Sponsored
Sponsored
Sponsored
Sponsored
CryptoWins
200% Welcome Bonus – Supercharge Your Crypto Up to 4 BTC! Claim Now!
Play 100s of games anonymously with all major cryptos. Join CryptoWins & start winning!
Feature Tip: Add private address tag to any address under My Name Tag !
ERC-20
DeFi- Check previous token supply
- Add Token to MetaMask (Web3)
- Update Token Info
- Update Name Tag or Label
- Submit Burn Details
- Report/Flag Address
Overview
Max Total Supply
115,881.181132824422985937 BLAZE
Holders
199 ( 2.010%)
Total Transfers
-
Market
Price
$2.63 @ 0.000851 ETH (-1.51%)
Onchain Market Cap
$304,767.51
Circulating Supply Market Cap
$303,933.00
Other Info
Token Contract (WITH 18 Decimals)
0xfcd7ccee4071aa4ecfac1683b7cc0afecaf42a36
- Transfers
- Holders
- Info
- Contract
- Analytics
- CardsNew
Loading...
Loading
Loading...
Loading
Loading...
Loading
OVERVIEW
Blaze is a novel Ethereum-based DeFi project offering a unique auction-based token minting and staking platform where users fuel their crypto earnings by purchasing batches and staking tokens for rewards over time.
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
- Code
- Read Contract
- Write Contract
Contract Source Code Verified (Exact Match)
Contract Name:
BlazeERC20
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
- Blockscan IDE
- 🤖 Code ReaderBeta
- Remix IDE
- Similar
- Sol2Uml
- Submit Audit
- Compare
File 1 of 19 : draft-IERC6093.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)pragma solidity ^0.8.20;/** * @dev Standard ERC20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens. */interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender);}/** * @dev Standard ERC721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens. */interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator);}/** * @dev Standard ERC1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens. */interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);}
File 2 of 19 : IERC5267.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)pragma solidity ^0.8.20;interface IERC5267 { /** * @dev MAY be emitted to signal that the domain could have changed. */ event EIP712DomainChanged(); /** * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712 * signature. */ function eip712Domain() external view returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions );}
File 3 of 19 : ERC20.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)pragma solidity ^0.8.20;import {IERC20} from "./IERC20.sol";import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";import {Context} from "../../utils/Context.sol";import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";/** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. */abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors { mapping(address account => uint256) private _balances; mapping(address account => mapping(address spender => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `value`. */ function transfer(address to, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _transfer(owner, to, value); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, value); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `value`. * - the caller must have allowance for ``from``'s tokens of at least * `value`. */ function transferFrom(address from, address to, uint256 value) public virtual returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, value); _transfer(from, to, value); return true; } /** * @dev Moves a `value` amount of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _transfer(address from, address to, uint256 value) internal { if (from == address(0)) { revert ERC20InvalidSender(address(0)); } if (to == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(from, to, value); } /** * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from` * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding * this function. * * Emits a {Transfer} event. */ function _update(address from, address to, uint256 value) internal virtual { if (from == address(0)) { // Overflow check required: The rest of the code assumes that totalSupply never overflows _totalSupply += value; } else { uint256 fromBalance = _balances[from]; if (fromBalance < value) { revert ERC20InsufficientBalance(from, fromBalance, value); } unchecked { // Overflow not possible: value <= fromBalance <= totalSupply. _balances[from] = fromBalance - value; } } if (to == address(0)) { unchecked { // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply. _totalSupply -= value; } } else { unchecked { // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256. _balances[to] += value; } } emit Transfer(from, to, value); } /** * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0). * Relies on the `_update` mechanism * * Emits a {Transfer} event with `from` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _mint(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(address(0), account, value); } /** * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply. * Relies on the `_update` mechanism. * * Emits a {Transfer} event with `to` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead */ function _burn(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidSender(address(0)); } _update(account, address(0), value); } /** * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address owner, address spender, uint256 value) internal { _approve(owner, spender, value, true); } /** * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event. * * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any * `Approval` event during `transferFrom` operations. * * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to * true using the following override: * ``` * function _approve(address owner, address spender, uint256 value, bool) internal virtual override { * super._approve(owner, spender, value, true); * } * ``` * * Requirements are the same as {_approve}. */ function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual { if (owner == address(0)) { revert ERC20InvalidApprover(address(0)); } if (spender == address(0)) { revert ERC20InvalidSpender(address(0)); } _allowances[owner][spender] = value; if (emitEvent) { emit Approval(owner, spender, value); } } /** * @dev Updates `owner` s allowance for `spender` based on spent `value`. * * Does not update the allowance value in case of infinite allowance. * Revert if not enough allowance is available. * * Does not emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 value) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { if (currentAllowance < value) { revert ERC20InsufficientAllowance(spender, currentAllowance, value); } unchecked { _approve(owner, spender, currentAllowance - value, false); } } }}
