ERC-721
Source Code
Overview
Max Total Supply
302,104 ALBUM
Holders
23,332
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
2 ALBUMLoading...
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Contract Name:
TokenMirror
Compiler Version
v0.8.25+commit.b61c2a91
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
import "dn404/DN404Mirror.sol";
import "solady/tokens/ERC2981.sol";
import "nft-metadata-renderer/NFTMetadataRenderer.sol";
import "./interfaces/IToken.sol";
import "./interfaces/ITokenMirror.sol";
import "./interfaces/IERC7572.sol";
import "./interfaces/IERC4906.sol";
import "./interfaces/IERC20.sol";
contract TokenMirror is
ITokenMirror,
TokenMirrorEvents,
DN404Mirror,
ERC2981,
IERC7572,
IERC4906
{
TokenConfig private _tokenConfig;
address private immutable _entropy;
constructor(
address deployer,
uint16 royaltyBPS_,
address royaltyRecipient_,
TokenConfig memory tokenConfig_
) DN404Mirror(deployer) {
_setDefaultRoyalty(royaltyRecipient_, royaltyBPS_);
_tokenConfig = tokenConfig_;
emit ContractURIUpdated();
}
modifier onlyBaseERC20() {
if (msg.sender != _getDN404NFTStorage().baseERC20) {
revert Unauthorized();
}
_;
}
function upsertMedia(
string calldata credits_,
string calldata decryptionKeysURL_,
string calldata tokenImageURL_
) external override onlyBaseERC20 {
if (bytes(credits_).length > 0) {
_tokenConfig.credits = credits_;
emit ContractURIUpdated();
}
if (bytes(decryptionKeysURL_).length > 0)
_tokenConfig.decryptionKeysURL = decryptionKeysURL_;
if (bytes(tokenImageURL_).length > 0) {
_tokenConfig.tokenImageURL = tokenImageURL_;
uint256 _totalSupply = totalSupply();
if (_totalSupply > 0) {
emit BatchMetadataUpdate(1, _totalSupply);
}
}
emit MediaUpdated(credits_, decryptionKeysURL_, tokenImageURL_);
}
function tokenURI(
uint256 tokenId
) public view override returns (string memory) {
ownerOf(tokenId);
address base = _getDN404NFTStorage().baseERC20;
uint8 score = IToken(base).getScore(tokenId);
NFTMetadataRenderer.Field[]
memory attributeFields = new NFTMetadataRenderer.Field[](2);
attributeFields[1] = NFTMetadataRenderer.Field("trait_type", "SWORDS");
attributeFields[0] = NFTMetadataRenderer.Field(
"value",
LibString.repeat(unicode"⚔️", score)
);
string memory attributesData = string(
abi.encodePacked(
"{",
NFTMetadataRenderer.fieldData(attributeFields),
"}"
)
);
return
string(
NFTMetadataRenderer.tokenURIMetadata(
IERC20(base).name(),
_tokenConfig.description,
_tokenURIFields(score),
attributesData,
tokenId,
0
)
);
}
function contractURI() public view returns (string memory) {
NFTMetadataRenderer.Field[]
memory mediaFields = new NFTMetadataRenderer.Field[](3);
mediaFields[2] = NFTMetadataRenderer.Field({
name: "image",
value: _tokenConfig.contractImageURL
});
mediaFields[1] = NFTMetadataRenderer.Field({
name: "external_link",
value: _tokenConfig.externalURL
});
mediaFields[0] = NFTMetadataRenderer.Field({
name: "credits",
value: _tokenConfig.credits
});
(address royaltyRecipient, uint256 royaltyBPS) = royaltyInfo(1, 10_000);
return
string(
NFTMetadataRenderer.contractURIMetadata(
IERC20(_getDN404NFTStorage().baseERC20).name(),
_tokenConfig.description,
mediaFields,
royaltyBPS,
royaltyRecipient
)
);
}
function refreshMetadata(
uint256 _fromTokenId,
uint256 _toTokenId
) external onlyBaseERC20 {
emit BatchMetadataUpdate(_fromTokenId, _toTokenId);
}
function supportsInterface(
bytes4 interfaceId
) public pure override(DN404Mirror, ERC2981) returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC721: 0x80ac58cd, ERC721Metadata: 0x5b5e139f, ERC2981: 0x2a55205a, ERC4906: 0x49064906, ERC7572:0xe8a3d485
result := or(
or(eq(s, 0x01ffc9a7), eq(s, 0x80ac58cd)),
or(eq(s, 0x5b5e139f), or(eq(s, 0x2a55205a), eq(s, 0xe8a3d485)))
)
}
}
function _tokenURIFields(
uint8 score
) internal view returns (NFTMetadataRenderer.Field[] memory) {
NFTMetadataRenderer.Field[]
memory mediaFields = new NFTMetadataRenderer.Field[](3);
mediaFields[0] = NFTMetadataRenderer.Field({
name: "decryption_keys_url",
value: _tokenConfig.decryptionKeysURL
});
mediaFields[1] = NFTMetadataRenderer.Field({
name: "encrypted_album_url",
value: _tokenConfig.encryptedAlbumURL
});
mediaFields[2] = NFTMetadataRenderer.Field({
name: "image",
value: string.concat(
_tokenConfig.tokenImageURL,
string.concat(LibString.toString(score), ".png")
)
});
return mediaFields;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @title DN404Mirror
/// @notice DN404Mirror provides an interface for interacting with the
/// NFT tokens in a DN404 implementation.
///
/// @author vectorized.eth (@optimizoor)
/// @author Quit (@0xQuit)
/// @author Michael Amadi (@AmadiMichaels)
/// @author cygaar (@0xCygaar)
/// @author Thomas (@0xjustadev)
/// @author Harrison (@PopPunkOnChain)
///
/// @dev Note:
/// - The ERC721 data is stored in the base DN404 contract.
contract DN404Mirror {
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* EVENTS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Emitted when token `id` is transferred from `from` to `to`.
event Transfer(address indexed from, address indexed to, uint256 indexed id);
/// @dev Emitted when `owner` enables `account` to manage the `id` token.
event Approval(address indexed owner, address indexed account, uint256 indexed id);
/// @dev Emitted when `owner` enables or disables `operator` to manage all of their tokens.
event ApprovalForAll(address indexed owner, address indexed operator, bool isApproved);
/// @dev The ownership is transferred from `oldOwner` to `newOwner`.
/// This is for marketplace signaling purposes. This contract has a `pullOwner()`
/// function that will sync the owner from the base contract.
event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);
/// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
uint256 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
/// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
uint256 private constant _APPROVAL_EVENT_SIGNATURE =
0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;
/// @dev `keccak256(bytes("ApprovalForAll(address,address,bool)"))`.
uint256 private constant _APPROVAL_FOR_ALL_EVENT_SIGNATURE =
0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31;
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* CUSTOM ERRORS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Thrown when a call for an NFT function did not originate
/// from the base DN404 contract.
error SenderNotBase();
/// @dev Thrown when a call for an NFT function did not originate from the deployer.
error SenderNotDeployer();
/// @dev Thrown when transferring an NFT to a contract address that
/// does not implement ERC721Receiver.
error TransferToNonERC721ReceiverImplementer();
/// @dev Thrown when a linkMirrorContract call is received and the
/// NFT mirror contract has already been linked to a DN404 base contract.
error AlreadyLinked();
/// @dev Thrown when retrieving the base DN404 address when a link has not
/// been established.
error NotLinked();
/// @dev The function selector is not recognized.
error FnSelectorNotRecognized();
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* STORAGE */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Struct contain the NFT mirror contract storage.
struct DN404NFTStorage {
// Address of the ERC20 base contract.
address baseERC20;
// The deployer, if provided. If non-zero, the initialization of the
// ERC20 <-> ERC721 link can only be done by the deployer via the ERC20 base contract.
address deployer;
// The owner of the ERC20 base contract. For marketplace signaling.
address owner;
}
/// @dev Returns a storage pointer for DN404NFTStorage.
function _getDN404NFTStorage() internal pure virtual returns (DN404NFTStorage storage $) {
/// @solidity memory-safe-assembly
assembly {
// `uint72(bytes9(keccak256("DN404_MIRROR_STORAGE")))`.
$.slot := 0x3602298b8c10b01230 // Truncate to 9 bytes to reduce bytecode size.
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* CONSTRUCTOR */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
constructor(address deployer) {
// For non-proxies, we will store the deployer so that only the deployer can
// link the base contract.
_getDN404NFTStorage().deployer = deployer;
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* ERC721 OPERATIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the token collection name from the base DN404 contract.
function name() public view virtual returns (string memory) {
return _readString(0x06fdde03, 0); // `name()`.
}
/// @dev Returns the token collection symbol from the base DN404 contract.
function symbol() public view virtual returns (string memory) {
return _readString(0x95d89b41, 0); // `symbol()`.
}
/// @dev Returns the Uniform Resource Identifier (URI) for token `id` from
/// the base DN404 contract.
function tokenURI(uint256 id) public view virtual returns (string memory) {
ownerOf(id); // `ownerOf` reverts if the token does not exist.
// We'll leave if optional for `_tokenURI` to revert for non-existent token
// on the ERC20 side, since this is only recommended by the ERC721 standard.
return _readString(0xcb30b460, id); // `tokenURINFT(uint256)`.
