0; import {ERC721} from "nouns-monorepo/packages/nouns-contracts/contracts/base/ERC721.sol"; import {IBlast} from "./interfaces/IBlast.sol"; import {ERC721Checkpointable} from "nouns-monorepo/packages/nouns-contracts/contracts/base/ERC721Checkpointable.sol"; import {IPlutocatsDescriptorMinimal} from "./interfaces/IPlutocatsDescriptorMinimal.sol"; import {IPlutocatsSeeder} from "./interfaces/IPlutocatsSeeder.sol"; import {IPlutocatsToken} from "./interfaces/IPlutocatsToken.sol"; import {LinearVRGDA} from "VRGDAs/LinearVRGDA.sol"; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol"; import {toDaysWadUnsafe} from "solmate/utils/SignedWadMath.sol"; contract PlutocatsToken is IPlutocatsToken, ERC721Checkpointable, LinearVRGDA, Ownable { using Address for address payable; /// Timestamp for when minting will start. uint256 public immutable MINT_START; /// The internal tokenId tracker. uint256 private _currentCatId; /// The address of the reserve. address public reserve; /// The Plutocats token URI descriptor. IPlutocatsDescriptorMinimal public descriptor; /// The Plutocats token seeder. IPlutocatsSeeder public seeder; /// Plutocat seeds. mapping(uint256 => IPlutocatsSeeder.Seed) public seeds; /// Whether to turn off dynamic book value reserve price for mints. bool public enableReservePrice; /// a mapping that records contributions to the reserve. mapping(uint256 => Contribution) internal contributions; // IPFS content hash of contract-level metadata. string private _contractURIHash = "QmYK3uptbXYQJX26TKUeYDBYHDhy7kPbYPmBHcZRaEqh1g"; /// The address of the pre-deployed Blast contract. address public constant BLAST_PREDEPLOY_ADDRESS = 0x4300000000000000000000000000000000000002; IBlast public blast; /// MEOWMEOWMEOW constructor( uint256 _mintStart, address _reserve, address _descriptor, address _seeder, bool _enableReservePrice, address _blast ) ERC721("Plutocats", "PCAT") LinearVRGDA( 0.1e18, // Target price 0.07e18, // Price decay percent 10e18 // Per time unit ) { require(_reserve != address(0), "PlutocatsToken: reserve address cannot be 0"); require(_descriptor != address(0), "PlutocatsToken: descriptor address cannot be 0"); require(_seeder != address(0), "PlutocatsToken: seeder address cannot be 0"); MINT_START = _mintStart; reserve = _reserve; descriptor = IPlutocatsDescriptorMinimal(_descriptor); seeder = IPlutocatsSeeder(_seeder); enableReservePrice = _enableReservePrice; if (_blast != address(0)) { blast = IBlast(_blast); } else { blast = IBlast(BLAST_PREDEPLOY_ADDRESS); } // capture blast gas for future use blast.configureClaimableGas(); } /// IPFS uri for contract-level metadata. function contractURI() public view returns (string memory) { return string(abi.encodePacked("ipfs://", _contractURIHash)); } /// Set the contract uri hash. function setContractURIHash(string memory newContractURIHash) external onlyOwner { _contractURIHash = newContractURIHash; } /// Mint a Plutocat to the caller. function mint() public payable override returns (uint256) { // will revert prior to mint start time, causing an underflow uint256 currentPrice = getPrice(); if (currentPrice > msg.value) { revert InsufficientFundsProvided(); } // send ETH to the reserve payable(reserve).sendValue(msg.value); emit ETHSent(reserve, msg.value); return mintToInternal(msg.sender, _currentCatId++); } /// Get the current price of the next Plutocat to be minted. Enforces a minimum price /// of reserve book value. (reserveBalance / adjustedTotalSupply). function getPrice() public view returns (uint256) { // checked math will cause underflow to prevent mints before start time uint256 timeSinceStart = block.timestamp - MINT_START; uint256 vrgdaPrice = getVRGDAPrice(toDaysWadUnsafe(timeSinceStart), _currentCatId); uint256 minPrice = vrgdaPrice; uint256 adjTotalSupply = adjustedTotalSupply(); /// dynamic reserve price based off book value if (enableReservePrice && adjTotalSupply > 0) { minPrice = reserve.balance / adjTotalSupply; } // enforce minimum price on membership if (vrgdaPrice < minPrice) { return minPrice; } return vrgdaPrice; } /// Mint a Plutocat with id to the provided address. function mintToInternal(address _to, uint256 _catId) internal returns (uint256) { IPlutocatsSeeder.Seed memory seed = seeds[_catId] = seeder.generateSeed(_catId, descriptor); _mint(address(0), _to, _catId); contributions[_catId] = Contribution({amount: msg.value, joinTime: block.timestamp}); emit PlutocatPurchased(_catId, msg.sender, msg.value, seed); return _catId; } /// A distinct URI for the given token. function tokenURI(uint256 _tokenId) public view override returns (string memory) { if (!_exists(_tokenId)) { revert TokenDoesNotExist(); } return descriptor.tokenURI(_tokenId, seeds[_tokenId]); } /// Similar to tokenURI but always returns a base64 encoded data URI. function dataURI(uint256 _tokenId) public view override returns (string memory) { if (!