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Latest 25 from a total of 24,643 transactions
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| Approve | 92696633 | 47 mins ago | IN | 0 BNB | 0.0000031 | ||||
| Approve | 92693735 | 1 hr ago | IN | 0 BNB | 0.0000014 | ||||
| Approve | 92635742 | 8 hrs ago | IN | 0 BNB | 0.00000126 | ||||
| Approve | 92588314 | 14 hrs ago | IN | 0 BNB | 0.0000023 | ||||
| Approve | 92577131 | 15 hrs ago | IN | 0 BNB | 0.0000023 | ||||
| Approve | 92491514 | 26 hrs ago | IN | 0 BNB | 0.00000464 | ||||
| Approve | 92461425 | 30 hrs ago | IN | 0 BNB | 0.00000127 | ||||
| Approve | 92438406 | 33 hrs ago | IN | 0 BNB | 0.00000261 | ||||
| Approve | 92390941 | 39 hrs ago | IN | 0 BNB | 0.00000304 | ||||
| Approve | 92366434 | 42 hrs ago | IN | 0 BNB | 0.00000464 | ||||
| Approve | 92345402 | 44 hrs ago | IN | 0 BNB | 0.00000132 | ||||
| Approve | 92328982 | 46 hrs ago | IN | 0 BNB | 0.0000012 | ||||
| Approve | 92328765 | 46 hrs ago | IN | 0 BNB | 0.0000012 | ||||
| Approve | 92328522 | 46 hrs ago | IN | 0 BNB | 0.00000131 | ||||
| Approve | 92314834 | 2 days ago | IN | 0 BNB | 0.00000463 | ||||
| Approve | 92312405 | 2 days ago | IN | 0 BNB | 0.00000126 | ||||
| Approve | 92282898 | 2 days ago | IN | 0 BNB | 0.0000023 | ||||
| Approve | 92210420 | 2 days ago | IN | 0 BNB | 0.0000013 | ||||
| Approve | 92198210 | 2 days ago | IN | 0 BNB | 0.00000483 | ||||
| Approve | 92128579 | 2 days ago | IN | 0 BNB | 0.00000132 | ||||
| Approve | 92120116 | 3 days ago | IN | 0 BNB | 0.00000246 | ||||
| Approve | 92036894 | 3 days ago | IN | 0 BNB | 0.00000173 | ||||
| Approve | 92036845 | 3 days ago | IN | 0 BNB | 0.00000133 | ||||
| Approve | 91984449 | 3 days ago | IN | 0 BNB | 0.0000023 | ||||
| Approve | 91910849 | 4 days ago | IN | 0 BNB | 0.00000137 |
Cross-Chain Transactions
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Contract Name:
Token
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 420 runs
Other Settings:
prague EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.28;
import {ERC20} from "solady/tokens/ERC20.sol";
contract Token is ERC20 {
string internal _name;
string internal _symbol;
constructor(address owner_, uint256 totalSupply_, string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_mint(owner_, totalSupply_);
}
function name() public view override returns (string memory) {
return _name;
}
function symbol() public view override returns (string memory) {
return _symbol;
}
function decimals() public pure override returns (uint8) {
return 18;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC20 + EIP-2612 implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol)
///
/// @dev Note:
/// - The ERC20 standard allows minting and transferring to and from the zero address,
/// minting and transferring zero tokens, as well as self-approvals.
/// For performance, this implementation WILL NOT revert for such actions.
/// Please add any checks with overrides if desired.
/// - The `permit` function uses the ecrecover precompile (0x1).
///
/// If you are overriding:
/// - NEVER violate the ERC20 invariant:
/// the total sum of all balances must be equal to `totalSupply()`.