}
/// @dev Returns the total NFT supply from the base DN404 contract.
function totalSupply() public view virtual returns (uint256) {
return _readWord(0xe2c79281, 0, 0); // `totalNFTSupply()`.
}
/// @dev Returns the number of NFT tokens owned by `nftOwner` from the base DN404 contract.
///
/// Requirements:
/// - `nftOwner` must not be the zero address.
function balanceOf(address nftOwner) public view virtual returns (uint256) {
return _readWord(0xf5b100ea, uint160(nftOwner), 0); // `balanceOfNFT(address)`.
}
/// @dev Returns the owner of token `id` from the base DN404 contract.
///
/// Requirements:
/// - Token `id` must exist.
function ownerOf(uint256 id) public view virtual returns (address) {
return address(uint160(_readWord(0x2d8a746e, id, 0))); // `ownerOfNFT(uint256)`.
}
/// @dev Returns the owner of token `id` from the base DN404 contract.
/// Returns `address(0)` instead of reverting if the token does not exist.
function ownerAt(uint256 id) public view virtual returns (address) {
return address(uint160(_readWord(0xc016aa52, id, 0))); // `ownerAtNFT(uint256)`.
}
/// @dev Sets `spender` as the approved account to manage token `id` in
/// the base DN404 contract.
///
/// Requirements:
/// - Token `id` must exist.
/// - The caller must be the owner of the token,
/// or an approved operator for the token owner.
///
/// Emits an {Approval} event.
function approve(address spender, uint256 id) public payable virtual {
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
spender := shr(96, shl(96, spender))
let m := mload(0x40)
mstore(0x00, 0xd10b6e0c) // `approveNFT(address,uint256,address)`.
mstore(0x20, spender)
mstore(0x40, id)
mstore(0x60, caller())
if iszero(
and( // Arguments of `and` are evaluated last to first.
gt(returndatasize(), 0x1f), // The call must return at least 32 bytes.
call(gas(), base, callvalue(), 0x1c, 0x64, 0x00, 0x20)
)
) {
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
mstore(0x40, m) // Restore the free memory pointer.
mstore(0x60, 0) // Restore the zero pointer.
// Emit the {Approval} event.
log4(codesize(), 0x00, _APPROVAL_EVENT_SIGNATURE, shr(96, mload(0x0c)), spender, id)
}
}
/// @dev Returns the account approved to manage token `id` from
/// the base DN404 contract.
///
/// Requirements:
/// - Token `id` must exist.
function getApproved(uint256 id) public view virtual returns (address) {
return address(uint160(_readWord(0x27ef5495, id, 0))); // `getApprovedNFT(uint256)`.
}
/// @dev Sets whether `operator` is approved to manage the tokens of the caller in
/// the base DN404 contract.
///
/// Emits an {ApprovalForAll} event.
function setApprovalForAll(address operator, bool approved) public virtual {
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
operator := shr(96, shl(96, operator))
let m := mload(0x40)
mstore(0x00, 0xf6916ddd) // `setApprovalForAllNFT(address,bool,address)`.
mstore(0x20, operator)
mstore(0x40, iszero(iszero(approved)))
mstore(0x60, caller())
if iszero(
and( // Arguments of `and` are evaluated last to first.
eq(mload(0x00), 1), // The call must return 1.
call(gas(), base, callvalue(), 0x1c, 0x64, 0x00, 0x20)
)
) {
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
// Emit the {ApprovalForAll} event.
// The `approved` value is already at 0x40.
log3(0x40, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, caller(), operator)
mstore(0x40, m) // Restore the free memory pointer.
mstore(0x60, 0) // Restore the zero pointer.
}
}
/// @dev Returns whether `operator` is approved to manage the tokens of `nftOwner` from
/// the base DN404 contract.
function isApprovedForAll(address nftOwner, address operator)
public
view
virtual
returns (bool)
{
// `isApprovedForAllNFT(address,address)`.
return _readWord(0x62fb246d, uint160(nftOwner), uint160(operator)) != 0;
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - The caller must be the owner of the token, or be approved to manage the token.
///
/// Emits a {Transfer} event.
function transferFrom(address from, address to, uint256 id) public payable virtual {
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
from := shr(96, shl(96, from))
to := shr(96, shl(96, to))
let m := mload(0x40)
mstore(m, 0xe5eb36c8) // `transferFromNFT(address,address,uint256,address)`.
mstore(add(m, 0x20), from)
mstore(add(m, 0x40), to)
mstore(add(m, 0x60), id)
mstore(add(m, 0x80), caller())
if iszero(
and( // Arguments of `and` are evaluated last to first.
eq(mload(m), 1), // The call must return 1.
call(gas(), base, callvalue(), add(m, 0x1c), 0x84, m, 0x20)
)
) {
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
// Emit the {Transfer} event.
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, from, to, id)
}
}
/// @dev Equivalent to `safeTransferFrom(from, to, id, "")`.
function safeTransferFrom(address from, address to, uint256 id) public payable virtual {
transferFrom(from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, "");
}
/// @dev Transfers token `id` from `from` to `to`.
///
/// Requirements:
///
/// - Token `id` must exist.
/// - `from` must be the owner of the token.
/// - `to` cannot be the zero address.
/// - The caller must be the owner of the token, or be approved to manage the token.
/// - 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 id, bytes calldata data)
public
payable
virtual
{
transferFrom(from, to, id);
if (_hasCode(to)) _checkOnERC721Received(from, to, id, data);
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC721: 0x80ac58cd, ERC721Metadata: 0x5b5e139f.
result := or(or(eq(s, 0x01ffc9a7), eq(s, 0x80ac58cd)), eq(s, 0x5b5e139f))
}
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* OWNER SYNCING OPERATIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the `owner` of the contract, for marketplace signaling purposes.
function owner() public view virtual returns (address) {
return _getDN404NFTStorage().owner;
}
/// @dev Permissionless function to pull the owner from the base DN404 contract
/// if it implements ownable, for marketplace signaling purposes.
function pullOwner() public virtual returns (bool) {
address newOwner;
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, 0x8da5cb5b) // `owner()`.
let success := staticcall(gas(), base, 0x1c, 0x04, 0x00, 0x20)
newOwner := mul(shr(96, mload(0x0c)), and(gt(returndatasize(), 0x1f), success))
}
DN404NFTStorage storage $ = _getDN404NFTStorage();
address oldOwner = $.owner;
if (oldOwner != newOwner) {
$.owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
return true;
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* MIRROR OPERATIONS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Returns the address of the base DN404 contract.
function baseERC20() public view virtual returns (address base) {
base = _getDN404NFTStorage().baseERC20;
if (base == address(0)) revert NotLinked();
}
/// @dev Fallback modifier to execute calls from the base DN404 contract.
modifier dn404NFTFallback() virtual {
DN404NFTStorage storage $ = _getDN404NFTStorage();
uint256 fnSelector = _calldataload(0x00) >> 224;
// `logTransfer(uint256[])`.
if (fnSelector == 0x263c69d6) {
if (msg.sender != $.baseERC20) revert SenderNotBase();
/// @solidity memory-safe-assembly
assembly {
let o := add(0x24, calldataload(0x04)) // Packed logs offset.
let end := add(o, shl(5, calldataload(sub(o, 0x20))))
for {} iszero(eq(o, end)) { o := add(0x20, o) } {
let d := calldataload(o) // Entry in the packed logs.
let a := shr(96, d) // The address.
let b := and(1, d) // Whether it is a burn.
log4(
codesize(),
0x00,
_TRANSFER_EVENT_SIGNATURE,
mul(a, b), // `from`.
mul(a, iszero(b)), // `to`.
shr(168, shl(160, d)) // `id`.
)
}
mstore(0x00, 0x01)
return(0x00, 0x20)
}
}
// `logDirectTransfer(address,address,uint256[])`.
if (fnSelector == 0x144027d3) {
if (msg.sender != $.baseERC20) revert SenderNotBase();
/// @solidity memory-safe-assembly
assembly {
let from := calldataload(0x04)
let to := calldataload(0x24)
let o := add(0x24, calldataload(0x44)) // Direct logs offset.
let end := add(o, shl(5, calldataload(sub(o, 0x20))))
for {} iszero(eq(o, end)) { o := add(0x20, o) } {
log4(codesize(), 0x00, _TRANSFER_EVENT_SIGNATURE, from, to, calldataload(o))
}
mstore(0x00, 0x01)
return(0x00, 0x20)
}
}
// `linkMirrorContract(address)`.
if (fnSelector == 0x0f4599e5) {
if ($.deployer != address(0)) {
if (address(uint160(_calldataload(0x04))) != $.deployer) {
revert SenderNotDeployer();
}
}
if ($.baseERC20 != address(0)) revert AlreadyLinked();
$.baseERC20 = msg.sender;
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, 0x01)
return(0x00, 0x20)
}
}
_;
}
/// @dev Fallback function for calls from base DN404 contract.
/// Override this if you need to implement your custom
/// fallback with utilities like Solady's `LibZip.cdFallback()`.
/// And always remember to always wrap the fallback with `dn404NFTFallback`.
fallback() external payable virtual dn404NFTFallback {
revert FnSelectorNotRecognized(); // Not mandatory. Just for quality of life.
}
/// @dev This is to silence the compiler warning.