_exists(_tokenId)) { revert TokenDoesNotExist(); } return descriptor.dataURI(_tokenId, seeds[_tokenId]); } /// Get the adjusted total supply of the contract. /// Does not include cats that have quit the club or have been burned. function adjustedTotalSupply() public view returns (uint256) { return totalSupply() - balanceOf(address(reserve)); } /// Get total contributions of a member to the reserve. function contributionsOf(uint256 _tokenId) external view returns (Contribution memory) { return contributions[_tokenId]; } /// Set the Plutocats token URI descriptor. function setDescriptor(address _descriptor) external onlyOwner { descriptor = IPlutocatsDescriptorMinimal(_descriptor); emit DescriptorUpdated(_descriptor); } /// Set the Plutocats token seeder. function setSeeder(address _seeder) external onlyOwner { seeder = IPlutocatsSeeder(_seeder); emit SeederUpdated(_seeder); } /// Set whether dynamic reserve price is enabled on mints. function setReservePrice(bool _enableReservePrice) external onlyOwner { enableReservePrice = _enableReservePrice; emit ReservePriceSet(_enableReservePrice); } /// Sets the blast governor for this contract. If phase 2 is implemented, the /// DAO will be able to claim the gas of this contract for use. Only callable /// if this contract is still the governor. function setGovernor(address _governor) external onlyOwner { blast.configureGovernor(_governor); emit SetBlastGovernor(_governor); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { 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) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies 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 * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant alphabet = "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] = alphabet[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT /// @title ERC721 Token Implementation /********************************* * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░██░░░████░░██░░░████░░░ * * ░░██████░░░████████░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * *********************************/ // LICENSE // ERC721.sol modifies OpenZeppelin's ERC721.sol: // https://github.com/OpenZeppelin/openzeppelin-contracts/blob/6618f9f18424ade44116d0221719f4c93be6a078/contracts/token/ERC721/ERC721.sol // // ERC721.sol source code copyright OpenZeppelin licensed under the MIT License. // With modifications by Nounders DAO. // // // MODIFICATIONS: // `_safeMint` and `_mint` contain an additional `creator` argument and // emit two `Transfer` logs, rather than one. The first log displays the // transfer (mint) from `address(0)` to the `creator`. The second displays the // transfer from the `creator` to the `to` address. This enables correct // attribution on various NFT marketplaces. pragma solidity ^0.8.6; import '@openzeppelin/contracts/token/ERC721/IERC721.sol'; import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol'; import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol'; import '@openzeppelin/contracts/utils/Address.sol'; import '@openzeppelin/contracts/utils/Context.sol'; import '@openzeppelin/contracts/utils/Strings.sol'; import '@openzeppelin/contracts/utils/introspection/ERC165.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 ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings 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. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || 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 = ERC721.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 { require(operator != _msgSender(), 'ERC721: approve to caller'); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view 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 = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId`, transfers it to `to`, and emits two log events - * 1. Credits the `minter` with the mint. * 2. Shows transfer from the `minter` 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 creator, address to, uint256 tokenId ) internal virtual { _safeMint(creator, 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 creator, address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(creator, to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), 'ERC721: transfer to non ERC721Receiver implementer' ); } /** * @dev Mints `tokenId`, transfers it to `to`, and emits two log events - * 1. Credits the `creator` with the mint. * 2. Shows transfer from the `creator` 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 creator, 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), creator, tokenId); emit Transfer(creator, 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 = ERC721.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(ERC721.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(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert('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 {} }
// SPDX-License-Identifier: BSD-3-Clause /// @title Vote checkpointing for an ERC-721 token /********************************* * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░██░░░████░░██░░░████░░░ * * ░░██████░░░████████░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * *********************************/ // LICENSE // ERC721Checkpointable.sol uses and modifies part of Compound Lab's Comp.sol: // https://github.com/compound-finance/compound-protocol/blob/ae4388e780a8d596d97619d9704a931a2752c2bc/contracts/Governance/Comp.sol // // Comp.sol source code Copyright 2020 Compound Labs, Inc. licensed under the BSD-3-Clause license. // With modifications by Nounders DAO. // // Additional conditions of BSD-3-Clause can be found here: https://opensource.org/licenses/BSD-3-Clause // // MODIFICATIONS // Checkpointing logic from Comp.sol has been used with the following modifications: // - `delegates` is renamed to `_delegates` and is set to private // - `delegates` is a public function that uses the `_delegates` mapping look-up, but unlike // Comp.sol, returns the delegator's own address if there is no delegate. // This avoids the delegator needing to "delegate to self" with an additional transaction // - `_transferTokens()` is renamed `_beforeTokenTransfer()` and adapted to hook into OpenZeppelin's