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BTU Protocol (BTU) (@$0.5061)

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1 address found via
Transaction Hash
Method
Block
From
To
Transfer223169772025-04-21 11:08:116 hrs ago1745233691IN
BTU Protocol: BTU Token
0 ETH0.00004410.93375423
Transfer223020212025-04-19 9:01:232 days ago1745053283IN
BTU Protocol: BTU Token
0 ETH0.000012890.42765714
Approve222783712025-04-16 1:49:235 days ago1744768163IN
BTU Protocol: BTU Token
0 ETH0.000009060.37578205
Approve222783562025-04-16 1:46:235 days ago1744767983IN
BTU Protocol: BTU Token
0 ETH0.000016220.34944241
Approve222764912025-04-15 19:32:355 days ago1744745555IN
BTU Protocol: BTU Token
0 ETH0.000073311.5794359
Approve222497122025-04-12 1:53:359 days ago1744422815IN
BTU Protocol: BTU Token
0 ETH0.00002650.57541911
Approve221892512025-04-03 15:22:4718 days ago1743693767IN
BTU Protocol: BTU Token
0 ETH0.000131862.84448906
Approve221796912025-04-02 7:20:1119 days ago1743578411IN
BTU Protocol: BTU Token
0 ETH0.000034810.75
Transfer221795172025-04-02 6:45:1119 days ago1743576311IN
BTU Protocol: BTU Token
0 ETH0.000021780.72215971
Transfer221795162025-04-02 6:44:5919 days ago1743576299IN
BTU Protocol: BTU Token
0 ETH0.000021270.70590723
Transfer221795102025-04-02 6:43:4719 days ago1743576227IN
BTU Protocol: BTU Token
0 ETH0.000035910.76028119
Approve221604182025-03-30 14:47:4722 days ago1743346067IN
BTU Protocol: BTU Token
0 ETH0.000019330.41665043
Approve221330002025-03-26 18:53:2325 days ago1743015203IN
BTU Protocol: BTU Token
0 ETH0.000029450.63890075
Approve221199622025-03-24 23:11:2327 days ago1742857883IN
BTU Protocol: BTU Token
0 ETH0.000023090.5
Approve221175252025-03-24 15:01:1128 days ago1742828471IN
BTU Protocol: BTU Token
0 ETH0.000079711.71732009
Approve220952582025-03-21 12:31:1131 days ago1742560271IN
BTU Protocol: BTU Token
0 ETH0.000021790.47231155
Approve220930092025-03-21 4:59:5931 days ago1742533199IN
BTU Protocol: BTU Token
0 ETH0.000064321.3880009
Transfer220895512025-03-20 17:24:2331 days ago1742491463IN
BTU Protocol: BTU Token
0 ETH0.000068742.27731677
Approve220882352025-03-20 13:00:4732 days ago1742475647IN
BTU Protocol: BTU Token
0 ETH0.000029510.63991491
Transfer220867872025-03-20 8:09:5932 days ago1742458199IN
BTU Protocol: BTU Token
0 ETH0.000024230.46556216
Transfer220866902025-03-20 7:50:2332 days ago1742457023IN
BTU Protocol: BTU Token
0 ETH0.000021110.7
Approve220827982025-03-19 18:48:1132 days ago1742410091IN
BTU Protocol: BTU Token
0 ETH0.000022920.49729154
Approve220750422025-03-18 16:45:3534 days ago1742316335IN
BTU Protocol: BTU Token
0 ETH0.000120662.59947671
Transfer220525912025-03-15 13:30:5937 days ago1742045459IN
BTU Protocol: BTU Token
0 ETH0.000072231.52840935
Approve219912462025-03-06 23:51:5945 days ago1741305119IN
BTU Protocol: BTU Token
0 ETH0.000030970.6682931
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Transfer55892372018-05-10 12:15:052538 days ago1525954505  Contract Creation0 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
BTU

Compiler Version
v0.4.23+commit.124ca40d

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-07-17
*/

pragma solidity ^0.4.23;
// produced by the Solididy File Flattener (c) David Appleton 2018
// contact : [email protected]
// released under Apache 2.0 licence
contract Ownable {
  address public owner;


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


  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() public {
    owner = msg.sender;
  }

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}

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);
}

library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  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;
  }

  /**
  * @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 a / b;
  }

  /**
  * @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 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

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);
}

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]);

    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit 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) {
    return balances[_owner];
  }

}

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);
    emit 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;
    emit 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);
    emit 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);
    }
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

}

contract MintableToken is StandardToken, Ownable {
  event Mint(address indexed to, uint256 amount);
  event MintFinished();

  bool public mintingFinished = false;


  modifier canMint() {
    require(!mintingFinished);
    _;
  }

  /**
   * @dev Function to mint tokens
   * @param _to The address that will receive the minted tokens.
   * @param _amount The amount of tokens to mint.
   * @return A boolean that indicates if the operation was successful.
   */
  function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
    totalSupply_ = totalSupply_.add(_amount);
    balances[_to] = balances[_to].add(_amount);
    emit Mint(_to, _amount);
    emit Transfer(address(0), _to, _amount);
    return true;
  }

  /**
   * @dev Function to stop minting new tokens.
   * @return True if the operation was successful.
   */
  function finishMinting() onlyOwner canMint public returns (bool) {
    mintingFinished = true;
    emit MintFinished();
    return true;
  }
}

contract CappedToken is MintableToken {

  uint256 public cap;

  function CappedToken(uint256 _cap) public {
    require(_cap > 0);
    cap = _cap;
  }

  /**
   * @dev Function to mint tokens
   * @param _to The address that will receive the minted tokens.
   * @param _amount The amount of tokens to mint.
   * @return A boolean that indicates if the operation was successful.
   */
  function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
    require(totalSupply_.add(_amount) <= cap);

    return super.mint(_to, _amount);
  }

}

contract BTU is CappedToken {
    string public constant name = "BTU Protocol";
    string public constant symbol = "BTU";
    uint8 public constant decimals = 18;
    uint public constant INITIAL_SUPPLY = 100000000 * 10 ** 18; // 100 millions tokens

    /**
     * On construction, the owner balance is set with the INITIAL_FUNDS amount.
     * Distribution of BTUs can be done from the owner address.
     * _totalSupply is inherited from CappedToken and determine how many tokens are created when the contract is created
     */
    constructor() public CappedToken(INITIAL_SUPPLY) {
        totalSupply_ = INITIAL_SUPPLY;
        balances[msg.sender] = INITIAL_SUPPLY;
    }
}

Contract Security Audit

Contract ABI

API
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bzzr://8d6e9b157b6c45dd0e987b84ee0db9e83a054064c3c61eeaabda47eac4d4e9f0

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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.