/// Override and remove the revert if you want your contract to receive ETH via receive.
receive() external payable virtual {
if (msg.value != 0) revert();
}
/*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
/* PRIVATE HELPERS */
/*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/
/// @dev Helper to read a string from the base DN404 contract.
function _readString(uint256 fnSelector, uint256 arg0)
private
view
returns (string memory result)
{
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
mstore(0x00, fnSelector)
mstore(0x20, arg0)
if iszero(staticcall(gas(), base, 0x1c, 0x24, 0x00, 0x00)) {
returndatacopy(result, 0x00, returndatasize())
revert(result, returndatasize())
}
returndatacopy(0x00, 0x00, 0x20) // Copy the offset of the string in returndata.
returndatacopy(result, mload(0x00), 0x20) // Copy the length of the string.
returndatacopy(add(result, 0x20), add(mload(0x00), 0x20), mload(result)) // Copy the string.
let end := add(add(result, 0x20), mload(result))
mstore(end, 0) // Zeroize the word after the string.
mstore(0x40, add(end, 0x20)) // Allocate memory.
}
}
/// @dev Helper to read a word from the base DN404 contract.
function _readWord(uint256 fnSelector, uint256 arg0, uint256 arg1)
private
view
returns (uint256 result)
{
address base = baseERC20();
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40)
mstore(0x00, fnSelector)
mstore(0x20, arg0)
mstore(0x40, arg1)
if iszero(
and( // Arguments of `and` are evaluated last to first.
gt(returndatasize(), 0x1f), // The call must return at least 32 bytes.
staticcall(gas(), base, 0x1c, 0x44, 0x00, 0x20)
)
) {
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
mstore(0x40, m) // Restore the free memory pointer.
result := mload(0x00)
}
}
/// @dev Returns the calldata value at `offset`.
function _calldataload(uint256 offset) private pure returns (uint256 value) {
/// @solidity memory-safe-assembly
assembly {
value := calldataload(offset)
}
}
/// @dev Returns if `a` has bytecode of non-zero length.
function _hasCode(address a) private view returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := extcodesize(a) // Can handle dirty upper bits.
}
}
/// @dev Perform a call to invoke {IERC721Receiver-onERC721Received} on `to`.
/// Reverts if the target does not support the function correctly.
function _checkOnERC721Received(address from, address to, uint256 id, bytes memory data)
private
{
/// @solidity memory-safe-assembly
assembly {
// Prepare the calldata.
let m := mload(0x40)
let onERC721ReceivedSelector := 0x150b7a02
mstore(m, onERC721ReceivedSelector)
mstore(add(m, 0x20), caller()) // The `operator`, which is always `msg.sender`.
mstore(add(m, 0x40), shr(96, shl(96, from)))
mstore(add(m, 0x60), id)
mstore(add(m, 0x80), 0x80)
let n := mload(data)
mstore(add(m, 0xa0), n)
if n { pop(staticcall(gas(), 4, add(data, 0x20), n, add(m, 0xc0), n)) }
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), add(n, 0xa4), m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(m, 0x00, returndatasize())
revert(m, returndatasize())
}
}
// Load the returndata and compare it.
if iszero(eq(mload(m), shl(224, onERC721ReceivedSelector))) {
mstore(0x00, 0xd1a57ed6) // `TransferToNonERC721ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC2981 NFT Royalty Standard implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC2981.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/common/ERC2981.sol)
abstract contract ERC2981 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The royalty fee numerator exceeds the fee denominator.
error RoyaltyOverflow();
/// @dev The royalty receiver cannot be the zero address.
error RoyaltyReceiverIsZeroAddress();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The default royalty info is given by:
/// ```
/// let packed := sload(_ERC2981_MASTER_SLOT_SEED)
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
///
/// The per token royalty info is given by.
/// ```
/// mstore(0x00, tokenId)
/// mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
/// let packed := sload(keccak256(0x00, 0x40))
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
uint256 private constant _ERC2981_MASTER_SLOT_SEED = 0xaa4ec00224afccfdb7;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC2981 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Checks that `_feeDenominator` is non-zero.
constructor() {
require(_feeDenominator() != 0, "Fee denominator cannot be zero.");
}
/// @dev Returns the denominator for the royalty amount.
/// Defaults to 10000, which represents fees in basis points.
/// Override this function to return a custom amount if needed.
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC2981: 0x2a55205a.
result := or(eq(s, 0x01ffc9a7), eq(s, 0x2a55205a))
}
}
/// @dev Returns the `receiver` and `royaltyAmount` for `tokenId` sold at `salePrice`.
function royaltyInfo(uint256 tokenId, uint256 salePrice)
public
view
virtual
returns (address receiver, uint256 royaltyAmount)
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
let packed := sload(keccak256(0x00, 0x40))
receiver := shr(96, packed)
if iszero(receiver) {
packed := sload(mload(0x20))
receiver := shr(96, packed)
}
let x := salePrice
let y := xor(packed, shl(96, receiver)) // `feeNumerator`.
// Overflow check, equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
// Out-of-gas revert. Should not be triggered in practice, but included for safety.
returndatacopy(returndatasize(), returndatasize(), mul(y, gt(x, div(not(0), y))))
royaltyAmount := div(mul(x, y), feeDenominator)
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
sstore(_ERC2981_MASTER_SLOT_SEED, or(packed, feeNumerator))
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator` to zero.
function _deleteDefaultRoyalty() internal virtual {
/// @solidity memory-safe-assembly
assembly {
sstore(_ERC2981_MASTER_SLOT_SEED, 0)
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator)
internal
virtual
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), or(packed, feeNumerator))
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId` to zero.
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), 0)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;
import "solady/utils/Base64.sol";
import "solady/utils/LibString.sol";
/// @notice Library for rendering metadata for NFTs.
/// @author indreams.eth
library NFTMetadataRenderer {
struct Field {
string name;
string value;
}
/// @notice Generate tokenURI metadata.
/// @param name Name of NFT in metadata.
/// @param description Description of NFT in metadata.
/// @param mediaFields List of mediaFields to include in metadata.
/// @param attributesData List of attributes to include in metadata.
/// @param tokenId Token ID for specific token.
/// @param size Size of entire edition to show.
function tokenURIMetadata(
string memory name,
string memory description,
Field[] memory mediaFields,
string memory attributesData,
uint256 tokenId,
uint256 size
) internal pure returns (string memory) {
return
encodeMetadataJSON(
createTokenURIMetadataJSON(
name,
description,
mediaFields,
attributesData,
tokenId,
size
)
);
}
/// @notice Generate contractURI metadata.
/// @param name Name of NFT in metadata.
/// @param description Description of NFT in metadata.
/// @param mediaFields List of mediaFields to include in metadata.
/// @param royaltyBPS Royalty basis points.
/// @param royaltyRecipient Royalty recipient.
function contractURIMetadata(
string memory name,
string memory description,
Field[] memory mediaFields,
uint256 royaltyBPS,
address royaltyRecipient
) internal pure returns (string memory) {
return
encodeMetadataJSON(
createContractURIMetadataJSON(
name,
description,
mediaFields,
royaltyBPS,
royaltyRecipient
)
);
}
function createTokenURIMetadataJSON(
string memory name,
string memory description,
Field[] memory mediaFields,
string memory attributesData,
uint256 tokenId,
uint256 size
) internal pure returns (bytes memory) {
bytes memory tokenNumber;
if (size > 0) {
tokenNumber = abi.encodePacked("/", LibString.toString(size));
}
bytes memory mediaData;
if (mediaFields.length > 0) {
mediaData = abi.encodePacked(",", fieldData(mediaFields));
}
bytes memory attributes;
if (bytes(attributesData).length > 0) {
attributes = abi.encodePacked(
', "attributes": [',
attributesData,
"]"
);
}
return
abi.encodePacked(
'{"name": "',
name,
" ",
LibString.toString(tokenId),
tokenNumber,
'","',
'description": "',
description,
'"',
mediaData,
attributes,
"}"
);
}
function createContractURIMetadataJSON(
string memory name,
string memory description,
Field[] memory mediaFields,
uint256 royaltyBPS,
address royaltyRecipient
) internal pure returns (bytes memory) {
bytes memory mediaData;
if (mediaFields.length > 0) {
mediaData = abi.encodePacked(",", fieldData(mediaFields));
}
return
abi.encodePacked(
'{"name": "',
name,
'", "description": "',
description,
'", "seller_fee_basis_points": ',
LibString.toString(royaltyBPS),
', "fee_recipient": "',
LibString.toHexString(uint256(uint160(royaltyRecipient)), 20),
'"',
mediaData,
"}"
);
}
/// @notice Encode the json bytes into base64 data uri format.
/// @param json The json bytes to encode.
function encodeMetadataJSON(
bytes memory json
) internal pure returns (string memory) {
return
string.concat("data:application/json;base64,", Base64.encode(json));
}
/// @notice Encode the svg bytes into base64 data uri format.
/// @param svg The svg bytes to encode.
function encodeSVG(bytes memory svg) internal pure returns (string memory) {
return string.concat("data:image/svg+xml;base64,", Base64.encode(svg));
}
/// @notice Generate key/value data for metadata.