/// - Check that the overridden function is actually used in the function you want to
/// change the behavior of. Much of the code has been manually inlined for performance.
abstract contract ERC20 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The total supply has overflowed.
error TotalSupplyOverflow();
/// @dev The allowance has overflowed.
error AllowanceOverflow();
/// @dev The allowance has underflowed.
error AllowanceUnderflow();
/// @dev Insufficient balance.
error InsufficientBalance();
/// @dev Insufficient allowance.
error InsufficientAllowance();
/// @dev The permit is invalid.
error InvalidPermit();
/// @dev The permit has expired.
error PermitExpired();
/// @dev The allowance of Permit2 is fixed at infinity.
error Permit2AllowanceIsFixedAtInfinity();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Emitted when `amount` tokens is transferred from `from` to `to`.
event Transfer(address indexed from, address indexed to, uint256 amount);
/// @dev Emitted when `amount` tokens is approved by `owner` to be used by `spender`.
event Approval(address indexed owner, address indexed spender, uint256 amount);
/// @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;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The storage slot for the total supply.
uint256 private constant _TOTAL_SUPPLY_SLOT = 0x05345cdf77eb68f44c;
/// @dev The balance slot of `owner` is given by:
/// ```
/// mstore(0x0c, _BALANCE_SLOT_SEED)
/// mstore(0x00, owner)
/// let balanceSlot := keccak256(0x0c, 0x20)
/// ```
uint256 private constant _BALANCE_SLOT_SEED = 0x87a211a2;
/// @dev The allowance slot of (`owner`, `spender`) is given by:
/// ```
/// mstore(0x20, spender)
/// mstore(0x0c, _ALLOWANCE_SLOT_SEED)
/// mstore(0x00, owner)
/// let allowanceSlot := keccak256(0x0c, 0x34)
/// ```
uint256 private constant _ALLOWANCE_SLOT_SEED = 0x7f5e9f20;
/// @dev The nonce slot of `owner` is given by:
/// ```
/// mstore(0x0c, _NONCES_SLOT_SEED)
/// mstore(0x00, owner)
/// let nonceSlot := keccak256(0x0c, 0x20)
/// ```
uint256 private constant _NONCES_SLOT_SEED = 0x38377508;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev `(_NONCES_SLOT_SEED << 16) | 0x1901`.
uint256 private constant _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX = 0x383775081901;
/// @dev `keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")`.
bytes32 private constant _DOMAIN_TYPEHASH =
0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;
/// @dev `keccak256("1")`.
/// If you need to use a different version, override `_versionHash`.
bytes32 private constant _DEFAULT_VERSION_HASH =
0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;
/// @dev `keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")`.
bytes32 private constant _PERMIT_TYPEHASH =
0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
/// @dev The canonical Permit2 address.
/// For signature-based allowance granting for single transaction ERC20 `transferFrom`.
/// Enabled by default. To disable, override `_givePermit2InfiniteAllowance()`.
/// [Github](https://github.com/Uniswap/permit2)
/// [Etherscan](https://etherscan.io/address/0x000000000022D473030F116dDEE9F6B43aC78BA3)
address internal constant _PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC20 METADATA */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the name of the token.
function name() public view virtual returns (string memory);
/// @dev Returns the symbol of the token.
function symbol() public view virtual returns (string memory);
/// @dev Returns the decimals places of the token.
function decimals() public view virtual returns (uint8) {
return 18;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC20 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the amount of tokens in existence.
function totalSupply() public view virtual returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
result := sload(_TOTAL_SUPPLY_SLOT)
}
}
/// @dev Returns the amount of tokens owned by `owner`.
function balanceOf(address owner) public view virtual returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _BALANCE_SLOT_SEED)
mstore(0x00, owner)
result := sload(keccak256(0x0c, 0x20))
}
}
/// @dev Returns the amount of tokens that `spender` can spend on behalf of `owner`.
function allowance(address owner, address spender)
public
view
virtual
returns (uint256 result)
{
if (_givePermit2InfiniteAllowance()) {
if (spender == _PERMIT2) return type(uint256).max;
}
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, spender)
mstore(0x0c, _ALLOWANCE_SLOT_SEED)
mstore(0x00, owner)
result := sload(keccak256(0x0c, 0x34))
}
}
/// @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
///
/// Emits a {Approval} event.
function approve(address spender, uint256 amount) public virtual returns (bool) {
if (_givePermit2InfiniteAllowance()) {
/// @solidity memory-safe-assembly
assembly {
// If `spender == _PERMIT2 && amount != type(uint256).max`.
if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(amount)))) {
mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
revert(0x1c, 0x04)
}
}
}
/// @solidity memory-safe-assembly
assembly {
// Compute the allowance slot and store the amount.
mstore(0x20, spender)
mstore(0x0c, _ALLOWANCE_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x34), amount)
// Emit the {Approval} event.
mstore(0x00, amount)
log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, caller(), shr(96, mload(0x2c)))
}
return true;
}
/// @dev Transfer `amount` tokens from the caller to `to`.
