false
true
0

Contract Address Details

0x69b148395Ce0015C13e36BFfBAd63f49EF874E03

Token
Data Token (DTA)
Creator
0xa4884c–b7d500 at 0x7167ed–199506
Balance
0 PLS ( )
Tokens
Fetching tokens...
Transactions
144,872 Transactions
Transfers
60 Transfers
Gas Used
5,604,937,384
Last Balance Update
25855679
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
This contract has been partially verified via Sourcify. View contract in Sourcify repository
Contract name:
DataToken




Optimization enabled
true
Compiler version
v0.4.18+commit.9cf6e910




Optimization runs
200
Verified at
2026-02-05T18:08:53.165224Z

DataToken.sol

pragma solidity ^0.4.18;


contract ERC20 {

    uint256 public totalSupply;

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

    function balanceOf(address who) public view returns (uint256);
    function transfer(address to, uint256 value) public returns (bool);

    function allowance(address owner, address spender) public view returns (uint256);
    function approve(address spender, uint256 value) public returns (bool);
    function transferFrom(address from, address to, uint256 value) public returns (bool);

}


interface TokenRecipient {
    function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public;
}



contract TokenERC20 is ERC20 {
    // Public variables of the token
    string public name;
    string public symbol;
    uint8  public decimals = 18;
    // 18 decimals is the strongly suggested default, avoid changing it

    // Balances
    mapping (address => uint256) balances;
    // Allowances
    mapping (address => mapping (address => uint256)) allowances;


    // ----- Events -----
    event Burn(address indexed from, uint256 value);


    /**
     * Constructor function
     */
    function TokenERC20(uint256 _initialSupply, string _tokenName, string _tokenSymbol, uint8 _decimals) public {
        name = _tokenName;                                   // Set the name for display purposes
        symbol = _tokenSymbol;                               // Set the symbol for display purposes
        decimals = _decimals;

        totalSupply = _initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
        balances[msg.sender] = totalSupply;                // Give the creator all initial tokens
    }

    function balanceOf(address _owner) public view returns(uint256) {
        return balances[_owner];
    }

    function allowance(address _owner, address _spender) public view returns (uint256) {
        return allowances[_owner][_spender];
    }

    /**
     * Internal transfer, only can be called by this contract
     */
    function _transfer(address _from, address _to, uint _value) internal returns(bool) {
        // Prevent transfer to 0x0 address. Use burn() instead
        require(_to != 0x0);
        // Check if the sender has enough
        require(balances[_from] >= _value);
        // Check for overflows
        require(balances[_to] + _value > balances[_to]);
        // Save this for an assertion in the future
        uint previousBalances = balances[_from] + balances[_to];
        // Subtract from the sender
        balances[_from] -= _value;
        // Add the same to the recipient
        balances[_to] += _value;
        Transfer(_from, _to, _value);
        // Asserts are used to use static analysis to find bugs in your code. They should never fail
        assert(balances[_from] + balances[_to] == previousBalances);

        return true;
    }

    /**
     * Transfer tokens
     *
     * Send `_value` tokens to `_to` from your account
     *
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transfer(address _to, uint256 _value) public returns(bool) {
        return _transfer(msg.sender, _to, _value);
    }

    /**
     * Transfer tokens from other address
     *
     * Send `_value` tokens to `_to` in behalf of `_from`
     *
     * @param _from The address of the sender
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transferFrom(address _from, address _to, uint256 _value) public returns(bool) {
        require(_value <= allowances[_from][msg.sender]);     // Check allowance
        allowances[_from][msg.sender] -= _value;
        return _transfer(_from, _to, _value);
    }

    /**
     * Set allowance for other address
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     */
    function approve(address _spender, uint256 _value) public returns(bool) {
        allowances[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    /**
     * Set allowance for other address and notify
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     * @param _extraData some extra information to send to the approved contract
     */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns(bool) {
        if (approve(_spender, _value)) {
            TokenRecipient spender = TokenRecipient(_spender);
            spender.receiveApproval(msg.sender, _value, this, _extraData);
            return true;
        }
        return false;
    }