/// [{name: "x", value: "y"}, {name:"a", value: "b"}] -> "a": "b", "x": "y"
/// @param fields List of fields to include in metadata.
function fieldData(
Field[] memory fields
) internal pure returns (string memory) {
if (fields.length == 0) return "";
string memory tokenMedia = string.concat(
'"',
fields[0].name,
'": "',
fields[0].value,
'"'
);
for (uint256 i = 1; i < fields.length; i++) {
tokenMedia = string.concat(
'"',
fields[i].name,
'": "',
fields[i].value,
'",',
tokenMedia
);
}
return tokenMedia;
}
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
interface IToken {
error InvalidMintTimes();
error InvalidInterval();
error InvalidPrice();
error TotalSupplyReached();
error NotLive();
error NotTransferable();
error InvalidNFTAmount();
error Unsupported();
error BeforeMintPeriod();
error AfterMintPeriod();
error InvalidIntervalAmount();
error InvalidFee();
error InvalidEntropyFee();
error RandomnessAlreadyFulfilled();
error CannotRevealWhileMintIsLive();
error InvalidProvider();
error InvalidSequenceId();
struct MintConfig {
uint256 startTime;
uint256 endTime;
uint256 interval;
uint96 ethPrice;
uint96 usdcPrice;
address usdcAddress;
address fundsRecipient;
}
function purchase(uint256 nftAmount_, address to_) external payable;
function purchaseWithUSDC(uint256 nftAmount_, address to_) external;
function mint(uint256 nftAmount_, address to_) external;
function reduceIntervals(uint256 intervalAmount_) external;
function allowTransfers() external;
function toggleLive() external;
function upsertMedia(
string calldata credits_,
string calldata decryptionKeysURL_,
string calldata tokenImageURL_
) external;
function mintCount(address account) external view returns (uint256);
function reveal() external payable;
function getScore(uint256 tokenId) external view returns (uint8);
function setSkipNFT(address account, bool status) external returns (bool);
}
interface TokenEvents {
event IntervalsReduced(
uint256 oldIntervalsReduced,
uint256 newIntervalsReduced
);
event Minted(
address to,
uint256 amount,
uint256 secondsReduced,
uint256 totalIntervalsReduced
);
event LiveSet(bool live);
event TransfersAllowed();
event EntropyRequested(address sender, uint64 sequenceId);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
interface ITokenMirror {
error Unauthorized();
struct TokenConfig {
string description;
string externalURL;
string contractImageURL;
string tokenImageURL;
string encryptedAlbumURL;
string decryptionKeysURL;
string credits;
}
function upsertMedia(
string calldata credits_,
string calldata decryptionKeysURL_,
string calldata tokenImageURL_
) external;
function refreshMetadata(uint256 _fromTokenId, uint256 _toTokenId) external;
}
interface TokenMirrorEvents {
event MediaUpdated(
string credits,
string decryptionKeysURL,
string tokenImageURL
);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
interface IERC7572 {
event ContractURIUpdated();
function contractURI() external view returns (string memory);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
interface IERC4906 {
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.25;
interface IERC20 {
function name() external view returns (string memory);
}// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Library to encode strings in Base64. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Base64.sol) /// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/Base64.sol) /// @author Modified from (https://github.com/Brechtpd/base64/blob/main/base64.sol) by Brecht Devos - <[email protected]>. library Base64 { /// @dev Encodes `data` using the base64 encoding described in RFC 4648. /// See: https://datatracker.ietf.org/doc/html/rfc4648 /// @param fileSafe Whether to replace '+' with '-' and '/' with '_'. /// @param noPadding Whether to strip away the padding. function encode(bytes memory data, bool fileSafe, bool noPadding) internal pure returns (string memory result) { /// @solidity memory-safe-assembly assembly { let dataLength := mload(data) if dataLength { // Multiply by 4/3 rounded up. // The `shl(2, ...)` is equivalent to multiplying by 4. let encodedLength := shl(2, div(add(dataLength, 2), 3)) // Set `result` to point to the start of the free memory. result := mload(0x40) // Store the table into the scratch space. // Offsetted by -1 byte so that the `mload` will load the character. // We will rewrite the free memory pointer at `0x40` later with // the allocated size. // The magic constant 0x0670 will turn "-_" into "+/". mstore(0x1f, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef") mstore(0x3f, xor("ghijklmnopqrstuvwxyz0123456789-_", mul(iszero(fileSafe), 0x0670))) // Skip the first slot, which stores the length. let ptr := add(result, 0x20) let end := add(ptr, encodedLength) let dataEnd := add(add(0x20, data), dataLength) let dataEndValue := mload(dataEnd) // Cache the value at the `dataEnd` slot. mstore(dataEnd, 0x00) // Zeroize the `dataEnd` slot to clear dirty bits. // Run over the input, 3 bytes at a time. for {} 1 {} { data := add(data, 3) // Advance 3 bytes. let input := mload(data) // Write 4 bytes. Optimized for fewer stack operations. mstore8(0, mload(and(shr(18, input), 0x3F))) mstore8(1, mload(and(shr(12, input), 0x3F))) mstore8(2, mload(and(shr(6, input), 0x3F))) mstore8(3, mload(and(input, 0x3F))) mstore(ptr, mload(0x00)) ptr := add(ptr, 4) // Advance 4 bytes. if iszero(lt(ptr, end)) { break } } mstore(dataEnd, dataEndValue) // Restore the cached value at `dataEnd`. mstore(0x40, add(end, 0x20)) // Allocate the memory. // Equivalent to `o = [0, 2, 1][dataLength % 3]`. let o := div(2, mod(dataLength, 3)) // Offset `ptr` and pad with '='. We can simply write over the end. mstore(sub(ptr, o), shl(240, 0x3d3d)) // Set `o` to zero if there is padding. o := mul(iszero(iszero(noPadding)), o) mstore(sub(ptr, o), 0) // Zeroize the slot after the string. mstore(result, sub(encodedLength, o)) // Store the length. } } } /// @dev Encodes `data` using the base64 encoding described in RFC 4648. /// Equivalent to `encode(data, false, false)`. function encode(bytes memory data) internal pure returns (string memory result) { result = encode(data, false, false); } /// @dev Encodes `data` using the base64 encoding described in RFC 4648. /// Equivalent to `encode(data, fileSafe, false)`. function encode(bytes memory data, bool fileSafe) internal pure returns (string memory result) { result = encode(data, fileSafe, false); } /// @dev Decodes base64 encoded `data`. /// /// Supports: /// - RFC 4648 (both standard and file-safe mode). /// - RFC 3501 (63: ','). /// /// Does not support: /// - Line breaks. /// /// Note: For performance reasons, /// this function will NOT revert on invalid `data` inputs. /// Outputs for invalid inputs will simply be undefined behaviour. /// It is the user's responsibility to ensure that the `data` /// is a valid base64 encoded string. function decode(string memory data) internal pure returns (bytes memory result) { /// @solidity memory-safe-assembly assembly { let dataLength := mload(data) if dataLength { let decodedLength := mul(shr(2, dataLength), 3) for {} 1 {} { // If padded. if iszero(and(dataLength, 3)) { let t := xor(mload(add(data, dataLength)), 0x3d3d) // forgefmt: disable-next-item decodedLength := sub( decodedLength, add(iszero(byte(30, t)), iszero(byte(31, t))) ) break } // If non-padded. decodedLength := add(decodedLength, sub(and(dataLength, 3), 1)) break } result := mload(0x40) // Write the length of the bytes. mstore(result, decodedLength) // Skip the first slot, which stores the length. let ptr := add(result, 0x20) let end := add(ptr, decodedLength) // Load the table into the scratch space. // Constants are optimized for smaller bytecode with zero gas overhead. // `m` also doubles as the mask of the upper 6 bits. let m := 0xfc000000fc00686c7074787c8084888c9094989ca0a4a8acb0b4b8bcc0c4c8cc mstore(0x5b, m) mstore(0x3b, 0x04080c1014181c2024282c3034383c4044484c5054585c6064) mstore(0x1a, 0xf8fcf800fcd0d4d8dce0e4e8ecf0f4) for {} 1 {} { // Read 4 bytes. data := add(data, 4) let input := mload(data) // Write 3 bytes. // forgefmt: disable-next-item mstore(ptr, or( and(m, mload(byte(28, input))), shr(6, or( and(m, mload(byte(29, input))), shr(6, or( and(m, mload(byte(30, input))), shr(6, mload(byte(31, input))) )) )) )) ptr := add(ptr, 3) if iszero(lt(ptr, end)) { break } } mstore(0x40, add(end, 0x20)) // Allocate the memory. mstore(end, 0) // Zeroize the slot after the bytes. mstore(0x60, 0) // Restore the zero slot. } } } }
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Library for converting numbers into strings and other string operations.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibString.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/LibString.sol)
///
/// @dev Note:
/// For performance and bytecode compactness, most of the string operations are restricted to
/// byte strings (7-bit ASCII), except where otherwise specified.
/// Usage of byte string operations on charsets with runes spanning two or more bytes
/// can lead to undefined behavior.
library LibString {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The length of the output is too small to contain all the hex digits.
error HexLengthInsufficient();
/// @dev The length of the string is more than 32 bytes.
error TooBigForSmallString();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The constant returned when the `search` is not found in the string.
uint256 internal constant NOT_FOUND = type(uint256).max;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* DECIMAL OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the base 10 decimal representation of `value`.
function toString(uint256 value) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit), but
// we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
// We will need 1 word for the trailing zeros padding, 1 word for the length,
// and 3 words for a maximum of 78 digits.
str := add(mload(0x40), 0x80)
// Update the free memory pointer to allocate.
mstore(0x40, add(str, 0x20))
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end of the memory to calculate the length later.
let end := str
let w := not(0) // Tsk.