///
/// Requirements:
/// - `from` must at least have `amount`.
///
/// Emits a {Transfer} event.
function transfer(address to, uint256 amount) public virtual returns (bool) {
_beforeTokenTransfer(msg.sender, to, amount);
/// @solidity memory-safe-assembly
assembly {
// Compute the balance slot and load its value.
mstore(0x0c, _BALANCE_SLOT_SEED)
mstore(0x00, caller())
let fromBalanceSlot := keccak256(0x0c, 0x20)
let fromBalance := sload(fromBalanceSlot)
// Revert if insufficient balance.
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated balance.
sstore(fromBalanceSlot, sub(fromBalance, amount))
// Compute the balance slot of `to`.
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x20)
// Add and store the updated balance of `to`.
// Will not overflow because the sum of all user balances
// cannot exceed the maximum uint256 value.
sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
// Emit the {Transfer} event.
mstore(0x20, amount)
log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, caller(), shr(96, mload(0x0c)))
}
_afterTokenTransfer(msg.sender, to, amount);
return true;
}
/// @dev Transfers `amount` tokens from `from` to `to`.
///
/// Note: Does not update the allowance if it is the maximum uint256 value.
///
/// Requirements:
/// - `from` must at least have `amount`.
/// - The caller must have at least `amount` of allowance to transfer the tokens of `from`.
///
/// Emits a {Transfer} event.
function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
_beforeTokenTransfer(from, to, amount);
// Code duplication is for zero-cost abstraction if possible.
if (_givePermit2InfiniteAllowance()) {
/// @solidity memory-safe-assembly
assembly {
let from_ := shl(96, from)
if iszero(eq(caller(), _PERMIT2)) {
// Compute the allowance slot and load its value.
mstore(0x20, caller())
mstore(0x0c, or(from_, _ALLOWANCE_SLOT_SEED))
let allowanceSlot := keccak256(0x0c, 0x34)
let allowance_ := sload(allowanceSlot)
// If the allowance is not the maximum uint256 value.
if not(allowance_) {
// Revert if the amount to be transferred exceeds the allowance.
if gt(amount, allowance_) {
mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated allowance.
sstore(allowanceSlot, sub(allowance_, amount))
}
}
// Compute the balance slot and load its value.
mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
let fromBalanceSlot := keccak256(0x0c, 0x20)
let fromBalance := sload(fromBalanceSlot)
// Revert if insufficient balance.
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated balance.
sstore(fromBalanceSlot, sub(fromBalance, amount))
// Compute the balance slot of `to`.
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x20)
// Add and store the updated balance of `to`.
// Will not overflow because the sum of all user balances
// cannot exceed the maximum uint256 value.
sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
// Emit the {Transfer} event.
mstore(0x20, amount)
log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
}
} else {
/// @solidity memory-safe-assembly
assembly {
let from_ := shl(96, from)
// Compute the allowance slot and load its value.
mstore(0x20, caller())
mstore(0x0c, or(from_, _ALLOWANCE_SLOT_SEED))
let allowanceSlot := keccak256(0x0c, 0x34)
let allowance_ := sload(allowanceSlot)
// If the allowance is not the maximum uint256 value.
if not(allowance_) {
// Revert if the amount to be transferred exceeds the allowance.
if gt(amount, allowance_) {
mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated allowance.
sstore(allowanceSlot, sub(allowance_, amount))
}
// Compute the balance slot and load its value.
mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
let fromBalanceSlot := keccak256(0x0c, 0x20)
let fromBalance := sload(fromBalanceSlot)
// Revert if insufficient balance.
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated balance.
sstore(fromBalanceSlot, sub(fromBalance, amount))
// Compute the balance slot of `to`.
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x20)
// Add and store the updated balance of `to`.