ERC721 hooks. pragma solidity ^0.8.6; import './ERC721Enumerable.sol'; abstract contract ERC721Checkpointable is ERC721Enumerable { /// @notice Defines decimals as per ERC-20 convention to make integrations with 3rd party governance platforms easier uint8 public constant decimals = 0; /// @notice A record of each accounts delegate mapping(address => address) private _delegates; /// @notice A checkpoint for marking number of votes from a given block struct Checkpoint { uint32 fromBlock; uint96 votes; } /// @notice A record of votes checkpoints for each account, by index mapping(address => mapping(uint32 => Checkpoint)) public checkpoints; /// @notice The number of checkpoints for each account mapping(address => uint32) public numCheckpoints; /// @notice The EIP-712 typehash for the contract's domain bytes32 public constant DOMAIN_TYPEHASH = keccak256('EIP712Domain(string name,uint256 chainId,address verifyingContract)'); /// @notice The EIP-712 typehash for the delegation struct used by the contract bytes32 public constant DELEGATION_TYPEHASH = keccak256('Delegation(address delegatee,uint256 nonce,uint256 expiry)'); /// @notice A record of states for signing / validating signatures mapping(address => uint256) public nonces; /// @notice An event thats emitted when an account changes its delegate event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /// @notice An event thats emitted when a delegate account's vote balance changes event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); /** * @notice The votes a delegator can delegate, which is the current balance of the delegator. * @dev Used when calling `_delegate()` */ function votesToDelegate(address delegator) public view returns (uint96) { return safe96(balanceOf(delegator), 'ERC721Checkpointable::votesToDelegate: amount exceeds 96 bits'); } /** * @notice Overrides the standard `Comp.sol` delegates mapping to return * the delegator's own address if they haven't delegated. * This avoids having to delegate to oneself. */ function delegates(address delegator) public view returns (address) { address current = _delegates[delegator]; return current == address(0) ? delegator : current; } /** * @notice Adapted from `_transferTokens()` in `Comp.sol` to update delegate votes. * @dev hooks into OpenZeppelin's `ERC721._transfer` */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal override { super._beforeTokenTransfer(from, to, tokenId); /// @notice Differs from `_transferTokens()` to use `delegates` override method to simulate auto-delegation _moveDelegates(delegates(from), delegates(to), 1); } /** * @notice Delegate votes from `msg.sender` to `delegatee` * @param delegatee The address to delegate votes to */ function delegate(address delegatee) public { if (delegatee == address(0)) delegatee = msg.sender; return _delegate(msg.sender, delegatee); } /** * @notice Delegates votes from signatory to `delegatee` * @param delegatee The address to delegate votes to * @param nonce The contract state required to match the signature * @param expiry The time at which to expire the signature * @param v The recovery byte of the signature * @param r Half of the ECDSA signature pair * @param s Half of the ECDSA signature pair */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) public { bytes32 domainSeparator = keccak256( abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name())), getChainId(), address(this)) ); bytes32 structHash = keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry)); bytes32 digest = keccak256(abi.encodePacked('\x19\x01', domainSeparator, structHash)); address signatory = ecrecover(digest, v, r, s); require(signatory != address(0), 'ERC721Checkpointable::delegateBySig: invalid signature'); require(nonce == nonces[signatory]++, 'ERC721Checkpointable::delegateBySig: invalid nonce'); require(block.timestamp <= expiry, 'ERC721Checkpointable::delegateBySig: signature expired'); return _delegate(signatory, delegatee); } /** * @notice Gets the current votes balance for `account` * @param account The address to get votes balance * @return The number of current votes for `account` */ function getCurrentVotes(address account) external view returns (uint96) { uint32 nCheckpoints = numCheckpoints[account]; return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0; } /** * @notice Determine the prior number of votes for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param blockNumber The block number to get the vote balance at * @return The number of votes the account had as of the given block */ function getPriorVotes(address account, uint256 blockNumber) public view returns (uint96) { require(blockNumber < block.number, 'ERC721Checkpointable::getPriorVotes: not yet determined'); uint32 nCheckpoints = numCheckpoints[account]; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) { return checkpoints[account][nCheckpoints - 1].votes; } // Next check implicit zero balance if (checkpoints[account][0].fromBlock > blockNumber) { return 0; } uint32 lower = 0; uint32 upper = nCheckpoints - 1; while (upper > lower) { uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow Checkpoint memory cp = checkpoints[account][center]; if (cp.fromBlock == blockNumber) { return cp.votes; } else if (cp.fromBlock < blockNumber) { lower = center; } else { upper = center - 1; } } return checkpoints[account][lower].votes; } function _delegate(address delegator, address delegatee) internal { /// @notice differs from `_delegate()` in `Comp.sol` to use `delegates` override method to simulate auto-delegation address