File 4 of 19 : ERC20Burnable.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)pragma solidity ^0.8.20;import {ERC20} from "../ERC20.sol";import {Context} from "../../../utils/Context.sol";/** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys a `value` amount of tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 value) public virtual { _burn(_msgSender(), value); } /** * @dev Destroys a `value` amount of tokens from `account`, deducting from * the caller's allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `value`. */ function burnFrom(address account, uint256 value) public virtual { _spendAllowance(account, _msgSender(), value); _burn(account, value); }}
File 5 of 19 : ERC20Permit.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Permit.sol)pragma solidity ^0.8.20;import {IERC20Permit} from "./IERC20Permit.sol";import {ERC20} from "../ERC20.sol";import {ECDSA} from "../../../utils/cryptography/ECDSA.sol";import {EIP712} from "../../../utils/cryptography/EIP712.sol";import {Nonces} from "../../../utils/Nonces.sol";/** * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712, Nonces { bytes32 private constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev Permit deadline has expired. */ error ERC2612ExpiredSignature(uint256 deadline); /** * @dev Mismatched signature. */ error ERC2612InvalidSigner(address signer, address owner); /** * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`. * * It's a good idea to use the same `name` that is defined as the ERC20 token name. */ constructor(string memory name) EIP712(name, "1") {} /** * @inheritdoc IERC20Permit */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual { if (block.timestamp > deadline) { revert ERC2612ExpiredSignature(deadline); } bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline)); bytes32 hash = _hashTypedDataV4(structHash); address signer = ECDSA.recover(hash, v, r, s); if (signer != owner) { revert ERC2612InvalidSigner(signer, owner); } _approve(owner, spender, value); } /** * @inheritdoc IERC20Permit */ function nonces(address owner) public view virtual override(IERC20Permit, Nonces) returns (uint256) { return super.nonces(owner); } /** * @inheritdoc IERC20Permit */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view virtual returns (bytes32) { return _domainSeparatorV4(); }}
File 6 of 19 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)pragma solidity ^0.8.20;import {IERC20} from "../IERC20.sol";/** * @dev Interface for the optional metadata functions from the ERC20 standard. */interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8);}
File 7 of 19 : IERC20Permit.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)pragma solidity ^0.8.20;/** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. * * CAUTION: See Security Considerations above. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32);}
File 8 of 19 : IERC20.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)pragma solidity ^0.8.20;/** * @dev Interface of the ERC20 standard as defined in the EIP. */interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 value) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets a `value` amount of tokens as the allowance of `spender` over the * caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 value) external returns (bool);}
File 9 of 19 : Context.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)pragma solidity ^0.8.20;/** * @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) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; }}
File 10 of 19 : ECDSA.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)pragma solidity ^0.8.20;/** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS } /** * @dev The signature derives the `address(0)`. */ error ECDSAInvalidSignature(); /** * @dev The signature has an invalid length. */ error ECDSAInvalidSignatureLength(uint256 length); /** * @dev The signature has an S value that is in the upper half order. */ error ECDSAInvalidSignatureS(bytes32 s); /** * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not * return address(0) without also returning an error description. Errors are documented using an enum (error type) * and a bytes32 providing additional information about the error. * * If no error is returned, then the address can be used for verification purposes. * * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length)); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] */ function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) { unchecked { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); // We do not check for an overflow here since the shift operation results in 0 or 1. uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError, bytes32) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS, s); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature, bytes32(0)); } return (signer, RecoverError.NoError, bytes32(0)); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s); _throwError(error, errorArg); return recovered; } /** * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided. */ function _throwError(RecoverError error, bytes32 errorArg) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert ECDSAInvalidSignature(); } else if (error == RecoverError.InvalidSignatureLength) { revert ECDSAInvalidSignatureLength(uint256(errorArg)); } else if (error == RecoverError.InvalidSignatureS) { revert ECDSAInvalidSignatureS(errorArg); } }}