// Will not overflow because the sum of all user balances
// cannot exceed the maximum uint256 value.
sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
// Emit the {Transfer} event.
mstore(0x20, amount)
log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
}
}
_afterTokenTransfer(from, to, amount);
return true;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EIP-2612 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev For more performance, override to return the constant value
/// of `keccak256(bytes(name()))` if `name()` will never change.
function _constantNameHash() internal view virtual returns (bytes32 result) {}
/// @dev If you need a different value, override this function.
function _versionHash() internal view virtual returns (bytes32 result) {
result = _DEFAULT_VERSION_HASH;
}
/// @dev For inheriting contracts to increment the nonce.
function _incrementNonce(address owner) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x0c, _NONCES_SLOT_SEED)
mstore(0x00, owner)
let nonceSlot := keccak256(0x0c, 0x20)
sstore(nonceSlot, add(1, sload(nonceSlot)))
}
}
/// @dev Returns the current nonce for `owner`.
/// This value is used to compute the signature for EIP-2612 permit.
function nonces(address owner) public view virtual returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
// Compute the nonce slot and load its value.
mstore(0x0c, _NONCES_SLOT_SEED)
mstore(0x00, owner)
result := sload(keccak256(0x0c, 0x20))
}
}
/// @dev Sets `value` as the allowance of `spender` over the tokens of `owner`,
/// authorized by a signed approval by `owner`.
///
/// Emits a {Approval} event.
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) public virtual {
if (_givePermit2InfiniteAllowance()) {
/// @solidity memory-safe-assembly
assembly {
// If `spender == _PERMIT2 && value != type(uint256).max`.
if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(value)))) {
mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
revert(0x1c, 0x04)
}
}
}
bytes32 nameHash = _constantNameHash();
// We simply calculate it on-the-fly to allow for cases where the `name` may change.
if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
bytes32 versionHash = _versionHash();
/// @solidity memory-safe-assembly
assembly {
// Revert if the block timestamp is greater than `deadline`.
if gt(timestamp(), deadline) {
mstore(0x00, 0x1a15a3cc) // `PermitExpired()`.
revert(0x1c, 0x04)
}
let m := mload(0x40) // Grab the free memory pointer.
// Clean the upper 96 bits.
owner := shr(96, shl(96, owner))
spender := shr(96, shl(96, spender))
// Compute the nonce slot and load its value.
mstore(0x0e, _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX)
mstore(0x00, owner)
let nonceSlot := keccak256(0x0c, 0x20)
let nonceValue := sload(nonceSlot)
// Prepare the domain separator.
mstore(m, _DOMAIN_TYPEHASH)
mstore(add(m, 0x20), nameHash)
mstore(add(m, 0x40), versionHash)
mstore(add(m, 0x60), chainid())
mstore(add(m, 0x80), address())
mstore(0x2e, keccak256(m, 0xa0))
// Prepare the struct hash.
mstore(m, _PERMIT_TYPEHASH)
mstore(add(m, 0x20), owner)
mstore(add(m, 0x40), spender)
mstore(add(m, 0x60), value)
mstore(add(m, 0x80), nonceValue)
mstore(add(m, 0xa0), deadline)
mstore(0x4e, keccak256(m, 0xc0))
// Prepare the ecrecover calldata.
mstore(0x00, keccak256(0x2c, 0x42))
mstore(0x20, and(0xff, v))
mstore(0x40, r)
mstore(0x60, s)
let t := staticcall(gas(), 1, 0x00, 0x80, 0x20, 0x20)
// If the ecrecover fails, the returndatasize will be 0x00,
// `owner` will be checked if it equals the hash at 0x00,
// which evaluates to false (i.e. 0), and we will revert.
// If the ecrecover succeeds, the returndatasize will be 0x20,
// `owner` will be compared against the returned address at 0x20.
if iszero(eq(mload(returndatasize()), owner)) {
mstore(0x00, 0xddafbaef) // `InvalidPermit()`.
revert(0x1c, 0x04)
}
// Increment and store the updated nonce.
sstore(nonceSlot, add(nonceValue, t)) // `t` is 1 if ecrecover succeeds.
// Compute the allowance slot and store the value.