currentDelegate = delegates(delegator); _delegates[delegator] = delegatee; emit DelegateChanged(delegator, currentDelegate, delegatee); uint96 amount = votesToDelegate(delegator); _moveDelegates(currentDelegate, delegatee, amount); } function _moveDelegates( address srcRep, address dstRep, uint96 amount ) internal { if (srcRep != dstRep && amount > 0) { if (srcRep != address(0)) { uint32 srcRepNum = numCheckpoints[srcRep]; uint96 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0; uint96 srcRepNew = sub96(srcRepOld, amount, 'ERC721Checkpointable::_moveDelegates: amount underflows'); _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew); } if (dstRep != address(0)) { uint32 dstRepNum = numCheckpoints[dstRep]; uint96 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0; uint96 dstRepNew = add96(dstRepOld, amount, 'ERC721Checkpointable::_moveDelegates: amount overflows'); _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew); } } } function _writeCheckpoint( address delegatee, uint32 nCheckpoints, uint96 oldVotes, uint96 newVotes ) internal { uint32 blockNumber = safe32( block.number, 'ERC721Checkpointable::_writeCheckpoint: block number exceeds 32 bits' ); if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) { checkpoints[delegatee][nCheckpoints - 1].votes = newVotes; } else { checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes); numCheckpoints[delegatee] = nCheckpoints + 1; } emit DelegateVotesChanged(delegatee, oldVotes, newVotes); } function safe32(uint256 n, string memory errorMessage) internal pure returns (uint32) { require(n < 2**32, errorMessage); return uint32(n); } function safe96(uint256 n, string memory errorMessage) internal pure returns (uint96) { require(n < 2**96, errorMessage); return uint96(n); } function add96( uint96 a, uint96 b, string memory errorMessage ) internal pure returns (uint96) { uint96 c = a + b; require(c >= a, errorMessage); return c; } function sub96( uint96 a, uint96 b, string memory errorMessage ) internal pure returns (uint96) { require(b <= a, errorMessage); return a - b; } function getChainId() internal view returns (uint256) { uint256 chainId; assembly { chainId := chainid() } return chainId; } }
// SPDX-License-Identifier: MIT /// @title ERC721 Enumerable Extension /********************************* * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░██░░░████░░██░░░████░░░ * * ░░██████░░░████████░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░██░░██░░░████░░██░░░████░░░ * * ░░░░░░█████████░░█████████░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * * ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ * *********************************/ // LICENSE // ERC721.sol modifies OpenZeppelin's ERC721Enumerable.sol: // https://github.com/OpenZeppelin/openzeppelin-contracts/blob/6618f9f18424ade44116d0221719f4c93be6a078/contracts/token/ERC721/extensions/ERC721Enumerable.sol // // ERC721Enumerable.sol source code copyright OpenZeppelin licensed under the MIT License. // With modifications by Nounders DAO. // // MODIFICATIONS: // Consumes modified `ERC721` contract. See notes in `ERC721.sol`. pragma solidity ^0.8.0; import './ERC721.sol'; import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.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 ERC721Enumerable is ERC721, IERC721Enumerable { // 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(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.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 < ERC721Enumerable.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 = ERC721.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 = ERC721.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(); } }
// SPDX-License-Identifier: MIT pragma solidity >=0.8.0; /// @notice Signed 18 decimal fixed point (wad) arithmetic library. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SignedWadMath.sol) /// @author Modified from Remco Bloemen (https://xn--2-umb.com/22/exp-ln/index.html) /// @dev Will not revert on overflow, only use where overflow is not possible. function toWadUnsafe(uint256 x) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Multiply x by 1e18. r := mul(x, 1000000000000000000) } } /// @dev Takes an integer amount of seconds and converts it to a wad amount of days. /// @dev Will not revert on overflow, only use where overflow is not possible. /// @dev Not meant for negative second amounts, it assumes x is positive. function toDaysWadUnsafe(uint256 x) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Multiply x by 1e18 and then divide it by 86400. r := div(mul(x, 1000000000000000000), 86400) } } /// @dev Takes a wad amount of days and converts it to an integer amount of seconds. /// @dev Will not revert on overflow, only use where overflow is not possible. /// @dev Not meant for negative day amounts, it assumes x is positive. function fromDaysWadUnsafe(int256 x) pure returns (uint256 r) { /// @solidity memory-safe-assembly assembly { // Multiply x by 86400 and then divide it by 1e18. r := div(mul(x, 86400), 1000000000000000000) } } /// @dev Will not revert on overflow, only use where overflow is not possible. function unsafeWadMul(int256 x, int256 y) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Multiply x by y and divide by 1e18. r := sdiv(mul(x, y), 1000000000000000000) } } /// @dev Will return 0 instead of reverting if y is zero and will /// not revert on overflow, only use where overflow is not possible. function unsafeWadDiv(int256 x, int256 y) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Multiply x by 1e18 and