File 11 of 19 : EIP712.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol)pragma solidity ^0.8.20;import {MessageHashUtils} from "./MessageHashUtils.sol";import {ShortStrings, ShortString} from "../ShortStrings.sol";import {IERC5267} from "../../interfaces/IERC5267.sol";/** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the * separator from the immutable values, which is cheaper than accessing a cached version in cold storage. * * @custom:oz-upgrades-unsafe-allow state-variable-immutable */abstract contract EIP712 is IERC5267 { using ShortStrings for *; bytes32 private constant TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to // invalidate the cached domain separator if the chain id changes. bytes32 private immutable _cachedDomainSeparator; uint256 private immutable _cachedChainId; address private immutable _cachedThis; bytes32 private immutable _hashedName; bytes32 private immutable _hashedVersion; ShortString private immutable _name; ShortString private immutable _version; string private _nameFallback; string private _versionFallback; /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ constructor(string memory name, string memory version) { _name = name.toShortStringWithFallback(_nameFallback); _version = version.toShortStringWithFallback(_versionFallback); _hashedName = keccak256(bytes(name)); _hashedVersion = keccak256(bytes(version)); _cachedChainId = block.chainid; _cachedDomainSeparator = _buildDomainSeparator(); _cachedThis = address(this); } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _cachedThis && block.chainid == _cachedChainId) { return _cachedDomainSeparator; } else { return _buildDomainSeparator(); } } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash); } /** * @dev See {IERC-5267}. */ function eip712Domain() public view virtual returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ) { return ( hex"0f", // 01111 _EIP712Name(), _EIP712Version(), block.chainid, address(this), bytes32(0), new uint256[](0) ); } /** * @dev The name parameter for the EIP712 domain. * * NOTE: By default this function reads _name which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Name() internal view returns (string memory) { return _name.toStringWithFallback(_nameFallback); } /** * @dev The version parameter for the EIP712 domain. * * NOTE: By default this function reads _version which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Version() internal view returns (string memory) { return _version.toStringWithFallback(_versionFallback); }}
File 12 of 19 : MessageHashUtils.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)pragma solidity ^0.8.20;import {Strings} from "../Strings.sol";/** * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing. * * The library provides methods for generating a hash of a message that conforms to the * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712] * specifications. */library MessageHashUtils { /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing a bytes32 `messageHash` with * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with * keccak256, although any bytes32 value can be safely used because the final digest will * be re-hashed. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20) } } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing an arbitrary `message` with * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) { return keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message)); } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x00` (data with intended validator). * * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended * `validator` address. Then hashing the result. * * See {ECDSA-recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked(hex"19_00", validator, data)); } /** * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`). * * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with * `\x19\x01` and hashing the result. It corresponds to the hash signed by the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712. * * See {ECDSA-recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, hex"19_01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) digest := keccak256(ptr, 0x42) } }}
File 13 of 19 : Math.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)pragma solidity ^0.8.20;/** * @dev Standard math utilities missing in the Solidity language. */library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; }}
File 14 of 19 : SignedMath.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)pragma solidity ^0.8.20;/** * @dev Standard signed math utilities missing in the Solidity language. */library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } }}
File 15 of 19 : Nonces.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)pragma solidity ^0.8.20;/** * @dev Provides tracking nonces for addresses. Nonces will only increment. */abstract contract Nonces { /** * @dev The nonce used for an `account` is not the expected current nonce. */ error InvalidAccountNonce(address account, uint256 currentNonce); mapping(address account => uint256) private _nonces; /** * @dev Returns the next unused nonce for an address. */ function nonces(address owner) public view virtual returns (uint256) { return _nonces[owner]; } /** * @dev Consumes a nonce. * * Returns the current value and increments nonce. */ function _useNonce(address owner) internal virtual returns (uint256) { // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be // decremented or reset. This guarantees that the nonce never overflows. unchecked { // It is important to do x++ and not ++x here. return _nonces[owner]++; } } /** * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`. */ function _useCheckedNonce(address owner, uint256 nonce) internal virtual { uint256 current = _useNonce(owner); if (nonce != current) { revert InvalidAccountNonce(owner, current); } }}