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let temp := value } 1 {} {
str := add(str, w) // `sub(str, 1)`.
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing `temp` until zero.
temp := div(temp, 10)
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
/// @dev Returns the base 10 decimal representation of `value`.
function toString(int256 value) internal pure returns (string memory str) {
if (value >= 0) {
return toString(uint256(value));
}
unchecked {
str = toString(~uint256(value) + 1);
}
/// @solidity memory-safe-assembly
assembly {
// We still have some spare memory space on the left,
// as we have allocated 3 words (96 bytes) for up to 78 digits.
let length := mload(str) // Load the string length.
mstore(str, 0x2d) // Store the '-' character.
str := sub(str, 1) // Move back the string pointer by a byte.
mstore(str, add(length, 1)) // Update the string length.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* HEXADECIMAL OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the hexadecimal representation of `value`,
/// left-padded to an input length of `length` bytes.
/// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
/// giving a total length of `length * 2 + 2` bytes.
/// Reverts if `length` is too small for the output to contain all the digits.
function toHexString(uint256 value, uint256 length) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value, length);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hexadecimal representation of `value`,
/// left-padded to an input length of `length` bytes.
/// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
/// giving a total length of `length * 2` bytes.
/// Reverts if `length` is too small for the output to contain all the digits.
function toHexStringNoPrefix(uint256 value, uint256 length)
internal
pure
returns (string memory str)
{
/// @solidity memory-safe-assembly
assembly {
// We need 0x20 bytes for the trailing zeros padding, `length * 2` bytes
// for the digits, 0x02 bytes for the prefix, and 0x20 bytes for the length.
// We add 0x20 to the total and round down to a multiple of 0x20.
// (0x20 + 0x20 + 0x02 + 0x20) = 0x62.
str := add(mload(0x40), and(add(shl(1, length), 0x42), not(0x1f)))
// Allocate the memory.
mstore(0x40, add(str, 0x20))
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end to calculate the length later.
let end := str
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
let start := sub(str, add(length, length))
let w := not(1) // Tsk.
let temp := value
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for {} 1 {} {
str := add(str, w) // `sub(str, 2)`.
mstore8(add(str, 1), mload(and(temp, 15)))
mstore8(str, mload(and(shr(4, temp), 15)))
temp := shr(8, temp)
if iszero(xor(str, start)) { break }
}
if temp {
mstore(0x00, 0x2194895a) // `HexLengthInsufficient()`.
revert(0x1c, 0x04)
}
// Compute the string's length.
let strLength := sub(end, str)
// Move the pointer and write the length.
str := sub(str, 0x20)
mstore(str, strLength)
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
/// As address are 20 bytes long, the output will left-padded to have
/// a length of `20 * 2 + 2` bytes.
function toHexString(uint256 value) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x".
/// The output excludes leading "0" from the `toHexString` output.
/// `0x00: "0x0", 0x01: "0x1", 0x12: "0x12", 0x123: "0x123"`.
function toMinimalHexString(uint256 value) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let o := eq(byte(0, mload(add(str, 0x20))), 0x30) // Whether leading zero is present.
let strLength := add(mload(str), 2) // Compute the length.
mstore(add(str, o), 0x3078) // Write the "0x" prefix, accounting for leading zero.
str := sub(add(str, o), 2) // Move the pointer, accounting for leading zero.
mstore(str, sub(strLength, o)) // Write the length, accounting for leading zero.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output excludes leading "0" from the `toHexStringNoPrefix` output.
/// `0x00: "0", 0x01: "1", 0x12: "12", 0x123: "123"`.
function toMinimalHexStringNoPrefix(uint256 value) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let o := eq(byte(0, mload(add(str, 0x20))), 0x30) // Whether leading zero is present.
let strLength := mload(str) // Get the length.
str := add(str, o) // Move the pointer, accounting for leading zero.
mstore(str, sub(strLength, o)) // Write the length, accounting for leading zero.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is encoded using 2 hexadecimal digits per byte.
/// As address are 20 bytes long, the output will left-padded to have
/// a length of `20 * 2` bytes.
function toHexStringNoPrefix(uint256 value) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
// We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
// 0x02 bytes for the prefix, and 0x40 bytes for the digits.
// The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x40) is 0xa0.
str := add(mload(0x40), 0x80)
// Allocate the memory.
mstore(0x40, add(str, 0x20))
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end to calculate the length later.
let end := str
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
let w := not(1) // Tsk.
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let temp := value } 1 {} {
str := add(str, w) // `sub(str, 2)`.
mstore8(add(str, 1), mload(and(temp, 15)))
mstore8(str, mload(and(shr(4, temp), 15)))
temp := shr(8, temp)
if iszero(temp) { break }
}
// Compute the string's length.
let strLength := sub(end, str)
// Move the pointer and write the length.
str := sub(str, 0x20)
mstore(str, strLength)
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x", encoded using 2 hexadecimal digits per byte,
/// and the alphabets are capitalized conditionally according to
/// https://eips.ethereum.org/EIPS/eip-55
function toHexStringChecksummed(address value) internal pure returns (string memory str) {
str = toHexString(value);
/// @solidity memory-safe-assembly
assembly {
let mask := shl(6, div(not(0), 255)) // `0b010000000100000000 ...`
let o := add(str, 0x22)
let hashed := and(keccak256(o, 40), mul(34, mask)) // `0b10001000 ... `
let t := shl(240, 136) // `0b10001000 << 240`
for { let i := 0 } 1 {} {
mstore(add(i, i), mul(t, byte(i, hashed)))
i := add(i, 1)
if eq(i, 20) { break }
}
mstore(o, xor(mload(o), shr(1, and(mload(0x00), and(mload(o), mask)))))
o := add(o, 0x20)
mstore(o, xor(mload(o), shr(1, and(mload(0x20), and(mload(o), mask)))))
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
function toHexString(address value) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(address value) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
str := mload(0x40)
// Allocate the memory.
// We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
// 0x02 bytes for the prefix, and 0x28 bytes for the digits.
// The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x28) is 0x80.
mstore(0x40, add(str, 0x80))
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
str := add(str, 2)
mstore(str, 40)
let o := add(str, 0x20)
mstore(add(o, 40), 0)
value := shl(96, value)
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for { let i := 0 } 1 {} {
let p := add(o, add(i, i))
let temp := byte(i, value)
mstore8(add(p, 1), mload(and(temp, 15)))
mstore8(p, mload(shr(4, temp)))
i := add(i, 1)
if eq(i, 20) { break }
}
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexString(bytes memory raw) internal pure returns (string memory str) {
str = toHexStringNoPrefix(raw);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(bytes memory raw) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
let length := mload(raw)
str := add(mload(0x40), 2) // Skip 2 bytes for the optional prefix.
mstore(str, add(length, length)) // Store the length of the output.
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
let o := add(str, 0x20)
let end := add(raw, length)
for {} iszero(eq(raw, end)) {} {
raw := add(raw, 1)
mstore8(add(o, 1), mload(and(mload(raw), 15)))
mstore8(o, mload(and(shr(4, mload(raw)), 15)))
o := add(o, 2)
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate the memory.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* RUNE STRING OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the number of UTF characters in the string.
function runeCount(string memory s) internal pure returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
if mload(s) {
mstore(0x00, div(not(0), 255))
mstore(0x20, 0x0202020202020202020202020202020202020202020202020303030304040506)
let o := add(s, 0x20)
let end := add(o, mload(s))
for { result := 1 } 1 { result := add(result, 1) } {
o := add(o, byte(0, mload(shr(250, mload(o)))))
if iszero(lt(o, end)) { break }
}
}
}
}
/// @dev Returns if this string is a 7-bit ASCII string.
/// (i.e. all characters codes are in [0..127])
function is7BitASCII(string memory s) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let mask := shl(7, div(not(0), 255))
result := 1
let n := mload(s)
if n {
let o := add(s, 0x20)
let end := add(o, n)
let last := mload(end)
mstore(end, 0)
for {} 1 {} {
if and(mask, mload(o)) {
result := 0
break
}
o := add(o, 0x20)
if iszero(lt(o, end)) { break }
}
mstore(end, last)
}
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* BYTE STRING OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// For performance and bytecode compactness, byte string operations are restricted
// to 7-bit ASCII strings. All offsets are byte offsets, not UTF character offsets.
// Usage of byte string operations on charsets with runes spanning two or more bytes
// can lead to undefined behavior.
