Cryo Explorer Ethereum Mainnet

Address Contract Partially Verified

Address 0xf8b358b3397a8ea5464f8cc753645d42e14b79EA
Balance 0 ETH
Nonce 1
Code Size 7402 bytes
Creator 0xfbA4D50C...8922 at tx 0x1a743b3c...ca2d77
Last Active
Indexed Transactions 14 (10,649,923 → 10,701,508)
Gas Used (indexed) 371,960
External Etherscan · Sourcify

Contract Bytecode

7402 bytes
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Verified Source Code Partial Match

Compiler: v0.4.21+commit.dfe3193c EVM: byzantium Optimization: No
ABL.sol 331 lines 
pragma solidity ^0.4.19;


contract OwnableToken {
    mapping (address => bool) owners;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event OwnershipExtended(address indexed host, address indexed guest);

    modifier onlyOwner() {
        require(owners[msg.sender]);
        _;
    }

    function OwnableToken() public {
        owners[msg.sender] = true;
    }

    function addOwner(address guest) public onlyOwner {
        require(guest != address(0));
        owners[guest] = true;
        emit OwnershipExtended(msg.sender, guest);
    }

    function transferOwnership(address newOwner) public onlyOwner {
        require(newOwner != address(0));
        owners[newOwner] = true;
        delete owners[msg.sender];
        emit OwnershipTransferred(msg.sender, newOwner);
    }
}


/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
      return 0;
    }
    uint256 c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}


/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
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);
}


/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint256;

  mapping(address => uint256) balances;

  uint256 totalSupply_;

  /**
  * @dev total number of tokens in existence
  */
  function totalSupply() public view returns (uint256) {
    return totalSupply_;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[msg.sender]);

    // SafeMath.sub will throw if there is not enough balance.
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
    return true;
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of.
  * @return An uint256 representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances[_owner];
  }

}


/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
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);
}


/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is ERC20, BasicToken {

  mapping (address => mapping (address => uint256)) internal allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint256 the amount of tokens to be transferred
   */
  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);
    Transfer(_from, _to, _value);
    return true;
  }

  /**
   * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
   *
   * 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
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint256 _value) public returns (bool) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }

  /**
   * @dev Function to check the amount of tokens that an owner allowed to a spender.
   * @param _owner address The address which owns the funds.
   * @param _spender address The address which will spend the funds.
   * @return A uint256 specifying the amount of tokens still available for the spender.
   */
  function allowance(address _owner, address _spender) public view returns (uint256) {
    return allowed[_owner][_spender];
  }

  /**
   * @dev Increase the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To increment
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _addedValue The amount of tokens to increase the allowance by.
   */
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

  /**
   * @dev Decrease the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To decrement
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _subtractedValue The amount of tokens to decrease the allowance by.
   */
  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);
    }
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

}


contract ABL is StandardToken, OwnableToken {
    using SafeMath for uint256;

    // Token Distribution Rate
    uint256 public constant SUM = 400000000;   // totalSupply
    uint256 public constant DISTRIBUTION = 221450000; // distribution
    uint256 public constant DEVELOPERS = 178550000;   // developer

    // Token Information
    string public constant name = "Airbloc";
    string public constant symbol = "ABL";
    uint256 public constant decimals = 18;
    uint256 public totalSupply = SUM.mul(10 ** uint256(decimals));

    // token is non-transferable until owner calls unlock()
    // (to prevent OTC before the token to be listed on exchanges)
    bool isTransferable = false;

    function ABL(
        address _dtb,
        address _dev
        ) public {
        require(_dtb != address(0));
        require(_dev != address(0));
        require(DISTRIBUTION + DEVELOPERS == SUM);

        balances[_dtb] = DISTRIBUTION.mul(10 ** uint256(decimals));
        emit Transfer(address(0), _dtb, balances[_dtb]);

        balances[_dev] = DEVELOPERS.mul(10 ** uint256(decimals));
        emit Transfer(address(0), _dev, balances[_dev]);
    }

    function unlock() external onlyOwner {
        isTransferable = true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
        require(isTransferable || owners[msg.sender]);
        return super.transferFrom(_from, _to, _value);
    }

    function transfer(address _to, uint256 _value) public returns (bool) {
        require(isTransferable || owners[msg.sender]);
        return super.transfer(_to, _value);
    }