File 16 of 19 : ShortStrings.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol)pragma solidity ^0.8.20;import {StorageSlot} from "./StorageSlot.sol";// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |// | length | 0x BB |type ShortString is bytes32;/** * @dev This library provides functions to convert short memory strings * into a `ShortString` type that can be used as an immutable variable. * * Strings of arbitrary length can be optimized using this library if * they are short enough (up to 31 bytes) by packing them with their * length (1 byte) in a single EVM word (32 bytes). Additionally, a * fallback mechanism can be used for every other case. * * Usage example: * * ```solidity * contract Named { * using ShortStrings for *; * * ShortString private immutable _name; * string private _nameFallback; * * constructor(string memory contractName) { * _name = contractName.toShortStringWithFallback(_nameFallback); * } * * function name() external view returns (string memory) { * return _name.toStringWithFallback(_nameFallback); * } * } * ``` */library ShortStrings { // Used as an identifier for strings longer than 31 bytes. bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF; error StringTooLong(string str); error InvalidShortString(); /** * @dev Encode a string of at most 31 chars into a `ShortString`. * * This will trigger a `StringTooLong` error is the input string is too long. */ function toShortString(string memory str) internal pure returns (ShortString) { bytes memory bstr = bytes(str); if (bstr.length > 31) { revert StringTooLong(str); } return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length)); } /** * @dev Decode a `ShortString` back to a "normal" string. */ function toString(ShortString sstr) internal pure returns (string memory) { uint256 len = byteLength(sstr); // using `new string(len)` would work locally but is not memory safe. string memory str = new string(32); /// @solidity memory-safe-assembly assembly { mstore(str, len) mstore(add(str, 0x20), sstr) } return str; } /** * @dev Return the length of a `ShortString`. */ function byteLength(ShortString sstr) internal pure returns (uint256) { uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF; if (result > 31) { revert InvalidShortString(); } return result; } /** * @dev Encode a string into a `ShortString`, or write it to storage if it is too long. */ function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) { if (bytes(value).length < 32) { return toShortString(value); } else { StorageSlot.getStringSlot(store).value = value; return ShortString.wrap(FALLBACK_SENTINEL); } } /** * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}. */ function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return toString(value); } else { return store; } } /** * @dev Return the length of a string that was encoded to `ShortString` or written to storage using * {setWithFallback}. * * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of * actual characters as the UTF-8 encoding of a single character can span over multiple bytes. */ function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return byteLength(value); } else { return bytes(store).length; } }}
File 17 of 19 : StorageSlot.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.pragma solidity ^0.8.20;/** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` */library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } }}
File 18 of 19 : Strings.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)pragma solidity ^0.8.20;import {Math} from "./math/Math.sol";import {SignedMath} from "./math/SignedMath.sol";/** * @dev String operations. */library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); }}
File 19 of 19 : BlazeERC20.sol
// SPDX-License-Identifier: MITpragma solidity ^0.8.17;import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol";import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";/** * Reward token contract to be used by the blaze protocol. * The entire amount is minted by the main blaze contract * (Blaze.sol - which is the owner of this contract) * directly to an account when it claims rewards. */contract BlazeERC20 is ERC20Permit, ERC20Burnable { /** * The address of the Blaze.sol contract instance. */ address public immutable owner; /** * Sets the owner address. * Called from within the Blaze.sol constructor. */ constructor() ERC20("Titan Blaze", "BLAZE") ERC20Permit("Titan Blaze") { owner = _msgSender(); } /** * The total supply is naturally capped by the distribution algorithm * implemented by the main blaze contract, however an additional check * that will never be triggered is added to reassure the reader. * * @param account the address of the reward token reciever * @param amount wei to be minted */ function mintReward(address account, uint256 amount) external { require(_msgSender() == owner, "Blaze: caller is not Blaze contract."); _mint(account, amount); }}
Settings
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "paris", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {}}
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
- JSON Format
- RAW/Text Format
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ECDSAInvalidSignature","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ECDSAInvalidSignatureLength","type":"error"},{"inputs":[{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"ECDSAInvalidSignatureS","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"ERC2612ExpiredSignature","type":"error"},{"inputs":[{"internalType":"address","name":"signer","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC2612InvalidSigner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"currentNonce","type":"uint256"}],"name":"InvalidAccountNonce","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mintReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","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":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
Decompile Bytecode Switch to Opcodes View
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
Deployed Bytecode
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
Loading...
Loading
Loading...
Loading
[Download: CSV Export ]
[Download: CSV Export ]
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.