divide it by y. r := sdiv(mul(x, 1000000000000000000), y) } } function wadMul(int256 x, int256 y) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Store x * y in r for now. r := mul(x, y) // Combined overflow check (`x == 0 || (x * y) / x == y`) and edge case check // where x == -1 and y == type(int256).min, for y == -1 and x == min int256, // the second overflow check will catch this. // See: https://secure-contracts.com/learn_evm/arithmetic-checks.html#arithmetic-checks-for-int256-multiplication // Combining into 1 expression saves gas as resulting bytecode will only have 1 `JUMPI` // rather than 2. if iszero( and( or(iszero(x), eq(sdiv(r, x), y)), or(lt(x, not(0)), sgt(y, 0x8000000000000000000000000000000000000000000000000000000000000000)) ) ) { revert(0, 0) } // Scale the result down by 1e18. r := sdiv(r, 1000000000000000000) } } function wadDiv(int256 x, int256 y) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Store x * 1e18 in r for now. r := mul(x, 1000000000000000000) // Equivalent to require(y != 0 && ((x * 1e18) / 1e18 == x)) if iszero(and(iszero(iszero(y)), eq(sdiv(r, 1000000000000000000), x))) { revert(0, 0) } // Divide r by y. r := sdiv(r, y) } } /// @dev Will not work with negative bases, only use when x is positive. function wadPow(int256 x, int256 y) pure returns (int256) { // Equivalent to x to the power of y because x ** y = (e ** ln(x)) ** y = e ** (ln(x) * y) return wadExp((wadLn(x) * y) / 1e18); // Using ln(x) means x must be greater than 0. } function wadExp(int256 x) pure returns (int256 r) { unchecked { // When the result is < 0.5 we return zero. This happens when // x <= floor(log(0.5e18) * 1e18) ~ -42e18 if (x <= -42139678854452767551) return 0; // When the result is > (2**255 - 1) / 1e18 we can not represent it as an // int. This happens when x >= floor(log((2**255 - 1) / 1e18) * 1e18) ~ 135. if (x >= 135305999368893231589) revert("EXP_OVERFLOW"); // x is now in the range (-42, 136) * 1e18. Convert to (-42, 136) * 2**96 // for more intermediate precision and a binary basis. This base conversion // is a multiplication by 1e18 / 2**96 = 5**18 / 2**78. x = (x << 78) / 5**18; // Reduce range of x to (-½ ln 2, ½ ln 2) * 2**96 by factoring out powers // of two such that exp(x) = exp(x') * 2**k, where k is an integer. // Solving this gives k = round(x / log(2)) and x' = x - k * log(2). int256 k = ((x << 96) / 54916777467707473351141471128 + 2**95) >> 96; x = x - k * 54916777467707473351141471128; // k is in the range [-61, 195]. // Evaluate using a (6, 7)-term rational approximation. // p is made monic, we'll multiply by a scale factor later. int256 y = x + 1346386616545796478920950773328; y = ((y * x) >> 96) + 57155421227552351082224309758442; int256 p = y + x - 94201549194550492254356042504812; p = ((p * y) >> 96) + 28719021644029726153956944680412240; p = p * x + (4385272521454847904659076985693276 << 96); // We leave p in 2**192 basis so we don't need to scale it back up for the division. int256 q = x - 2855989394907223263936484059900; q = ((q * x) >> 96) + 50020603652535783019961831881945; q = ((q * x) >> 96) - 533845033583426703283633433725380; q = ((q * x) >> 96) + 3604857256930695427073651918091429; q = ((q * x) >> 96) - 14423608567350463180887372962807573; q = ((q * x) >> 96) + 26449188498355588339934803723976023; /// @solidity memory-safe-assembly assembly { // Div in assembly because solidity adds a zero check despite the unchecked. // The q polynomial won't have zeros in the domain as all its roots are complex. // No scaling is necessary because p is already 2**96 too large. r := sdiv(p, q) } // r should be in the range (0.09, 0.25) * 2**96. // We now need to multiply r by: // * the scale factor s = ~6.031367120. // * the 2**k factor from the range reduction. // * the 1e18 / 2**96 factor for base conversion. // We do this all at once, with an intermediate result in 2**213 // basis, so the final right shift is always by a positive amount. r = int256((uint256(r) * 3822833074963236453042738258902158003155416615667) >> uint256(195 - k)); } } function wadLn(int256 x) pure returns (int256 r) { unchecked { require(x > 0, "UNDEFINED"); // We want to convert x from 10**18 fixed point to 2**96 fixed point. // We do this by multiplying by 2**96 / 10**18. But since // ln(x * C) = ln(x) + ln(C), we can simply do nothing here // and add ln(2**96 / 10**18) at the end. /// @solidity memory-safe-assembly assembly { r := shl(7, lt(0xffffffffffffffffffffffffffffffff, x)) r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, x)))) r := or(r, shl(5, lt(0xffffffff, shr(r, x)))) r := or(r, shl(4, lt(0xffff, shr(r, x)))) r := or(r, shl(3, lt(0xff, shr(r, x)))) r := or(r, shl(2, lt(0xf, shr(r, x)))) r := or(r, shl(1, lt(0x3, shr(r, x)))) r := or(r, lt(0x1, shr(r, x))) } // Reduce range of x to (1, 2) * 2**96 // ln(2^k * x) = k * ln(2) + ln(x) int256 k = r - 96; x <<= uint256(159 - k); x = int256(uint256(x) >> 159); // Evaluate using a (8, 8)-term rational approximation. // p is made monic, we will multiply by a scale factor later. int256 p = x + 3273285459638523848632254066296; p = ((p * x) >> 96) + 24828157081833163892658089445524; p = ((p * x) >> 96) + 43456485725739037958740375743393; p = ((p * x) >> 96) - 11111509109440967052023855526967; p = ((p * x) >> 96) - 45023709667254063763336534515857; p = ((p * x) >> 96) - 14706773417378608786704636184526; p = p * x - (795164235651350426258249787498 << 96); // We leave p in 2**192 basis so we don't need to scale it back up for the division. // q is monic by convention. int256 q = x + 