/// @dev Returns `subject` all occurrences of `search` replaced with `replacement`.
function replace(string memory subject, string memory search, string memory replacement)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLength := mload(subject)
let searchLength := mload(search)
let replacementLength := mload(replacement)
subject := add(subject, 0x20)
search := add(search, 0x20)
replacement := add(replacement, 0x20)
result := add(mload(0x40), 0x20)
let subjectEnd := add(subject, subjectLength)
if iszero(gt(searchLength, subjectLength)) {
let subjectSearchEnd := add(sub(subjectEnd, searchLength), 1)
let h := 0
if iszero(lt(searchLength, 0x20)) { h := keccak256(search, searchLength) }
let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
let s := mload(search)
for {} 1 {} {
let t := mload(subject)
// Whether the first `searchLength % 32` bytes of
// `subject` and `search` matches.
if iszero(shr(m, xor(t, s))) {
if h {
if iszero(eq(keccak256(subject, searchLength), h)) {
mstore(result, t)
result := add(result, 1)
subject := add(subject, 1)
if iszero(lt(subject, subjectSearchEnd)) { break }
continue
}
}
// Copy the `replacement` one word at a time.
for { let o := 0 } 1 {} {
mstore(add(result, o), mload(add(replacement, o)))
o := add(o, 0x20)
if iszero(lt(o, replacementLength)) { break }
}
result := add(result, replacementLength)
subject := add(subject, searchLength)
if searchLength {
if iszero(lt(subject, subjectSearchEnd)) { break }
continue
}
}
mstore(result, t)
result := add(result, 1)
subject := add(subject, 1)
if iszero(lt(subject, subjectSearchEnd)) { break }
}
}
let resultRemainder := result
result := add(mload(0x40), 0x20)
let k := add(sub(resultRemainder, result), sub(subjectEnd, subject))
// Copy the rest of the string one word at a time.
for {} lt(subject, subjectEnd) {} {
mstore(resultRemainder, mload(subject))
resultRemainder := add(resultRemainder, 0x20)
subject := add(subject, 0x20)
}
result := sub(result, 0x20)
let last := add(add(result, 0x20), k) // Zeroize the slot after the string.
mstore(last, 0)
mstore(0x40, add(last, 0x20)) // Allocate the memory.
mstore(result, k) // Store the length.
}
}
/// @dev Returns the byte index of the first location of `search` in `subject`,
/// searching from left to right, starting from `from`.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
function indexOf(string memory subject, string memory search, uint256 from)
internal
pure
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
for { let subjectLength := mload(subject) } 1 {} {
if iszero(mload(search)) {
if iszero(gt(from, subjectLength)) {
result := from
break
}
result := subjectLength
break
}
let searchLength := mload(search)
let subjectStart := add(subject, 0x20)
result := not(0) // Initialize to `NOT_FOUND`.
subject := add(subjectStart, from)
let end := add(sub(add(subjectStart, subjectLength), searchLength), 1)
let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
let s := mload(add(search, 0x20))
if iszero(and(lt(subject, end), lt(from, subjectLength))) { break }
if iszero(lt(searchLength, 0x20)) {
for { let h := keccak256(add(search, 0x20), searchLength) } 1 {} {
if iszero(shr(m, xor(mload(subject), s))) {
if eq(keccak256(subject, searchLength), h) {
result := sub(subject, subjectStart)
break
}
}
subject := add(subject, 1)
if iszero(lt(subject, end)) { break }
}
break
}
for {} 1 {} {
if iszero(shr(m, xor(mload(subject), s))) {
result := sub(subject, subjectStart)
break
}
subject := add(subject, 1)
if iszero(lt(subject, end)) { break }
}
break
}
}
}
/// @dev Returns the byte index of the first location of `search` in `subject`,
/// searching from left to right.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
function indexOf(string memory subject, string memory search)
internal
pure
returns (uint256 result)
{
result = indexOf(subject, search, 0);
}
/// @dev Returns the byte index of the first location of `search` in `subject`,
/// searching from right to left, starting from `from`.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
function lastIndexOf(string memory subject, string memory search, uint256 from)
internal
pure
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
for {} 1 {} {
result := not(0) // Initialize to `NOT_FOUND`.
let searchLength := mload(search)
if gt(searchLength, mload(subject)) { break }
let w := result
let fromMax := sub(mload(subject), searchLength)
if iszero(gt(fromMax, from)) { from := fromMax }
let end := add(add(subject, 0x20), w)
subject := add(add(subject, 0x20), from)
if iszero(gt(subject, end)) { break }
// As this function is not too often used,
// we shall simply use keccak256 for smaller bytecode size.
for { let h := keccak256(add(search, 0x20), searchLength) } 1 {} {
if eq(keccak256(subject, searchLength), h) {
result := sub(subject, add(end, 1))
break
}
subject := add(subject, w) // `sub(subject, 1)`.
if iszero(gt(subject, end)) { break }
}
break
}
}
}
/// @dev Returns the byte index of the first location of `search` in `subject`,
/// searching from right to left.
/// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
function lastIndexOf(string memory subject, string memory search)
internal
pure
returns (uint256 result)
{
result = lastIndexOf(subject, search, uint256(int256(-1)));
}
/// @dev Returns true if `search` is found in `subject`, false otherwise.
function contains(string memory subject, string memory search) internal pure returns (bool) {
return indexOf(subject, search) != NOT_FOUND;
}
/// @dev Returns whether `subject` starts with `search`.
function startsWith(string memory subject, string memory search)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let searchLength := mload(search)
// Just using keccak256 directly is actually cheaper.
// forgefmt: disable-next-item
result := and(
iszero(gt(searchLength, mload(subject))),
eq(
keccak256(add(subject, 0x20), searchLength),
keccak256(add(search, 0x20), searchLength)
)
)
}
}
/// @dev Returns whether `subject` ends with `search`.
function endsWith(string memory subject, string memory search)
internal
pure
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
let searchLength := mload(search)
let subjectLength := mload(subject)
// Whether `search` is not longer than `subject`.
let withinRange := iszero(gt(searchLength, subjectLength))
// Just using keccak256 directly is actually cheaper.
// forgefmt: disable-next-item
result := and(
withinRange,
eq(
keccak256(
// `subject + 0x20 + max(subjectLength - searchLength, 0)`.
add(add(subject, 0x20), mul(withinRange, sub(subjectLength, searchLength))),
searchLength
),
keccak256(add(search, 0x20), searchLength)
)
)
}
}
/// @dev Returns `subject` repeated `times`.
function repeat(string memory subject, uint256 times)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLength := mload(subject)
if iszero(or(iszero(times), iszero(subjectLength))) {
subject := add(subject, 0x20)
result := mload(0x40)
let output := add(result, 0x20)
for {} 1 {} {
// Copy the `subject` one word at a time.
for { let o := 0 } 1 {} {
mstore(add(output, o), mload(add(subject, o)))
o := add(o, 0x20)
if iszero(lt(o, subjectLength)) { break }
}
output := add(output, subjectLength)
times := sub(times, 1)
if iszero(times) { break }
}
mstore(output, 0) // Zeroize the slot after the string.
let resultLength := sub(output, add(result, 0x20))
mstore(result, resultLength) // Store the length.
// Allocate the memory.
mstore(0x40, add(result, add(resultLength, 0x20)))
}
}
}
/// @dev Returns a copy of `subject` sliced from `start` to `end` (exclusive).
/// `start` and `end` are byte offsets.
function slice(string memory subject, uint256 start, uint256 end)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLength := mload(subject)
if iszero(gt(subjectLength, end)) { end := subjectLength }
if iszero(gt(subjectLength, start)) { start := subjectLength }
if lt(start, end) {
result := mload(0x40)
let resultLength := sub(end, start)
mstore(result, resultLength)
subject := add(subject, start)
let w := not(0x1f)
// Copy the `subject` one word at a time, backwards.
for { let o := and(add(resultLength, 0x1f), w) } 1 {} {
mstore(add(result, o), mload(add(subject, o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
// Zeroize the slot after the string.
mstore(add(add(result, 0x20), resultLength), 0)
// Allocate memory for the length and the bytes,
// rounded up to a multiple of 32.
mstore(0x40, add(result, and(add(resultLength, 0x3f), w)))
}
}
}
/// @dev Returns a copy of `subject` sliced from `start` to the end of the string.
/// `start` is a byte offset.
function slice(string memory subject, uint256 start)
internal
pure
returns (string memory result)
{
result = slice(subject, start, uint256(int256(-1)));
}
/// @dev Returns all the indices of `search` in `subject`.
/// The indices are byte offsets.
function indicesOf(string memory subject, string memory search)
internal
pure
returns (uint256[] memory result)
{
/// @solidity memory-safe-assembly
assembly {
let subjectLength := mload(subject)
let searchLength := mload(search)
if iszero(gt(searchLength, subjectLength)) {
subject := add(subject, 0x20)
search := add(search, 0x20)
result := add(mload(0x40), 0x20)
let subjectStart := subject
let subjectSearchEnd := add(sub(add(subject, subjectLength), searchLength), 1)
let h := 0
if iszero(lt(searchLength, 0x20)) { h := keccak256(search, searchLength) }
let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
let s := mload(search)
for {} 1 {} {
let t := mload(subject)
// Whether the first `searchLength % 32` bytes of
// `subject` and `search` matches.
if iszero(shr(m, xor(t, s))) {
if h {
if iszero(eq(keccak256(subject, searchLength), h)) {
subject := add(subject, 1)
if iszero(lt(subject, subjectSearchEnd)) { break }
continue
}
}
// Append to `result`.
mstore(result, sub(subject, subjectStart))
result := add(result, 0x20)
// Advance `subject` by `searchLength`.
subject := add(subject, searchLength)
if searchLength {
if iszero(lt(subject, subjectSearchEnd)) { break }
continue
}
}
subject := add(subject, 1)
if iszero(lt(subject, subjectSearchEnd)) { break }
}
let resultEnd := result
// Assign `result` to the free memory pointer.
result := mload(0x40)
// Store the length of `result`.
mstore(result, shr(5, sub(resultEnd, add(result, 0x20))))
// Allocate memory for result.