// The `owner` is already at slot 0x20.
mstore(0x40, or(shl(160, _ALLOWANCE_SLOT_SEED), spender))
sstore(keccak256(0x2c, 0x34), value)
// Emit the {Approval} event.
log3(add(m, 0x60), 0x20, _APPROVAL_EVENT_SIGNATURE, owner, spender)
mstore(0x40, m) // Restore the free memory pointer.
mstore(0x60, 0) // Restore the zero pointer.
}
}
/// @dev Returns the EIP-712 domain separator for the EIP-2612 permit.
function DOMAIN_SEPARATOR() public view virtual returns (bytes32 result) {
bytes32 nameHash = _constantNameHash();
// We simply calculate it on-the-fly to allow for cases where the `name` may change.
if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
bytes32 versionHash = _versionHash();
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Grab the free memory pointer.
mstore(m, _DOMAIN_TYPEHASH)
mstore(add(m, 0x20), nameHash)
mstore(add(m, 0x40), versionHash)
mstore(add(m, 0x60), chainid())
mstore(add(m, 0x80), address())
result := keccak256(m, 0xa0)
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL MINT FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Mints `amount` tokens to `to`, increasing the total supply.
///
/// Emits a {Transfer} event.
function _mint(address to, uint256 amount) internal virtual {
_beforeTokenTransfer(address(0), to, amount);
/// @solidity memory-safe-assembly
assembly {
let totalSupplyBefore := sload(_TOTAL_SUPPLY_SLOT)
let totalSupplyAfter := add(totalSupplyBefore, amount)
// Revert if the total supply overflows.
if lt(totalSupplyAfter, totalSupplyBefore) {
mstore(0x00, 0xe5cfe957) // `TotalSupplyOverflow()`.
revert(0x1c, 0x04)
}
// Store the updated total supply.
sstore(_TOTAL_SUPPLY_SLOT, totalSupplyAfter)
// Compute the balance slot and load its value.
mstore(0x0c, _BALANCE_SLOT_SEED)
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x20)
// Add and store the updated balance.
sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
// Emit the {Transfer} event.
mstore(0x20, amount)
log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, mload(0x0c)))
}
_afterTokenTransfer(address(0), to, amount);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL BURN FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Burns `amount` tokens from `from`, reducing the total supply.
///
/// Emits a {Transfer} event.
function _burn(address from, uint256 amount) internal virtual {
_beforeTokenTransfer(from, address(0), amount);
/// @solidity memory-safe-assembly
assembly {
// Compute the balance slot and load its value.
mstore(0x0c, _BALANCE_SLOT_SEED)
mstore(0x00, from)
let fromBalanceSlot := keccak256(0x0c, 0x20)
let fromBalance := sload(fromBalanceSlot)
// Revert if insufficient balance.
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated balance.
sstore(fromBalanceSlot, sub(fromBalance, amount))
// Subtract and store the updated total supply.
sstore(_TOTAL_SUPPLY_SLOT, sub(sload(_TOTAL_SUPPLY_SLOT), amount))
// Emit the {Transfer} event.
mstore(0x00, amount)
log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), 0)
}
_afterTokenTransfer(from, address(0), amount);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL TRANSFER FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Moves `amount` of tokens from `from` to `to`.
function _transfer(address from, address to, uint256 amount) internal virtual {
_beforeTokenTransfer(from, to, amount);
/// @solidity memory-safe-assembly
assembly {
let from_ := shl(96, from)
// Compute the balance slot and load its value.
mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
let fromBalanceSlot := keccak256(0x0c, 0x20)
let fromBalance := sload(fromBalanceSlot)
// Revert if insufficient balance.
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated balance.
sstore(fromBalanceSlot, sub(fromBalance, amount))
// Compute the balance slot of `to`.
mstore(0x00, to)
let toBalanceSlot := keccak256(0x0c, 0x20)
// Add and store the updated balance of `to`.
// Will not overflow because the sum of all user balances
// cannot exceed the maximum uint256 value.
sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
// Emit the {Transfer} event.
mstore(0x20, amount)
log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
}
_afterTokenTransfer(from, to, amount);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL ALLOWANCE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Updates the allowance of `owner` for `spender` based on spent `amount`.
