ETH Price: $2,696.94 (-0.00%)

Contract

0x3F66aE0c8E9Fb57f661aF4Ba8C8445D36ec5d7F7
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Token Holdings

Multichain Info

1 address found via
Transaction Hash
Method
Block
From
To
Approve218605612025-02-16 17:50:4714 hrs ago1739728247IN
Cryptify AI: Old CRAI Token
0 ETH0.000044390.95799735
Transfer218484722025-02-15 1:11:232 days ago1739581883IN
Cryptify AI: Old CRAI Token
0 ETH0.000083762.8145053
Transfer218484622025-02-15 1:09:112 days ago1739581751IN
Cryptify AI: Old CRAI Token
0 ETH0.000139162.69502787
Approve218464982025-02-14 18:31:112 days ago1739557871IN
Cryptify AI: Old CRAI Token
0 ETH0.000140643.03187424
Approve218461222025-02-14 17:14:472 days ago1739553287IN
Cryptify AI: Old CRAI Token
0 ETH0.000157113.37025137
Transfer218453232025-02-14 14:33:472 days ago1739543627IN
Cryptify AI: Old CRAI Token
0 ETH0.000060911.2998235
Approve218436782025-02-14 9:01:592 days ago1739523719IN
Cryptify AI: Old CRAI Token
0 ETH0.000048771.05088387
Approve218408642025-02-13 23:34:113 days ago1739489651IN
Cryptify AI: Old CRAI Token
0 ETH0.000031711.3
Approve218407682025-02-13 23:14:593 days ago1739488499IN
Cryptify AI: Old CRAI Token
0 ETH0.000088571.90055032
Approve218402202025-02-13 21:23:593 days ago1739481839IN
Cryptify AI: Old CRAI Token
0 ETH0.000033921.39051833
Approve218398142025-02-13 20:02:233 days ago1739476943IN
Cryptify AI: Old CRAI Token
0 ETH0.000052311.12772955
Approve218371232025-02-13 10:59:473 days ago1739444387IN
Cryptify AI: Old CRAI Token
0 ETH0.00003261.33650778
Approve218356792025-02-13 6:09:114 days ago1739426951IN
Cryptify AI: Old CRAI Token
0 ETH0.000132112.83032277
Approve218346652025-02-13 2:45:234 days ago1739414723IN
Cryptify AI: Old CRAI Token
0 ETH0.000055961.20632669
Approve218330922025-02-12 21:28:474 days ago1739395727IN
Cryptify AI: Old CRAI Token
0 ETH0.000093081.99422378
Approve218328282025-02-12 20:35:594 days ago1739392559IN
Cryptify AI: Old CRAI Token
0 ETH0.000163073.51530102
Approve218326122025-02-12 19:52:354 days ago1739389955IN
Cryptify AI: Old CRAI Token
0 ETH0.000070132.64777477
Approve218325972025-02-12 19:49:354 days ago1739389775IN
Cryptify AI: Old CRAI Token
0 ETH0.000108832.34603019
Transfer218323262025-02-12 18:54:474 days ago1739386487IN
Cryptify AI: Old CRAI Token
0 ETH0.000084981.64586704
Transfer218321792025-02-12 18:25:234 days ago1739384723IN
Cryptify AI: Old CRAI Token
0 ETH0.000186053.60397575
Approve218319912025-02-12 17:47:354 days ago1739382455IN
Cryptify AI: Old CRAI Token
0 ETH0.000240915.19327815
Transfer218318802025-02-12 17:25:234 days ago1739381123IN
Cryptify AI: Old CRAI Token
0 ETH0.000327446.99302645
Approve218317732025-02-12 17:03:594 days ago1739379839IN
Cryptify AI: Old CRAI Token
0 ETH0.000193894.15382842
Approve218309232025-02-12 14:12:474 days ago1739369567IN
Cryptify AI: Old CRAI Token
0 ETH0.000139963.02018159
Approve218300682025-02-12 11:19:594 days ago1739359199IN
Cryptify AI: Old CRAI Token
0 ETH0.000043390.93635955
View all transactions