5573035233440673466300451813936; q = ((q * x) >> 96) + 71694874799317883764090561454958; q = ((q * x) >> 96) + 283447036172924575727196451306956; q = ((q * x) >> 96) + 401686690394027663651624208769553; q = ((q * x) >> 96) + 204048457590392012362485061816622; q = ((q * x) >> 96) + 31853899698501571402653359427138; q = ((q * x) >> 96) + 909429971244387300277376558375; /// @solidity memory-safe-assembly assembly { // Div in assembly because solidity adds a zero check despite the unchecked. // The q polynomial is known not to have zeros in the domain. // No scaling required because p is already 2**96 too large. r := sdiv(p, q) } // r is in the range (0, 0.125) * 2**96 // Finalization, we need to: // * multiply by the scale factor s = 5.549… // * add ln(2**96 / 10**18) // * add k * ln(2) // * multiply by 10**18 / 2**96 = 5**18 >> 78 // mul s * 5e18 * 2**96, base is now 5**18 * 2**192 r *= 1677202110996718588342820967067443963516166; // add ln(2) * k * 5e18 * 2**192 r += 16597577552685614221487285958193947469193820559219878177908093499208371 * k; // add ln(2**96 / 10**18) * 5e18 * 2**192 r += 600920179829731861736702779321621459595472258049074101567377883020018308; // base conversion: mul 2**18 / 2**192 r >>= 174; } } /// @dev Will return 0 instead of reverting if y is zero. function unsafeDiv(int256 x, int256 y) pure returns (int256 r) { /// @solidity memory-safe-assembly assembly { // Divide x by y. r := sdiv(x, y) } }
// SPDX-License-Identifier: GPL-3.0 /// @title Interface for Blast predeploy pragma solidity >=0.8.0; enum YieldMode { AUTOMATIC, VOID, CLAIMABLE } enum GasMode { VOID, CLAIMABLE } interface IBlast { // configure function configureContract(address contractAddress, YieldMode _yield, GasMode gasMode, address governor) external; function configure(YieldMode _yield, GasMode gasMode, address governor) external; // base configuration options function configureClaimableYield() external; function configureClaimableYieldOnBehalf(address contractAddress) external; function configureAutomaticYield() external; function configureAutomaticYieldOnBehalf(address contractAddress) external; function configureVoidYield() external; function configureVoidYieldOnBehalf(address contractAddress) external; function configureClaimableGas() external; function configureClaimableGasOnBehalf(address contractAddress) external; function configureVoidGas() external; function configureVoidGasOnBehalf(address contractAddress) external; function configureGovernor(address _governor) external; function configureGovernorOnBehalf(address _newGovernor, address contractAddress) external; // claim yield function claimYield(address contractAddress, address recipientOfYield, uint256 amount) external returns (uint256); function claimAllYield(address contractAddress, address recipientOfYield) external returns (uint256); // claim gas function claimAllGas(address contractAddress, address recipientOfGas) external returns (uint256); function claimGasAtMinClaimRate(address contractAddress, address recipientOfGas, uint256 minClaimRateBips) external returns (uint256); function claimMaxGas(address contractAddress, address recipientOfGas) external returns (uint256); function claimGas(address contractAddress, address recipientOfGas, uint256 gasToClaim, uint256 gasSecondsToConsume) external returns (uint256); // read functions function readClaimableYield(address contractAddress) external view returns (uint256); function readYieldConfiguration(address contractAddress) external view returns (uint8); function readGasParams(address contractAddress) external view returns (uint256 etherSeconds, uint256 etherBalance, uint256 lastUpdated, GasMode); }
// SPDX-License-Identifier: GPL-3.0 /// @title Interface for Plutocats Descriptor Minimal pragma solidity >=0.8.0; import {IPlutocatsSeeder} from "./IPlutocatsSeeder.sol"; interface IPlutocatsDescriptorMinimal { /// /// USED BY TOKEN /// function tokenURI(uint256 tokenId, IPlutocatsSeeder.Seed memory seed) external view returns (string memory); function dataURI(uint256 tokenId, IPlutocatsSeeder.Seed memory seed) external view returns (string memory); /// /// USED BY SEEDER /// function backgroundCount() external view returns (uint256); function bodyCount() external view returns (uint256); function accessoryCount() external view returns (uint256); function headCount() external view returns (uint256); function eyesCount() external view returns (uint256); function glassesCount() external view returns (uint256); }
// SPDX-License-Identifier: GPL-3.0 /// @title Interface for Plutocats Seeder pragma solidity >=0.8.0; import {IPlutocatsDescriptorMinimal} from "./IPlutocatsDescriptorMinimal.sol"; interface IPlutocatsSeeder { struct Seed { uint48 background; uint48 body; uint48 accessory; uint48 head; uint48 eyes; uint48 glasses; } function generateSeed(uint256 tokenId, IPlutocatsDescriptorMinimal descriptor) external view returns (Seed memory); }