// We allocate one more word, so this array can be recycled for {split}.
mstore(0x40, add(resultEnd, 0x20))
}
}
}
/// @dev Returns a arrays of strings based on the `delimiter` inside of the `subject` string.
function split(string memory subject, string memory delimiter)
internal
pure
returns (string[] memory result)
{
uint256[] memory indices = indicesOf(subject, delimiter);
/// @solidity memory-safe-assembly
assembly {
let w := not(0x1f)
let indexPtr := add(indices, 0x20)
let indicesEnd := add(indexPtr, shl(5, add(mload(indices), 1)))
mstore(add(indicesEnd, w), mload(subject))
mstore(indices, add(mload(indices), 1))
let prevIndex := 0
for {} 1 {} {
let index := mload(indexPtr)
mstore(indexPtr, 0x60)
if iszero(eq(index, prevIndex)) {
let element := mload(0x40)
let elementLength := sub(index, prevIndex)
mstore(element, elementLength)
// Copy the `subject` one word at a time, backwards.
for { let o := and(add(elementLength, 0x1f), w) } 1 {} {
mstore(add(element, o), mload(add(add(subject, prevIndex), o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
// Zeroize the slot after the string.
mstore(add(add(element, 0x20), elementLength), 0)
// Allocate memory for the length and the bytes,
// rounded up to a multiple of 32.
mstore(0x40, add(element, and(add(elementLength, 0x3f), w)))
// Store the `element` into the array.
mstore(indexPtr, element)
}
prevIndex := add(index, mload(delimiter))
indexPtr := add(indexPtr, 0x20)
if iszero(lt(indexPtr, indicesEnd)) { break }
}
result := indices
if iszero(mload(delimiter)) {
result := add(indices, 0x20)
mstore(result, sub(mload(indices), 2))
}
}
}
/// @dev Returns a concatenated string of `a` and `b`.
/// Cheaper than `string.concat()` and does not de-align the free memory pointer.
function concat(string memory a, string memory b)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let w := not(0x1f)
result := mload(0x40)
let aLength := mload(a)
// Copy `a` one word at a time, backwards.
for { let o := and(add(aLength, 0x20), w) } 1 {} {
mstore(add(result, o), mload(add(a, o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
let bLength := mload(b)
let output := add(result, aLength)
// Copy `b` one word at a time, backwards.
for { let o := and(add(bLength, 0x20), w) } 1 {} {
mstore(add(output, o), mload(add(b, o)))
o := add(o, w) // `sub(o, 0x20)`.
if iszero(o) { break }
}
let totalLength := add(aLength, bLength)
let last := add(add(result, 0x20), totalLength)
// Zeroize the slot after the string.
mstore(last, 0)
// Stores the length.
mstore(result, totalLength)
// Allocate memory for the length and the bytes,
// rounded up to a multiple of 32.
mstore(0x40, and(add(last, 0x1f), w))
}
}
/// @dev Returns a copy of the string in either lowercase or UPPERCASE.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function toCase(string memory subject, bool toUpper)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let length := mload(subject)
if length {
result := add(mload(0x40), 0x20)
subject := add(subject, 1)
let flags := shl(add(70, shl(5, toUpper)), 0x3ffffff)
let w := not(0)
for { let o := length } 1 {} {
o := add(o, w)
let b := and(0xff, mload(add(subject, o)))
mstore8(add(result, o), xor(b, and(shr(b, flags), 0x20)))
if iszero(o) { break }
}
result := mload(0x40)
mstore(result, length) // Store the length.
let last := add(add(result, 0x20), length)
mstore(last, 0) // Zeroize the slot after the string.
mstore(0x40, add(last, 0x20)) // Allocate the memory.
}
}
}
/// @dev Returns a string from a small bytes32 string.
/// `s` must be null-terminated, or behavior will be undefined.
function fromSmallString(bytes32 s) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(0x40)
let n := 0
for {} byte(n, s) { n := add(n, 1) } {} // Scan for '\0'.
mstore(result, n)
let o := add(result, 0x20)
mstore(o, s)
mstore(add(o, n), 0)
mstore(0x40, add(result, 0x40))
}
}
/// @dev Returns the small string, with all bytes after the first null byte zeroized.
function normalizeSmallString(bytes32 s) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
for {} byte(result, s) { result := add(result, 1) } {} // Scan for '\0'.
mstore(0x00, s)
mstore(result, 0x00)
result := mload(0x00)
}
}
/// @dev Returns the string as a normalized null-terminated small string.
function toSmallString(string memory s) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
result := mload(s)
if iszero(lt(result, 33)) {
mstore(0x00, 0xec92f9a3) // `TooBigForSmallString()`.
revert(0x1c, 0x04)
}
result := shl(shl(3, sub(32, result)), mload(add(s, result)))
}
}
/// @dev Returns a lowercased copy of the string.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function lower(string memory subject) internal pure returns (string memory result) {
result = toCase(subject, false);
}
/// @dev Returns an UPPERCASED copy of the string.
/// WARNING! This function is only compatible with 7-bit ASCII strings.
function upper(string memory subject) internal pure returns (string memory result) {
result = toCase(subject, true);
}
/// @dev Escapes the string to be used within HTML tags.
function escapeHTML(string memory s) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
let end := add(s, mload(s))
result := add(mload(0x40), 0x20)
// Store the bytes of the packed offsets and strides into the scratch space.
// `packed = (stride << 5) | offset`. Max offset is 20. Max stride is 6.
mstore(0x1f, 0x900094)
mstore(0x08, 0xc0000000a6ab)
// Store ""&'<>" into the scratch space.
mstore(0x00, shl(64, 0x2671756f743b26616d703b262333393b266c743b2667743b))
for {} iszero(eq(s, end)) {} {
s := add(s, 1)
let c := and(mload(s), 0xff)
// Not in `["\"","'","&","<",">"]`.
if iszero(and(shl(c, 1), 0x500000c400000000)) {
mstore8(result, c)
result := add(result, 1)
continue
}
let t := shr(248, mload(c))
mstore(result, mload(and(t, 0x1f)))
result := add(result, shr(5, t))
}
let last := result
mstore(last, 0) // Zeroize the slot after the string.
result := mload(0x40)
mstore(result, sub(last, add(result, 0x20))) // Store the length.
mstore(0x40, add(last, 0x20)) // Allocate the memory.
}
}
/// @dev Escapes the string to be used within double-quotes in a JSON.
/// If `addDoubleQuotes` is true, the result will be enclosed in double-quotes.
function escapeJSON(string memory s, bool addDoubleQuotes)
internal
pure
returns (string memory result)
{
/// @solidity memory-safe-assembly
assembly {
let end := add(s, mload(s))
result := add(mload(0x40), 0x20)
if addDoubleQuotes {
mstore8(result, 34)
result := add(1, result)
}
// Store "\\u0000" in scratch space.
// Store "0123456789abcdef" in scratch space.
// Also, store `{0x08:"b", 0x09:"t", 0x0a:"n", 0x0c:"f", 0x0d:"r"}`.
// into the scratch space.
mstore(0x15, 0x5c75303030303031323334353637383961626364656662746e006672)
// Bitmask for detecting `["\"","\\"]`.
let e := or(shl(0x22, 1), shl(0x5c, 1))
for {} iszero(eq(s, end)) {} {
s := add(s, 1)
let c := and(mload(s), 0xff)
if iszero(lt(c, 0x20)) {
if iszero(and(shl(c, 1), e)) {
// Not in `["\"","\\"]`.
mstore8(result, c)
result := add(result, 1)
continue
}
mstore8(result, 0x5c) // "\\".
mstore8(add(result, 1), c)
result := add(result, 2)
continue
}
if iszero(and(shl(c, 1), 0x3700)) {
// Not in `["\b","\t","\n","\f","\d"]`.
mstore8(0x1d, mload(shr(4, c))) // Hex value.
mstore8(0x1e, mload(and(c, 15))) // Hex value.
mstore(result, mload(0x19)) // "\\u00XX".
result := add(result, 6)
continue
}
mstore8(result, 0x5c) // "\\".
mstore8(add(result, 1), mload(add(c, 8)))
result := add(result, 2)
}
if addDoubleQuotes {
mstore8(result, 34)
result := add(1, result)
}
let last := result
mstore(last, 0) // Zeroize the slot after the string.
result := mload(0x40)
mstore(result, sub(last, add(result, 0x20))) // Store the length.
mstore(0x40, add(last, 0x20)) // Allocate the memory.
}
}
/// @dev Escapes the string to be used within double-quotes in a JSON.
function escapeJSON(string memory s) internal pure returns (string memory result) {
result = escapeJSON(s, false);
}
/// @dev Returns whether `a` equals `b`.
function eq(string memory a, string memory b) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := eq(keccak256(add(a, 0x20), mload(a)), keccak256(add(b, 0x20), mload(b)))
}
}
/// @dev Returns whether `a` equals `b`, where `b` is a null-terminated small string.
function eqs(string memory a, bytes32 b) internal pure returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
// These should be evaluated on compile time, as far as possible.
let m := not(shl(7, div(not(iszero(b)), 255))) // `0x7f7f ...`.
let x := not(or(m, or(b, add(m, and(b, m)))))
let r := shl(7, iszero(iszero(shr(128, x))))
r := or(r, shl(6, iszero(iszero(shr(64, 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))))
// forgefmt: disable-next-item
result := gt(eq(mload(a), add(iszero(x), xor(31, shr(3, r)))),
xor(shr(add(8, r), b), shr(add(8, r), mload(add(a, 0x20)))))
}
}
/// @dev Packs a single string with its length into a single word.
