ETH Price: $2,726.40 (+1.87%)

Token

Stud Coin (STUD)
 

Overview

Max Total Supply

15,000,000 STUD

Holders

10

Market

Onchain Market Cap

$0.00

Circulating Supply Market Cap

-

Other Info

Token Contract (WITH 3 Decimals)

Balance
3,590 STUD

Value
$0.00
0x60d85beb4e603ce3e75a10d170550f1e28b806d1
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# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
StudToken

Compiler Version
v0.4.21+commit.dfe3193c

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-05-12
*/

pragma solidity ^0.4.21;

contract ERC20Basic {
  function totalSupply() public view returns (uint256);
  function balanceOf(address who) public view returns (uint256);
  function transfer(address to, uint256 value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public view returns (uint256);
  function transferFrom(address from, address to, uint256 value) public returns (bool);
  function approve(address spender, uint256 value) public returns (bool);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    return a / b;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

contract BasicToken is ERC20Basic {
  using SafeMath for uint256;
  mapping(address => uint256) balances;
  uint256 totalSupply_;
  function totalSupply() public view returns (uint256) {
    return totalSupply_;
  }
  function transfer(address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[msg.sender]);

    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
    return true;
  }
  function balanceOf(address _owner) public view returns (uint256) {
    return balances[_owner];
  }
}

contract StandardToken is ERC20, BasicToken {
  mapping (address => mapping (address => uint256)) internal allowed;
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[_from]);
    require(_value <= allowed[_from][msg.sender]);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    emit Transfer(_from, _to, _value);
    return true;
  }
  function approve(address _spender, uint256 _value) public returns (bool) {
    allowed[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
  }
  function allowance(address _owner, address _spender) public view returns (uint256) {
    return allowed[_owner][_spender];
  }
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }
  function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }
}

contract StudToken is StandardToken {
    function() public {
        revert();
    }
    string public constant name = 'Stud Coin';
    string public constant symbol = 'STUD';
    uint8 public constant decimals = 3;
    string public constant version = 'S1.0';
    function StudToken(uint256 _initialAmount) public {
        balances[msg.sender] = _initialAmount;
        totalSupply_ = _initialAmount;
    }
    function approveAndCall(address _spender, uint256 _value, bytes _data) public payable returns (bool) {
        require(_spender != address(this));
        super.approve(_spender, _value);
        // solium-disable-next-line security/no-call-value
        require(_spender.call.value(msg.value)(_data));
        return true;
    }
}

Contract Security Audit

Contract ABI

[{"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":"","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":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","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":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_initialAmount","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":false,"stateMutability":"nonpayable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"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"}]

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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)

000000000000000000000000000000000000000000000000000000037e11d600

-----Decoded View---------------
Arg [0] : _initialAmount (uint256): 15000000000

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000000000000000000000000037e11d600


Swarm Source

bzzr://2936208727b7139aad257109294a3b19151c1e543af915bbced409ac4463d6f5
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