Latest 1 internal transaction

Advanced mode:
Parent Transaction Hash Block
From
To
208692542024-10-01 7:48:47139 days ago1727768927
Cryptify AI: Old CRAI Token
0.07 ETH
Loading...
Loading

Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x0e2eD4D1...8851E37A2
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
StandardERC20

Compiler Version
v0.8.27+commit.40a35a09

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2024-09-06
*/

// SPDX-License-Identifier: MIT

// File @openzeppelin/contracts/interfaces/[email protected]

// Original license: 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 @openzeppelin/contracts/token/ERC20/[email protected]

// Original license: 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 @openzeppelin/contracts/token/ERC20/extensions/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

/**
 * @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 @openzeppelin/contracts/utils/[email protected]

// Original license: 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 @openzeppelin/contracts/token/ERC20/[email protected]

// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;




/**
 * @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 contracts/token/ERC20/extensions/ERC20Decimals.sol

// Original license: SPDX_License_Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @title ERC20Decimals
 * @dev Extension of ERC20 that adds decimals storage slot.
 */
abstract contract ERC20Decimals is ERC20 {
    // indicates the decimals amount
    uint8 private immutable _decimals;

    /**
     * @dev Sets the value of the `_decimals`.
     * This value is immutable, it can only be set once during construction.
     */
    constructor(uint8 decimals_) {
        _decimals = decimals_;
    }

    /**
     * @inheritdoc IERC20Metadata
     */
    function decimals() public view virtual override returns (uint8) {
        return _decimals;
    }
}


// File contracts/token/ERC20/extensions/ERC20Detailed.sol

// Original license: SPDX_License_Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @title ERC20Detailed
 * @dev Extension of ERC20 and ERC20Decimals.
 */
abstract contract ERC20Detailed is ERC20Decimals {
    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_
    ) ERC20(name_, symbol_) ERC20Decimals(decimals_) {}
}


// File contracts/service/ServicePayer.sol

// Original license: SPDX_License_Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @title IPayable
 */
interface IPayable {
    function pay(string calldata serviceName, bytes calldata signature, address wallet) external payable;
}

/**
 * @title ServicePayer
 * @dev Utility contract to pay the deployment fee. Used only during construction.
 */
abstract contract ServicePayer {
    constructor(address payable receiver, string memory serviceName, bytes memory signature, address wallet) payable {
        IPayable(receiver).pay{value: msg.value}(serviceName, signature, wallet);
    }
}


// File contracts/token/ERC20/StandardERC20.sol

// Original license: SPDX_License_Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @title StandardERC20
 * @dev Implementation of the StandardERC20.
 */
contract StandardERC20 is ERC20Detailed, ServicePayer {
    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_,
        uint256 initialBalance_,
        bytes memory signature_,
        address payable feeReceiver_
    )
        payable
        ERC20Detailed(name_, symbol_, decimals_)
        ServicePayer(feeReceiver_, "StandardERC20", signature_, _msgSender())
    {
        require(initialBalance_ > 0, "Initial supply cannot be zero");

        _mint(_msgSender(), initialBalance_);
    }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint8","name":"decimals_","type":"uint8"},{"internalType":"uint256","name":"initialBalance_","type":"uint256"},{"internalType":"bytes","name":"signature_","type":"bytes"},{"internalType":"address payable","name":"feeReceiver_","type":"address"}],"stateMutability":"payable","type":"constructor"},{"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"},{"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":[{"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":[{"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":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","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"}]