/// Returns `bytes32(0)` if the length is zero or greater than 31.
function packOne(string memory a) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
// We don't need to zero right pad the string,
// since this is our own custom non-standard packing scheme.
result :=
mul(
// Load the length and the bytes.
mload(add(a, 0x1f)),
// `length != 0 && length < 32`. Abuses underflow.
// Assumes that the length is valid and within the block gas limit.
lt(sub(mload(a), 1), 0x1f)
)
}
}
/// @dev Unpacks a string packed using {packOne}.
/// Returns the empty string if `packed` is `bytes32(0)`.
/// If `packed` is not an output of {packOne}, the output behavior is undefined.
function unpackOne(bytes32 packed) internal pure returns (string memory result) {
/// @solidity memory-safe-assembly
assembly {
// Grab the free memory pointer.
result := mload(0x40)
// Allocate 2 words (1 for the length, 1 for the bytes).
mstore(0x40, add(result, 0x40))
// Zeroize the length slot.
mstore(result, 0)
// Store the length and bytes.
mstore(add(result, 0x1f), packed)
// Right pad with zeroes.
mstore(add(add(result, 0x20), mload(result)), 0)
}
}
/// @dev Packs two strings with their lengths into a single word.
/// Returns `bytes32(0)` if combined length is zero or greater than 30.
function packTwo(string memory a, string memory b) internal pure returns (bytes32 result) {
/// @solidity memory-safe-assembly
assembly {
let aLength := mload(a)
// We don't need to zero right pad the strings,
// since this is our own custom non-standard packing scheme.
result :=
mul(
// Load the length and the bytes of `a` and `b`.
or(
shl(shl(3, sub(0x1f, aLength)), mload(add(a, aLength))),
mload(sub(add(b, 0x1e), aLength))
),
// `totalLength != 0 && totalLength < 31`. Abuses underflow.
// Assumes that the lengths are valid and within the block gas limit.
lt(sub(add(aLength, mload(b)), 1), 0x1e)
)
}
}
/// @dev Unpacks strings packed using {packTwo}.
/// Returns the empty strings if `packed` is `bytes32(0)`.
/// If `packed` is not an output of {packTwo}, the output behavior is undefined.
function unpackTwo(bytes32 packed)
internal
pure
returns (string memory resultA, string memory resultB)
{
/// @solidity memory-safe-assembly
assembly {
// Grab the free memory pointer.
resultA := mload(0x40)
resultB := add(resultA, 0x40)
// Allocate 2 words for each string (1 for the length, 1 for the byte). Total 4 words.
mstore(0x40, add(resultB, 0x40))
// Zeroize the length slots.
mstore(resultA, 0)
mstore(resultB, 0)
// Store the lengths and bytes.
mstore(add(resultA, 0x1f), packed)
mstore(add(resultB, 0x1f), mload(add(add(resultA, 0x20), mload(resultA))))
// Right pad with zeroes.
mstore(add(add(resultA, 0x20), mload(resultA)), 0)
mstore(add(add(resultB, 0x20), mload(resultB)), 0)
}
}
/// @dev Directly returns `a` without copying.
function directReturn(string memory a) internal pure {
assembly {
// Assumes that the string does not start from the scratch space.
let retStart := sub(a, 0x20)
let retUnpaddedSize := add(mload(a), 0x40)
// Right pad with zeroes. Just in case the string is produced
// by a method that doesn't zero right pad.
mstore(add(retStart, retUnpaddedSize), 0)
// Store the return offset.
mstore(retStart, 0x20)
// End the transaction, returning the string.
return(retStart, and(not(0x1f), add(0x1f, retUnpaddedSize)))
}
}
}{
"remappings": [
"dn404/=lib/dn404/src/",
"forge-std/=lib/forge-std/src/",
"solady/=lib/solady/src/",
"nft-metadata-renderer/=lib/nft-metadata-renderer/src/",
"ds-test/=lib/uniform-random-number/lib/forge-std/lib/ds-test/src/",
"openzeppelin/=lib/uniform-random-number/lib/openzeppelin-contracts/contracts/",
"uniform-random-number/=lib/uniform-random-number/src/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "paris",
"viaIR": false,
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"deployer","type":"address"},{"internalType":"uint16","name":"royaltyBPS_","type":"uint16"},{"internalType":"address","name":"royaltyRecipient_","type":"address"},{"components":[{"internalType":"string","name":"description","type":"string"},{"internalType":"string","name":"externalURL","type":"string"},{"internalType":"string","name":"contractImageURL","type":"string"},{"internalType":"string","name":"tokenImageURL","type":"string"},{"internalType":"string","name":"encryptedAlbumURL","type":"string"},{"internalType":"string","name":"decryptionKeysURL","type":"string"},{"internalType":"string","name":"credits","type":"string"}],"internalType":"struct ITokenMirror.TokenConfig","name":"tokenConfig_","type":"tuple"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyLinked","type":"error"},{"inputs":[],"name":"FnSelectorNotRecognized","type":"error"},{"inputs":[],"name":"NotLinked","type":"error"},{"inputs":[],"name":"RoyaltyOverflow","type":"error"},{"inputs":[],"name":"RoyaltyReceiverIsZeroAddress","type":"error"},{"inputs":[],"name":"SenderNotBase","type":"error"},{"inputs":[],"name":"SenderNotDeployer","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","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":"isApproved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toTokenId","type":"uint256"}],"name":"BatchMetadataUpdate","type":"event"},{"anonymous":false,"inputs":[],"name":"ContractURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"credits","type":"string"},{"indexed":false,"internalType":"string","name":"decryptionKeysURL","type":"string"},{"indexed":false,"internalType":"string","name":"tokenImageURL","type":"string"}],"name":"MediaUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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":"id","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"nftOwner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseERC20","outputs":[{"internalType":"address","name":"base","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"nftOwner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"ownerAt","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pullOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_fromTokenId","type":"uint256"},{"internalType":"uint256","name":"_toTokenId","type":"uint256"}],"name":"refreshMetadata","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"result","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"id","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"credits_","type":"string"},{"internalType":"string","name":"decryptionKeysURL_","type":"string"},{"internalType":"string","name":"tokenImageURL_","type":"string"}],"name":"upsertMedia","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : deployer (address): 0xc91359DC9fEa6F848797DE7fD26D5610DDa40d47
Arg [1] : royaltyBPS_ (uint16): 500
Arg [2] : royaltyRecipient_ (address): 0x79F84CdCe6Ca936E2D37471D5d2F8248c6317Ea8
Arg [3] : tokenConfig_ (tuple):
Arg [1] : description (string): Recorded in secret over six years, Once Upon a Time in Shaolin is the seventh studio album from the Wu-Tang Clan.
Arg [2] : externalURL (string): https://thealbum.com
Arg [3] : contractImageURL (string): ipfs://QmfPXkFnH5Tu8BEa5GDTFoA53bb8KZ5CzzrnpQsmq77Kau/
Arg [4] : tokenImageURL (string): ipfs://Qmbbz8HwBz2i3s5H4JaKk5RdbzWWFrxdPUKiq7JdinvsnJ/
Arg [5] : encryptedAlbumURL (string): ipfs://QmdqWf8uuASR5fGf2FFjjJLwn5aWAfecdZgshrRqgZDfpD/
Arg [6] : decryptionKeysURL (string):
Arg [7] : credits (string): ipfs://QmSfM8wTrRAiXgSXXzJr4MAfa79o4mS5itogtjuSHkGDSd/
-----Encoded View---------------
31 Constructor Arguments found :
Arg [0] : 000000000000000000000000c91359dc9fea6f848797de7fd26d5610dda40d47
Arg [1] : 00000000000000000000000000000000000000000000000000000000000001f4
Arg [2] : 00000000000000000000000079f84cdce6ca936e2d37471d5d2f8248c6317ea8
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [4] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000180
Arg [6] : 00000000000000000000000000000000000000000000000000000000000001c0
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000220
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000280
Arg [9] : 00000000000000000000000000000000000000000000000000000000000002e0
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000300
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000071
Arg [12] : 5265636f7264656420696e20736563726574206f766572207369782079656172
Arg [13] : 732c204f6e63652055706f6e20612054696d6520696e205368616f6c696e2069
Arg [14] : 732074686520736576656e74682073747564696f20616c62756d2066726f6d20
Arg [15] : 7468652057752d54616e6720436c616e2e000000000000000000000000000000
Arg [16] : 0000000000000000000000000000000000000000000000000000000000000014
Arg [17] : 68747470733a2f2f746865616c62756d2e636f6d000000000000000000000000
Arg [18] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [19] : 697066733a2f2f516d6650586b466e483554753842456135474454466f413533
Arg [20] : 6262384b5a35437a7a726e7051736d7137374b61752f00000000000000000000
Arg [21] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [22] : 697066733a2f2f516d62627a384877427a326933733548344a614b6b35526462
Arg [23] : 7a57574672786450554b6971374a64696e76736e4a2f00000000000000000000
Arg [24] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [25] : 697066733a2f2f516d64715766387575415352356647663246466a6a4a4c776e
Arg [26] : 35615741666563645a677368725271675a446670442f00000000000000000000
Arg [27] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [28] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [29] : 697066733a2f2f516d53664d3877547252416958675358587a4a72344d416661
Arg [30] : 37396f346d533569746f67746a7553486b474453642f00000000000000000000
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A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.