    /**
     * Destroy tokens
     *
     * Remove `_value` tokens from the system irreversibly
     *
     * @param _value the amount of money to burn
     */
    function burn(uint256 _value) public returns(bool) {
        require(balances[msg.sender] >= _value);   // Check if the sender has enough
        balances[msg.sender] -= _value;            // Subtract from the sender
        totalSupply -= _value;                      // Updates totalSupply
        Burn(msg.sender, _value);
        return true;
    }

    /**
     * Destroy tokens from other account
     *
     * Remove `_value` tokens from the system irreversibly on behalf of `_from`.
     *
     * @param _from the address of the sender
     * @param _value the amount of money to burn
     */
    function burnFrom(address _from, uint256 _value) public returns(bool) {
        require(balances[_from] >= _value);                // Check if the targeted balance is enough
        require(_value <= allowances[_from][msg.sender]);    // Check allowance
        balances[_from] -= _value;                         // Subtract from the targeted balance
        allowances[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
        totalSupply -= _value;                              // Update totalSupply
        Burn(_from, _value);
        return true;
    }

    /**
     * approve should be called when allowances[_spender] == 0. To increment
     * allowances value is better to use this function to avoid 2 calls (and wait until
     * the first transaction is mined)
     * From MonolithDAO Token.sol
     */
    function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
        // Check for overflows
        require(allowances[msg.sender][_spender] + _addedValue > allowances[msg.sender][_spender]);

        allowances[msg.sender][_spender] += _addedValue;
        Approval(msg.sender, _spender, allowances[msg.sender][_spender]);
        return true;
    }

    function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
        uint oldValue = allowances[msg.sender][_spender];
        if (_subtractedValue > oldValue) {
            allowances[msg.sender][_spender] = 0;
        } else {
            allowances[msg.sender][_spender] = oldValue - _subtractedValue;
        }
        Approval(msg.sender, _spender, allowances[msg.sender][_spender]);
        return true;
    }


}


contract DataToken is TokenERC20 {

    function DataToken() TokenERC20(11500000000, "Data Token", "DTA", 18) public {

    }
}

Compiler Settings

{"remappings":[],"optimizer":{"runs":200,"enabled":true},"libraries":{},"compilationTarget":{"DataToken.sol":"DataToken"}}

Contract ABI

[{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":""}],"name":"name","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"approve","inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_value"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"totalSupply","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"transferFrom","inputs":[{"type":"address","name":"_from"},{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint8","name":""}],"name":"decimals","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"burn","inputs":[{"type":"uint256","name":"_value"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"decreaseApproval","inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_subtractedValue"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"balanceOf","inputs":[{"type":"address","name":"_owner"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"burnFrom","inputs":[{"type":"address","name":"_from"},{"type":"uint256","name":"_value"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":""}],"name":"symbol","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"transfer","inputs":[{"type":"address","name":"_to"},{"type":"uint256","name":"_value"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"approveAndCall","inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_value"},{"type":"bytes","name":"_extraData"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":""}],"name":"increaseApproval","inputs":[{"type":"address","name":"_spender"},{"type":"uint256","name":"_addedValue"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"allowance","inputs":[{"type":"address","name":"_owner"},{"type":"address","name":"_spender"}],"constant":true},{"type":"constructor","stateMutability":"nonpayable","payable":false,"inputs":[]},{"type":"event","name":"Burn","inputs":[{"type":"address","name":"from","indexed":true},{"type":"uint256","name":"value","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","indexed":true},{"type":"address","name":"to","indexed":true},{"type":"uint256","name":"value","indexed":false}],"anonymous":false},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","indexed":true},{"type":"address","name":"spender","indexed":true},{"type":"uint256","name":"value","indexed":false}],"anonymous":false}]

Contract Creation Code

Verify & Publish 
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