Deployed Bytecode

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

Deployed Bytecode Sourcemap

25012:558:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;13611:91;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;15904:190;;;;;;:::i;:::-;;:::i;:::-;;;1085:14:1;;1078:22;1060:41;;1048:2;1033:18;15904:190:0;920:187:1;14713:99:0;14792:12;;14713:99;;;1258:25:1;;;1246:2;1231:18;14713:99:0;1112:177:1;16672:249:0;;;;;;:::i;:::-;;:::i;23584:100::-;;;1845:4:1;23667:9:0;1833:17:1;1815:36;;1803:2;1788:18;23584:100:0;1673:184:1;14875:118:0;;;;;;:::i;:::-;-1:-1:-1;;;;;14967:18:0;14940:7;14967:18;;;;;;;;;;;;14875:118;13821:95;;;:::i;15198:182::-;;;;;;:::i;:::-;;:::i;15443:142::-;;;;;;:::i;:::-;-1:-1:-1;;;;;15550:18:0;;;15523:7;15550:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;15443:142;13611:91;13656:13;13689:5;13682:12;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;13611:91;:::o;15904:190::-;15977:4;11371:10;16033:31;11371:10;16049:7;16058:5;16033:8;:31::i;:::-;16082:4;16075:11;;;15904:190;;;;;:::o;16672:249::-;16759:4;11371:10;16817:37;16833:4;11371:10;16848:5;16817:15;:37::i;:::-;16865:26;16875:4;16881:2;16885:5;16865:9;:26::i;:::-;-1:-1:-1;16909:4:0;;16672:249;-1:-1:-1;;;;16672:249:0:o;13821:95::-;13868:13;13901:7;13894:14;;;;;:::i;15198:182::-;15267:4;11371:10;15323:27;11371:10;15340:2;15344:5;15323:9;:27::i;20731:130::-;20816:37;20825:5;20832:7;20841:5;20848:4;20816:8;:37::i;:::-;20731:130;;;:::o;22447:487::-;-1:-1:-1;;;;;15550:18:0;;;22547:24;15550:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;-1:-1:-1;;22614:37:0;;22610:317;;22691:5;22672:16;:24;22668:132;;;22724:60;;-1:-1:-1;;;22724:60:0;;-1:-1:-1;;;;;2923:32:1;;22724:60:0;;;2905:51:1;2972:18;;;2965:34;;;3015:18;;;3008:34;;;2878:18;;22724:60:0;;;;;;;;22668:132;22843:57;22852:5;22859:7;22887:5;22868:16;:24;22894:5;22843:8;:57::i;:::-;22536:398;22447:487;;;:::o;17306:308::-;-1:-1:-1;;;;;17390:18:0;;17386:88;;17432:30;;-1:-1:-1;;;17432:30:0;;17459:1;17432:30;;;3199:51:1;3172:18;;17432:30:0;3053:203:1;17386:88:0;-1:-1:-1;;;;;17488:16:0;;17484:88;;17528:32;;-1:-1:-1;;;17528:32:0;;17557:1;17528:32;;;3199:51:1;3172:18;;17528:32:0;3053:203:1;17484:88:0;17582:24;17590:4;17596:2;17600:5;17582:7;:24::i;21712:443::-;-1:-1:-1;;;;;21825:19:0;;21821:91;;21868:32;;-1:-1:-1;;;21868:32:0;;21897:1;21868:32;;;3199:51:1;3172:18;;21868:32:0;3053:203:1;21821:91:0;-1:-1:-1;;;;;21926:21:0;;21922:92;;21971:31;;-1:-1:-1;;;21971:31:0;;21999:1;21971:31;;;3199:51:1;3172:18;;21971:31:0;3053:203:1;21922:92:0;-1:-1:-1;;;;;22024:18:0;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;:35;;;22070:78;;;;22121:7;-1:-1:-1;;;;;22105:31:0;22114:5;-1:-1:-1;;;;;22105:31:0;;22130:5;22105:31;;;;1258:25:1;;1246:2;1231:18;;1112:177;22105:31:0;;;;;;;;21712:443;;;;:::