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Contract

0x900D20a6c9c7bF2B3582f05cb710f61F3d22b2D4
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

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Transaction Hash
Method
Block
From
To
Transfer57860832018-06-14 6:56:452451 days ago1528959405IN
0x900D20a6...F3d22b2D4
0 ETH0.0007405220

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Contract Source Code Verified (Exact Match)

Contract Name:
ERC20Token

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-06-14
*/

pragma solidity ^0.4.13;

contract tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData); }

contract ERC20Token {
    /* Public variables of the token */
    string public name;
    string public symbol;
    uint8 public decimals;
    uint256 public totalSupply;

    /* This creates an array with all balances */
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    /* This generates a public event on the blockchain that will notify clients */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /* This notifies clients about the amount burnt */
    event Burn(address indexed from, uint256 value);

    /* Initializes contract with initial supply tokens to the creator of the contract */
    function ERC20Token(
        uint256 initialSupply,
        string tokenName,
        uint8 decimalUnits,
        string tokenSymbol
        ) {
        balanceOf[msg.sender] = initialSupply;              // Give the creator all initial tokens
        totalSupply = initialSupply;                        // Update total supply
        name = tokenName;                                   // Set the name for display purposes
        symbol = tokenSymbol;                               // Set the symbol for display purposes
        decimals = decimalUnits;                            // Amount of decimals for display purposes
    }

    /* Internal transfer, only can be called by this contract */
    function _transfer(address _from, address _to, uint _value) internal {
        require (_to != 0x0);                               // Prevent transfer to 0x0 address. Use burn() instead
        require (balanceOf[_from] >= _value);                // Check if the sender has enough
        require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
        balanceOf[_from] -= _value;                         // Subtract from the sender
        balanceOf[_to] += _value;                            // Add the same to the recipient
        Transfer(_from, _to, _value);
    }

    /// @notice 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) returns (bool success) {
        _transfer(msg.sender, _to, _value);
		return true;
    }

    /// @notice 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) returns (bool success) {
        require (_value <= allowance[_from][msg.sender]);     // Check allowance
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    /// @notice 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) returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        return true;
    }

    /// @notice 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)
        returns (bool success) {
        tokenRecipient spender = tokenRecipient(_spender);
        if (approve(_spender, _value)) {
            spender.receiveApproval(msg.sender, _value, this, _extraData);
            return true;
        }
    }        

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

    function burnFrom(address _from, uint256 _value) returns (bool success) {
        require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
        require(_value <= allowance[_from][msg.sender]);    // Check allowance
        balanceOf[_from] -= _value;                         // Subtract from the targeted balance
        allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
        totalSupply -= _value;                              // Update totalSupply
        Burn(_from, _value);
        return true;
    }
}

Contract Security Audit

Contract ABI

API
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"}],"name":"burnFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"initialSupply","type":"uint256"},{"name":"tokenName","type":"string"},{"name":"decimalUnits","type":"uint8"},{"name":"tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Burn","type":"event"}]

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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] : initialSupply (uint256): 200000000000000000
Arg [1] : tokenName (string): Community Chain
Arg [2] : decimalUnits (uint8): 8
Arg [3] : tokenSymbol (string): COM

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000002c68af0bb140000
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [5] : 436f6d6d756e69747920436861696e0000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [7] : 434f4d0000000000000000000000000000000000000000000000000000000000


Swarm Source

bzzr://f30c229e5f7212ee988fc01088c45ce5c728dcf08c5826bc3f5ca9c449977795

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