//////////////////////
//  mint and burn   //
//////////////////////
    function mint(
        address _to,
        uint256 _amount
        ) onlyOwner public returns (bool) {
        require(_to != address(0));
        require(_amount >= 0);

        uint256 amount = _amount.mul(10 ** uint256(decimals));

        totalSupply = totalSupply.add(amount);
        balances[_to] = balances[_to].add(amount);

        emit Mint(_to, amount);
        emit Transfer(address(0), _to, amount);

        return true;
    }

    function burn(
        uint256 _amount
        ) onlyOwner public {
        require(_amount >= 0);
        require(_amount <= balances[msg.sender]);

        totalSupply = totalSupply.sub(_amount.mul(10 ** uint256(decimals)));
        balances[msg.sender] = balances[msg.sender].sub(_amount.mul(10 ** uint256(decimals)));

        emit Burn(msg.sender, _amount.mul(10 ** uint256(decimals)));
        emit Transfer(msg.sender, address(0), _amount.mul(10 ** uint256(decimals)));
    }

    event Mint(address indexed _to, uint256 _amount);
    event Burn(address indexed _from, uint256 _amount);
}

Read Contract

DEVELOPERS 0x79eee392 → uint256
DISTRIBUTION 0x7c91e4eb → uint256
SUM 0x3c16761f → uint256
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint256
name 0x06fdde03 → string
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256

Write Contract 10 functions

These functions modify contract state and require a wallet transaction to execute.

addOwner 0x7065cb48
address guest
approve 0x095ea7b3
address _spender
uint256 _value
returns: bool
burn 0x42966c68
uint256 _amount
decreaseApproval 0x66188463
address _spender
uint256 _subtractedValue
returns: bool
increaseApproval 0xd73dd623
address _spender
uint256 _addedValue
returns: bool
mint 0x40c10f19
address _to
uint256 _amount
returns: bool
transfer 0xa9059cbb
address _to
uint256 _value
returns: bool
transferFrom 0x23b872dd
address _from
address _to
uint256 _value
returns: bool
transferOwnership 0xf2fde38b
address newOwner
unlock 0xa69df4b5
No parameters

Top Interactions

AddressTxnsSentReceived
0x0c6C34CD...4eeC 4 4
0xD83e2D4e...9611 2 2
0x1B084bD4...415f 1 1
0x3624B8eF...7fe4 1 1
0xCab4f2C9...7Fa4 1 1
0x7A13BFC2...B6D1 1 1
Transactions (14) Internal Txs Token Transfers Events

Recent Transactions

CSV View All 14 Transactions →
|
Hash Method Block Age From/To Value Txn Fee Type
0xa963d438...6eba74 transfer 10,701,508 IN 0x1B084bD4...415f 0 ETH 0.00289763 ETH Legacy
0x1f0a301a...4fea93 approve 10,696,955 IN 0x3624B8eF...7fe4 0 ETH 0.00505724 ETH Legacy
0xc1846d40...a0cf42 transfer 10,696,021 IN 0x0c6C34CD...4eeC 0 ETH 0.00707307 ETH Legacy
0xb321936b...1ce1c4 transfer 10,658,879 IN 0x0c6C34CD...4eeC 0 ETH 0.01425251 ETH Legacy
0x2ad9518c...45884e transfer 10,656,615 IN 0xCab4f2C9...7Fa4 0 ETH 0.00681521 ETH Legacy
0xc8f50fef...3ca7f0 transfer 10,656,361 IN 0x0c6C34CD...4eeC 0 ETH 0.01936225 ETH Legacy
0xc18378a4...26679a transfer 10,654,351 IN 0x0c6C34CD...4eeC 0 ETH 0.00771256 ETH Legacy
0x2a69367b...daff2a transfer 10,651,913 IN 0xD83e2D4e...9611 0 ETH 0.00835400 ETH Legacy
0x4e6ee31b...5fd386 Fail transfer 10,651,817 IN 0xD83e2D4e...9611 0 ETH 0.00450000 ETH Legacy
0x300723e2...624a22 transfer 10,649,923 IN 0x7A13BFC2...B6D1 0 ETH 0.00582446 ETH Legacy