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
if (_givePermit2InfiniteAllowance()) {
if (spender == _PERMIT2) return; // Do nothing, as allowance is infinite.
}
/// @solidity memory-safe-assembly
assembly {
// Compute the allowance slot and load its value.
mstore(0x20, spender)
mstore(0x0c, _ALLOWANCE_SLOT_SEED)
mstore(0x00, owner)
let allowanceSlot := keccak256(0x0c, 0x34)
let allowance_ := sload(allowanceSlot)
// If the allowance is not the maximum uint256 value.
if not(allowance_) {
// Revert if the amount to be transferred exceeds the allowance.
if gt(amount, allowance_) {
mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
revert(0x1c, 0x04)
}
// Subtract and store the updated allowance.
sstore(allowanceSlot, sub(allowance_, amount))
}
}
}
/// @dev Sets `amount` as the allowance of `spender` over the tokens of `owner`.
///
/// Emits a {Approval} event.
function _approve(address owner, address spender, uint256 amount) internal virtual {
if (_givePermit2InfiniteAllowance()) {
/// @solidity memory-safe-assembly
assembly {
// If `spender == _PERMIT2 && amount != type(uint256).max`.
if iszero(or(xor(shr(96, shl(96, spender)), _PERMIT2), iszero(not(amount)))) {
mstore(0x00, 0x3f68539a) // `Permit2AllowanceIsFixedAtInfinity()`.
revert(0x1c, 0x04)
}
}
}
/// @solidity memory-safe-assembly
assembly {
let owner_ := shl(96, owner)
// Compute the allowance slot and store the amount.
mstore(0x20, spender)
mstore(0x0c, or(owner_, _ALLOWANCE_SLOT_SEED))
sstore(keccak256(0x0c, 0x34), amount)
// Emit the {Approval} event.
mstore(0x00, amount)
log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, shr(96, owner_), shr(96, mload(0x2c)))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* HOOKS TO OVERRIDE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Hook that is called before any transfer of tokens.
/// This includes minting and burning.
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/// @dev Hook that is called after any transfer of tokens.
/// This includes minting and burning.
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PERMIT2 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns whether to fix the Permit2 contract's allowance at infinity.
///
/// This value should be kept constant after contract initialization,
/// or else the actual allowance values may not match with the {Approval} events.
/// For best performance, return a compile-time constant for zero-cost abstraction.
function _givePermit2InfiniteAllowance() internal view virtual returns (bool) {
return true;
}
}{
"remappings": [
"solmate/=lib/solmate/src/",
"forge-std/=lib/forge-std/src/",
"solady/=lib/solady/src/",
"ERC721A/=lib/ERC721A/"
],
"optimizer": {
"enabled": true,
"runs": 420
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "prague",
"viaIR": false
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"owner_","type":"address"},{"internalType":"uint256","name":"totalSupply_","type":"uint256"},{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AllowanceOverflow","type":"error"},{"inputs":[],"name":"AllowanceUnderflow","type":"error"},{"inputs":[],"name":"InsufficientAllowance","type":"error"},{"inputs":[],"name":"InsufficientBalance","type":"error"},{"inputs":[],"name":"InvalidPermit","type":"error"},{"inputs":[],"name":"Permit2AllowanceIsFixedAtInfinity","type":"error"},{"inputs":[],"name":"PermitExpired","type":"error"},{"inputs":[],"name":"TotalSupplyOverflow","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":"amount","type":"uint256"}],"name":"Approval","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":"amount","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"result","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":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","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":"result","type":"uint256"}],"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":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","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":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Deployed Bytecode
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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] : owner_ (address): 0x0D9c95d66815621da95d90cAC989911A5df1B3C4
Arg [1] : totalSupply_ (uint256): 1000000000000000000000000000
Arg [2] : name_ (string): Semantic Layer
Arg [3] : symbol_ (string): 42
-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000d9c95d66815621da95d90cac989911a5df1b3c4
Arg [1] : 0000000000000000000000000000000000000000033b2e3c9fd0803ce8000000
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000e
Arg [5] : 53656d616e746963204c61796572000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [7] : 3432000000000000000000000000000000000000000000000000000000000000
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.