ETH Price: $3,265.04 (+3.47%)
 
Transaction Hash
Method
Block
From
To
Approve217412852025-01-31 1:38:5940 mins ago1738287539IN
DeRace: DERC Token
0 ETH0.000173043.71445182
Transfer217412562025-01-31 1:33:1145 mins ago1738287191IN
DeRace: DERC Token
0 ETH0.000116772.1745915
Approve217408372025-01-31 0:08:592 hrs ago1738282139IN
DeRace: DERC Token
0 ETH0.000049532.03807064
Approve217404782025-01-30 22:56:473 hrs ago1738277807IN
DeRace: DERC Token
0 ETH0.000178343.82813719
Transfer217391002025-01-30 18:19:117 hrs ago1738261151IN
DeRace: DERC Token
0 ETH0.000202345.52285902
Transfer217389522025-01-30 17:49:238 hrs ago1738259363IN
DeRace: DERC Token
0 ETH0.000383937.14933664
Approve217367042025-01-30 10:17:4716 hrs ago1738232267IN
DeRace: DERC Token
0 ETH0.000098262.11252937
Approve217365762025-01-30 9:51:5916 hrs ago1738230719IN
DeRace: DERC Token
0 ETH0.000076051.64349694
Approve217305702025-01-29 13:45:3536 hrs ago1738158335IN
DeRace: DERC Token
0 ETH0.000194584.20281898
Approve217303702025-01-29 13:05:1137 hrs ago1738155911IN
DeRace: DERC Token
0 ETH0.000170863.66767933
Approve217296032025-01-29 10:31:1139 hrs ago1738146671IN
DeRace: DERC Token
0 ETH0.000097492.10524512
Approve217251482025-01-28 19:35:352 days ago1738092935IN
DeRace: DERC Token
0 ETH0.000289426.24951321
Transfer217245652025-01-28 17:38:352 days ago1738085915IN
DeRace: DERC Token
0 ETH0.000414058.46085294
Approve217242072025-01-28 16:26:592 days ago1738081619IN
DeRace: DERC Token
0 ETH0.000467710.10193959
Transfer217239292025-01-28 15:30:592 days ago1738078259IN
DeRace: DERC Token
0 ETH0.000480019.81098038
Approve217215122025-01-28 7:24:352 days ago1738049075IN
DeRace: DERC Token
0 ETH0.000229184.92591119
Approve217190652025-01-27 23:12:113 days ago1738019531IN
DeRace: DERC Token
0 ETH0.000126525.20616248
Approve217190552025-01-27 23:10:113 days ago1738019411IN
DeRace: DERC Token
0 ETH0.000127135.23131383
Approve217153122025-01-27 10:37:473 days ago1737974267IN
DeRace: DERC Token
0 ETH0.00041158.84435469
Approve217148002025-01-27 8:54:593 days ago1737968099IN
DeRace: DERC Token
0 ETH0.000319816.8649248
Approve217140032025-01-27 6:15:233 days ago1737958523IN
DeRace: DERC Token
0 ETH0.000286386.1569084
Transfer217123122025-01-27 0:36:354 days ago1737938195IN
DeRace: DERC Token
0 ETH0.000255975.23308373
Approve217069042025-01-26 6:28:474 days ago1737872927IN
DeRace: DERC Token
0 ETH0.000110762.39182328
Approve217064982025-01-26 5:07:114 days ago1737868031IN
DeRace: DERC Token
0 ETH0.000148933.21510979
Transfer217043442025-01-25 21:55:355 days ago1737842135IN
DeRace: DERC Token
0 ETH0.000198514.05737397
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Contract Source Code Verified (Exact Match)

Contract Name:
ERC20

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion, MIT license, Audited
/**
 *Submitted for verification at Etherscan.io on 2021-07-22
*/

// SPDX-License-Identifier: MIT

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) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _setOwner(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() external virtual onlyOwner {
        _setOwner(address(0));
    }

    function transferOwnership(address newOwner) external virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

abstract contract Pausable is Ownable {
    event Paused(address account);

    event Unpaused(address account);

    bool private _paused;

    constructor() {
        _paused = false;
    }

    function paused() public view virtual returns (bool) {
        return _paused;
    }
    
    function pause() external virtual onlyOwner {
        _pause();
    }
    
    function unpause() external virtual onlyOwner {
        _unpause();
    }
    
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

contract ERC20 is Pausable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply = 120e6 ether;
    
    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor() {
        _balances[_msgSender()] = _totalSupply;
    }

    function name() public view virtual returns (string memory) {
        return "DeRace Token";
    }

    function symbol() public view virtual returns (string memory) {
        return "DERC";
    }

    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) external virtual returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external virtual returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external virtual returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) external virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) external virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }
    
    function burn(uint256 amount) external virtual {
        _burn(_msgSender(), amount);
    }

    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");

        _beforeTokenTransfer();

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

  
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer();

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), 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);
    }

    function _beforeTokenTransfer() internal virtual {
        require(!paused(), "ERC20Pausable: token transfer while paused");
    }
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","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":"amount","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":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","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":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://a03967737fe03218be2710ba1357f7994c1c3631c8cdf864d00e7e17f9a07bb1

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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OVERVIEW

DeRace is a complete NFT horse racing ecosystem where you can participate in horse races, breed NFT horses with unique characteristics, build your own NFT hippodrome and make profit while doing it.

Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.