Blocks
Blocks
Uncles
Forked Blocks (Reorgs)
Transactions
Validated
Pending
Tokens
All
Doge
APIs
GraphQL
RPC
Eth RPC
Apps
Mainnet
Mainnets
Dogechain Mainnet
Testnets
Dogechain Testnet
/
Search
/
Search
Connection Lost
New Solidity Smart Contract Verification
Contract Address
The 0x address supplied on contract creation.
Contract Name
Must match the name specified in the code. For example, in
contract MyContract {..}
MyContract
is the contract name.
Include nightly builds
No
Yes
Select yes if you want to show nightly builds.
Compiler
v0.8.26+commit.8a97fa7a
v0.8.25+commit.b61c2a91
v0.8.24+commit.e11b9ed9
v0.8.23+commit.f704f362
v0.8.22+commit.4fc1097e
v0.8.21+commit.d9974bed
v0.8.20+commit.a1b79de6
v0.8.19+commit.7dd6d404
v0.8.18+commit.87f61d96
v0.8.17+commit.8df45f5f
v0.8.16+commit.07a7930e
v0.8.15+commit.e14f2714
v0.8.14+commit.80d49f37
v0.8.13+commit.abaa5c0e
v0.8.12+commit.f00d7308
v0.8.11+commit.d7f03943
v0.8.10+commit.fc410830
v0.8.9+commit.e5eed63a
v0.8.8+commit.dddeac2f
v0.8.7+commit.e28d00a7
v0.8.6+commit.11564f7e
v0.8.5+commit.a4f2e591
v0.8.4+commit.c7e474f2
v0.8.3+commit.8d00100c
v0.8.2+commit.661d1103
v0.8.1+commit.df193b15
v0.8.0+commit.c7dfd78e
v0.7.6+commit.7338295f
v0.7.5+commit.eb77ed08
v0.7.4+commit.3f05b770
v0.7.3+commit.9bfce1f6
v0.7.2+commit.51b20bc0
v0.7.1+commit.f4a555be
v0.7.0+commit.9e61f92b
v0.6.12+commit.27d51765
v0.6.11+commit.5ef660b1
v0.6.10+commit.00c0fcaf
v0.6.9+commit.3e3065ac
v0.6.8+commit.0bbfe453
v0.6.7+commit.b8d736ae
v0.6.6+commit.6c089d02
v0.6.5+commit.f956cc89
v0.6.4+commit.1dca32f3
v0.6.3+commit.8dda9521
v0.6.2+commit.bacdbe57
v0.6.1+commit.e6f7d5a4
v0.6.0+commit.26b70077
v0.5.17+commit.d19bba13
v0.5.16+commit.9c3226ce
v0.5.15+commit.6a57276f
v0.5.14+commit.01f1aaa4
v0.5.13+commit.5b0b510c
v0.5.12+commit.7709ece9
v0.5.11+commit.22be8592
v0.5.10+commit.5a6ea5b1
v0.5.9+commit.c68bc34e
v0.5.8+commit.23d335f2
v0.5.7+commit.6da8b019
v0.5.6+commit.b259423e
v0.5.5+commit.47a71e8f
v0.5.4+commit.9549d8ff
v0.5.3+commit.10d17f24
v0.5.2+commit.1df8f40c
v0.5.1+commit.c8a2cb62
v0.5.0+commit.1d4f565a
v0.4.26+commit.4563c3fc
v0.4.25+commit.59dbf8f1
v0.4.24+commit.e67f0147
v0.4.23+commit.124ca40d
v0.4.22+commit.4cb486ee
v0.4.21+commit.dfe3193c
v0.4.20+commit.3155dd80
v0.4.19+commit.c4cbbb05
v0.4.18+commit.9cf6e910
v0.4.17+commit.bdeb9e52
v0.4.16+commit.d7661dd9
v0.4.15+commit.8b45bddb
v0.4.14+commit.c2215d46
v0.4.13+commit.0fb4cb1a
v0.4.12+commit.194ff033
v0.4.11+commit.68ef5810
v0.4.10+commit.9e8cc01b
The compiler version is specified in
pragma solidity X.X.X
. Use the compiler version rather than the nightly build. If using the Solidity compiler, run
solc —version
to check.
EVM Version
homestead
tangerineWhistle
spuriousDragon
byzantium
constantinople
petersburg
istanbul
berlin
london
default
The EVM version the contract is written for. If the bytecode does not match the version, we try to verify using the latest EVM version.
EVM version details
.
Optimization
No
Yes
If you enabled optimization during compilation, select yes.
Optimization runs
Enter the Solidity Contract Code
// SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/token/ERC20/IERC20.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) 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 `amount` 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 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @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); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ 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 (uint256); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol pragma solidity ^0.8.0; contract ERC20 is Context, IERC20, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; uint256 private _decimals; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The defaut value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor (string memory name_, string memory symbol_,uint256 initialBalance_,uint256 decimals_,address tokenOwner) { _name = name_; _symbol = symbol_; _totalSupply = initialBalance_* 10**decimals_; _balances[tokenOwner] = _totalSupply; _decimals = decimals_; emit Transfer(address(0), tokenOwner, _totalSupply); } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override 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 value {ERC20} uses, unless this function is * 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 override returns (uint256) { return _decimals; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); 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}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } } pragma solidity ^0.8.0; contract CoinToken is ERC20 { constructor( string memory name_, string memory symbol_, uint256 decimals_, uint256 initialBalance_, address tokenOwner_, address payable feeReceiver_ ) payable ERC20(name_, symbol_,initialBalance_,decimals_,tokenOwner_) { payable(feeReceiver_).transfer(msg.value); } }
We recommend using flattened code. This is necessary if your code utilizes a library or inherits dependencies. Use the
POA solidity flattener or the
truffle flattener
.
Try to fetch constructor arguments automatically
No
Yes
ABI-encoded Constructor Arguments (if required by the contract)
0x00000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000001200000000000000000000000000000000000000000000000000000000000f424000000000000000000000000084bcfe42033b7a0561cd8e383e5d7a8ea0f3c3ba00000000000000000000000051e46fddf884518d96ebea18023f7b2d0a82582a000000000000000000000000000000000000000000000000000000000000000c4752494d41434520434f494e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000074752494d41434500000000000000000000000000000000000000000000000000
Add arguments in
ABI hex encoded form
. Constructor arguments are written right to left, and will be found at the end of the input created bytecode. They may also be
parsed here.
Add Contract Libraries
Contract Libraries
Library Name
A library name called in the .sol file. Multiple libraries (up to 5) may be added for each contract. Click the Add Library button to add an additional one.
Library Address
The 0x library address. This can be found in the generated json file or Truffle output (if using truffle).
Library Name
Library Address
Library Name
Library Address
Library Name
Library Address
Library Name
Library Address
Add Library
Loading...
Verify & publish
Cancel
Ok
Ok
Ok
No
Yes