o;17938:1135::-;-1:-1:-1;;;;;18028:18:0;;18024:552;;18182:5;18166:12;;:21;;;;;;;:::i;:::-;;;;-1:-1:-1;18024:552:0;;-1:-1:-1;18024:552:0;;-1:-1:-1;;;;;18242:15:0;;18220:19;18242:15;;;;;;;;;;;18276:19;;;18272:117;;;18323:50;;-1:-1:-1;;;18323:50:0;;-1:-1:-1;;;;;2923:32:1;;18323:50:0;;;2905:51:1;2972:18;;;2965:34;;;3015:18;;;3008:34;;;2878:18;;18323:50:0;2703:345:1;18272:117:0;-1:-1:-1;;;;;18512:15:0;;:9;:15;;;;;;;;;;18530:19;;;;18512:37;;18024:552;-1:-1:-1;;;;;18592:16:0;;18588:435;;18758:12;:21;;;;;;;18588:435;;;-1:-1:-1;;;;;18974:13:0;;:9;:13;;;;;;;;;;:22;;;;;;18588:435;19055:2;-1:-1:-1;;;;;19040:25:0;19049:4;-1:-1:-1;;;;;19040:25:0;;19059:5;19040:25;;;;1258::1;;1246:2;1231:18;;1112:177;19040:25:0;;;;;;;;17938:1135;;;:::o;14:418:1:-;163:2;152:9;145:21;126:4;195:6;189:13;238:6;233:2;222:9;218:18;211:34;297:6;292:2;284:6;280:15;275:2;264:9;260:18;254:50;353:1;348:2;339:6;328:9;324:22;320:31;313:42;423:2;416;412:7;407:2;399:6;395:15;391:29;380:9;376:45;372:54;364:62;;;14:418;;;;:::o;437:173::-;505:20;;-1:-1:-1;;;;;554:31:1;;544:42;;534:70;;600:1;597;590:12;534:70;437:173;;;:::o;615:300::-;683:6;691;744:2;732:9;723:7;719:23;715:32;712:52;;;760:1;757;750:12;712:52;783:29;802:9;783:29;:::i;:::-;773:39;881:2;866:18;;;;853:32;;-1:-1:-1;;;615:300:1:o;1294:374::-;1371:6;1379;1387;1440:2;1428:9;1419:7;1415:23;1411:32;1408:52;;;1456:1;1453;1446:12;1408:52;1479:29;1498:9;1479:29;:::i;:::-;1469:39;;1527:38;1561:2;1550:9;1546:18;1527:38;:::i;:::-;1294:374;;1517:48;;-1:-1:-1;;;1634:2:1;1619:18;;;;1606:32;;1294:374::o;1862:186::-;1921:6;1974:2;1962:9;1953:7;1949:23;1945:32;1942:52;;;1990:1;1987;1980:12;1942:52;2013:29;2032:9;2013:29;:::i;:::-;2003:39;1862:186;-1:-1:-1;;;1862:186:1:o;2053:260::-;2121:6;2129;2182:2;2170:9;2161:7;2157:23;2153:32;2150:52;;;2198:1;2195;2188:12;2150:52;2221:29;2240:9;2221:29;:::i;:::-;2211:39;;2269:38;2303:2;2292:9;2288:18;2269:38;:::i;:::-;2259:48;;2053:260;;;;;:::o;2318:380::-;2397:1;2393:12;;;;2440;;;2461:61;;2515:4;2507:6;2503:17;2493:27;;2461:61;2568:2;2560:6;2557:14;2537:18;2534:38;2531:161;;2614:10;2609:3;2605:20;2602:1;2595:31;2649:4;2646:1;2639:15;2677:4;2674:1;2667:15;2531:161;;2318:380;;;:::o;3261:222::-;3326:9;;;3347:10;;;3344:133;;;3399:10;3394:3;3390:20;3387:1;3380:31;3434:4;3431:1;3424:15;3462:4;3459:1;3452:15

Swarm Source

ipfs://d924743172f5667420310a59a2e807090869ca86b827525fb91a19a12d4c8330

Block Transaction Difficulty Gas Used Reward
View All Blocks Produced

Block Uncle Number Difficulty Gas Used Reward
View All Uncles
Loading...
Loading
Loading...
Loading

OVERVIEW

Cryptify AI is a platform designed to optimize influencer marketing by using AI and Big Data analytics.

Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

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.