// SPDX-License-Identifier: GPL-3.0 /// @title Interface for Plutocats Token pragma solidity >=0.8.0; import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import {IPlutocatsDescriptorMinimal} from "./IPlutocatsDescriptorMinimal.sol"; import {IPlutocatsSeeder} from "./IPlutocatsSeeder.sol"; interface IPlutocatsToken is IERC721 { struct Contribution { uint256 amount; uint256 joinTime; } event PlutocatPurchased( uint256 indexed tokenId, address indexed msgSender, uint256 price, IPlutocatsSeeder.Seed seed ); event ETHSent(address indexed to, uint256 amount); event DescriptorUpdated(address indexed newDescriptor); event SeederUpdated(address indexed newSeeder); event ReservePriceSet(bool on); event SetBlastGovernor(address indexed governor); error InsufficientFundsProvided(); error DescriptorIsLocked(); error SeederIsLocked(); error OnlyReserve(); error TokenDoesNotExist(); error CallerIsNotOwnerOrApproved(); function mint() external payable returns (uint256); function dataURI(uint256 tokenId) external returns (string memory); function setDescriptor(address descriptor) external; function setSeeder(address seeder) external; function setReservePrice(bool _enableReservePrice) external; function getPrice() external returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity >=0.8.0; import {unsafeWadDiv} from "solmate/utils/SignedWadMath.sol"; import {VRGDA} from "./VRGDA.sol"; /// @title Linear Variable Rate Gradual Dutch Auction /// @author transmissions11 <[email protected]> /// @author FrankieIsLost <[email protected]> /// @notice VRGDA with a linear issuance curve. abstract contract LinearVRGDA is VRGDA { /*////////////////////////////////////////////////////////////// PRICING PARAMETERS //////////////////////////////////////////////////////////////*/ /// @dev The total number of tokens to target selling every full unit of time. /// @dev Represented as an 18 decimal fixed point number. int256 internal immutable perTimeUnit; /// @notice Sets pricing parameters for the VRGDA. /// @param _targetPrice The target price for a token if sold on pace, scaled by 1e18. /// @param _priceDecayPercent The percent price decays per unit of time with no sales, scaled by 1e18. /// @param _perTimeUnit The number of tokens to target selling in 1 full unit of time, scaled by 1e18. constructor( int256 _targetPrice, int256 _priceDecayPercent, int256 _perTimeUnit ) VRGDA(_targetPrice, _priceDecayPercent) { perTimeUnit = _perTimeUnit; } /*////////////////////////////////////////////////////////////// PRICING LOGIC //////////////////////////////////////////////////////////////*/ /// @dev Given a number of tokens sold, return the target time that number of tokens should be sold by. /// @param sold A number of tokens sold, scaled by 1e18, to get the corresponding target sale time for. /// @return The target time the tokens should be sold by, scaled by 1e18, where the time is /// relative, such that 0 means the tokens should be sold immediately when the VRGDA begins. function getTargetSaleTime(int256 sold) public view virtual override returns (int256) { return unsafeWadDiv(sold, perTimeUnit); } }
// SPDX-License-Identifier: MIT pragma solidity >=0.8.0; import {wadExp, wadLn, wadMul, unsafeWadMul, toWadUnsafe} from "solmate/utils/SignedWadMath.sol"; /// @title Variable Rate Gradual Dutch Auction /// @author transmissions11 <[email protected]> /// @author FrankieIsLost <[email protected]> /// @notice Sell tokens roughly according to an issuance schedule. abstract contract VRGDA { /*////////////////////////////////////////////////////////////// VRGDA PARAMETERS //////////////////////////////////////////////////////////////*/ /// @notice Target price for a token, to be scaled according to sales pace. /// @dev Represented as an 18 decimal fixed point number. int256 public immutable targetPrice; /// @dev Precomputed constant that allows us to rewrite a pow() as an exp(). /// @dev Represented as an 18 decimal fixed point number. int256 internal immutable decayConstant; /// @notice Sets target price and per time unit price decay for the VRGDA. /// @param _targetPrice The target price for a token if sold on pace, scaled by 1e18. /// @param _priceDecayPercent The percent price decays per unit of time with no sales, scaled by 1e18. constructor(int256 _targetPrice, int256 _priceDecayPercent) { targetPrice = _targetPrice; decayConstant = wadLn(1e18 - _priceDecayPercent); // The decay constant must be negative for VRGDAs to work. require(decayConstant < 0, "NON_NEGATIVE_DECAY_CONSTANT"); } /*////////////////////////////////////////////////////////////// PRICING LOGIC //////////////////////////////////////////////////////////////*/ /// @notice Calculate the price of a token according to the VRGDA formula. /// @param timeSinceStart Time passed since the VRGDA began, scaled by 1e18. /// @param sold The total number of tokens that have been sold so far. /// @return The price of a token according to VRGDA, scaled by 1e18. function getVRGDAPrice(int256 timeSinceStart, uint256 sold) public view virtual returns (uint256) { unchecked { // prettier-ignore return uint256(wadMul(targetPrice, wadExp(unsafeWadMul(decayConstant, // Theoretically calling toWadUnsafe with sold can silently overflow but under // any reasonable circumstance it will never be large enough. We use sold + 1 as // the VRGDA formula's n param represents the nth token and sold is the n-1th token. timeSinceStart - getTargetSaleTime(toWadUnsafe(sold + 1)) )))); } } /// @dev Given a number of tokens sold, return the target time that number of tokens should be sold by. /// @param sold A number of tokens sold, scaled by 1e18, to get the corresponding target sale time for. /// @return The target time the tokens should be sold by, scaled by 1e18, where the time is /// relative, such that 0 means the tokens should be sold immediately when the VRGDA begins. function getTargetSaleTime(int256 sold) public view virtual returns (int256); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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[{"inputs":[{"internalType":"uint256","name":"_mintStart","type":"uint256"},{"internalType":"address","name":"_reserve","type":"address"},{"internalType":"address","name":"_descriptor","type":"address"},{"internalType":"address","name":"_seeder","type":"address"},{"internalType":"bool","name":"_enableReservePrice","type":"bool"},{"internalType":"address","name":"_blast","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"CallerIsNotOwnerOrApproved","type":"error"},{"inputs":[],"name":"DescriptorIsLocked","type":"error"},{"inputs":[],"name":"InsufficientFundsProvided","type":"error"},{"inputs":[],"name":"OnlyReserve","type":"error"},{"inputs":[],"name":"SeederIsLocked","type":"error"},{"inputs":[],"name":"TokenDoesNotExist","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newDescriptor","type":"address"}],"name":"DescriptorUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ETHSent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"msgSender","type":"address"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"},{"components":[{"internalType":"uint48","name":"background","type":"uint48"},{"internalType":"uint48","name":"body","type":"uint48"},{"internalType":"uint48","name":"accessory","type":"uint48"},{"internalType":"uint48","name":"head","type":"uint48"},{"internalType":"uint48","name":"eyes","type":"uint48"},{"internalType":"uint48","name":"glasses","type":"uint48"}],"indexed":false,"internalType":"struct IPlutocatsSeeder.Seed","name":"seed","type":"tuple"}],"name":"PlutocatPurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"on","type":"bool"}],"name":"ReservePriceSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newSeeder","type":"address"}],"name":"SeederUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"governor","type":"address"}],"name":"SetBlastGovernor","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":"BLAST_PREDEPLOY_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DELEGATION_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_START","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adjustedTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"blast","outputs":[{"internalType":"contract IBlast","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint32","name":"","type":"uint32"}],"name":"checkpoints","outputs":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint96","name":"votes","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"contributionsOf","outputs":[{"components":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"joinTime","type":"uint256"}],"internalType":"struct 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IPlutocatsDescriptorMinimal","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"enableReservePrice","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"account","type":"address"}],"name":"getCurrentVotes","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPriorVotes","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"int256","name":"sold","type":"int256"}],"name":"getTargetSaleTime","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"int256","name":"timeSinceStart","type":"int256"},{"internalType":"uint256","name":"sold","type":"uint256"}],"name":"getVRGDAPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reserve","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":[],"name":"seeder","outputs":[{"internalType":"contract IPlutocatsSeeder","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"seeds","outputs":[{"internalType":"uint48","name":"background","type":"uint48"},{"internalType":"uint48","name":"body","type":"uint48"},{"internalType":"uint48","name":"accessory","type":"uint48"},{"internalType":"uint48","name":"head","type":"uint48"},{"internalType":"uint48","name":"eyes","type":"uint48"},{"internalType":"uint48","name":"glasses","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newContractURIHash","type":"string"}],"name":"setContractURIHash","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_descriptor","type":"address"}],"name":"setDescriptor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_governor","type":"address"}],"name":"setGovernor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_enableReservePrice","type":"bool"}],"name":"setReservePrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_seeder","type":"address"}],"name":"setSeeder","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":[],"name":"targetPrice","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegator","type":"address"}],"name":"votesToDelegate","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000000000000000000000000000000000000065f3543d0000000000000000000000004ea682b94b7e13894c3d0b9afebfbdd38cdacc3c0000000000000000000000009c2682b4d295a955fb546148967aa6ca1b66d2dc000000000000000000000000e571a5dd7b38298099d27e8943748b2d8572050b00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _mintStart (uint256): 1710445629
Arg [1] : _reserve (address): 0x4eA682B94B7e13894C3d0b9afEbFbDd38CdACc3C
Arg [2] : _descriptor (address): 0x9c2682B4D295a955FB546148967aA6ca1B66d2dC
Arg [3] : _seeder (address): 0xe571a5dD7b38298099d27E8943748b2D8572050B
Arg [4] : _enableReservePrice (bool): True
Arg [5] : _blast (address): 0x0000000000000000000000000000000000000000
-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000065f3543d
Arg [1] : 0000000000000000000000004ea682b94b7e13894c3d0b9afebfbdd38cdacc3c
Arg [2] : 0000000000000000000000009c2682b4d295a955fb546148967aa6ca1b66d2dc
Arg [3] : 000000000000000000000000e571a5dd7b38298099d27e8943748b2d8572050b
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000000
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[ Download: CSV Export ]
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