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Token Holdings

Transaction Hash
Method
Block
From
To
Transfer217724022025-02-04 10:00:352 hrs ago1738663235IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217723842025-02-04 9:56:592 hrs ago1738663019IN
Dukascoin: DUK+ Token
0 ETH0.000100812.14119276
Transfer217531872025-02-01 17:33:232 days ago1738431203IN
Dukascoin: DUK+ Token
0 ETH0.000269869
Transfer217531742025-02-01 17:30:472 days ago1738431047IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217531702025-02-01 17:29:592 days ago1738430999IN
Dukascoin: DUK+ Token
0 ETH0.000187823.98806085
Transfer217531572025-02-01 17:27:232 days ago1738430843IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217531552025-02-01 17:26:592 days ago1738430819IN
Dukascoin: DUK+ Token
0 ETH0.000218614.21343216
Transfer217531422025-02-01 17:24:232 days ago1738430663IN
Dukascoin: DUK+ Token
0 ETH0.000223894.31528922
Transfer217531342025-02-01 17:22:472 days ago1738430567IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217531152025-02-01 17:18:592 days ago1738430339IN
Dukascoin: DUK+ Token
0 ETH0.000228464.40328776
Transfer217381642025-01-30 15:11:234 days ago1738249883IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217381272025-01-30 15:03:594 days ago1738249439IN
Dukascoin: DUK+ Token
0 ETH0.000394738.38352211
Transfer217356772025-01-30 6:51:235 days ago1738219883IN
Dukascoin: DUK+ Token
0 ETH0.00333704137.94
Transfer217356772025-01-30 6:51:235 days ago1738219883IN
Dukascoin: DUK+ Token
0 ETH0.000032981.1
Transfer217152782025-01-27 10:30:478 days ago1737973847IN
Dukascoin: DUK+ Token
0 ETH0.000466969
Transfer217009972025-01-25 10:42:5910 days ago1737801779IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer217009822025-01-25 10:39:5910 days ago1737801599IN
Dukascoin: DUK+ Token
0 ETH0.00032836.9725022
Transfer216971052025-01-24 21:39:2310 days ago1737754763IN
Dukascoin: DUK+ Token
0 ETH0.000466969
Transfer216869782025-01-23 11:45:4712 days ago1737632747IN
Dukascoin: DUK+ Token
0 ETH0.000466969
Transfer216553672025-01-19 1:50:5916 days ago1737251459IN
Dukascoin: DUK+ Token
0 ETH0.000312959
Transfer216483452025-01-18 2:19:5917 days ago1737166799IN
Dukascoin: DUK+ Token
0 ETH0.000269759
Transfer216483232025-01-18 2:15:3517 days ago1737166535IN
Dukascoin: DUK+ Token
0 ETH0.000333957.0925595
Transfer216482722025-01-18 2:05:1117 days ago1737165911IN
Dukascoin: DUK+ Token
0 ETH0.000466969
Transfer216081252025-01-12 11:30:5923 days ago1736681459IN
Dukascoin: DUK+ Token
0 ETH0.0002998510
Transfer216081092025-01-12 11:27:4723 days ago1736681267IN
Dukascoin: DUK+ Token
0 ETH0.000158313.36155226
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Contract Source Code Verified (Exact Match)

Contract Name:
MyToken

Compiler Version
v0.5.2+commit.1df8f40c

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2019-02-12
*/

pragma solidity 0.5.2;


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

  /**
  * @dev Multiplies two numbers, reverts on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    uint256 c = a * b;
    require(c / a == b);

    return c;
  }

  /**
  * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0); // Solidity only automatically asserts 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, reverts on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a);
    uint256 c = a - b;

    return c;
  }

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

    return c;
  }

  /**
  * @dev Divides two numbers and returns the remainder (unsigned integer modulo),
  * reverts when dividing by zero.
  */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0);
    return a % b;
  }
}


/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
 * Originally based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract MyToken {
  using SafeMath for uint256;

  mapping (address => uint256) private _balances;

  mapping (address => mapping (address => uint256)) private _allowed;

  uint256 private _totalSupply;
  
  string private _name;
  string private _symbol;
  uint8 private _decimals;

  constructor() public {
    _name = "Dukascoin";
    _symbol = "DUK+";
    _decimals = 4;

    _totalSupply = 200000000000000;
    _balances[msg.sender] = _totalSupply;
    emit Transfer(address(0), msg.sender, _totalSupply);
  }
  
  /**
   * @return the name of the token.
   */
  function name() public view returns(string memory) {
    return _name;
  }

  /**
   * @return the symbol of the token.
   */
  function symbol() public view returns(string memory) {
    return _symbol;
  }

  /**
   * @return the number of decimals of the token.
   */
  function decimals() public view returns(uint8) {
    return _decimals;
  }


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

  /**
  * @dev Gets the balance of the specified address.
  * @param owner The address to query 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];
  }

  /**
   * @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 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) {
    _transfer(msg.sender, 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) {
    require(spender != address(0));

    _allowed[msg.sender][spender] = value;
    emit Approval(msg.sender, spender, value);
    return true;
  }

  /**
   * @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(value <= _allowed[from][msg.sender]);

    _allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
    _transfer(from, to, value);
    return true;
  }

  /**
   * @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 increaseAllowance(
    address spender,
    uint256 addedValue
  )
    public
    returns (bool)
  {
    require(spender != address(0));

    _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 decreaseAllowance(
    address spender,
    uint256 subtractedValue
  )
    public
    returns (bool)
  {
    require(spender != address(0));

    _allowed[msg.sender][spender] = (
      _allowed[msg.sender][spender].sub(subtractedValue));
    emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
    return true;
  }

  /**
  * @dev Transfer token for a specified addresses
  * @param from The address to transfer from.
  * @param to The address to transfer to.
  * @param value The amount to be transferred.
  */
  function _transfer(address from, address to, uint256 value) internal {
    require(value <= _balances[from]);
    require(to != address(0));

    _balances[from] = _balances[from].sub(value);
    _balances[to] = _balances[to].add(value);
    emit Transfer(from, to, value);
  }
  
  event Transfer(
    address indexed from,
    address indexed to,
    uint256 value
  );

  event Approval(
    address indexed owner,
    address indexed spender,
    uint256 value
  );
}

Contract Security Audit

Contract ABI

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Deployed Bytecode

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Swarm Source

bzzr://d5c206a38226039948cb901cf163e07ea824cf0b9ed3a5eaf07fb172501e723a

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OVERVIEW

The Dukascoin, designed as a crypto means of payment, is issued in limited quantity to serve as both payment and speculation. The Dukascoin is expected to gain in value due to a limited supply and being the first crypto currency in the Swiss banking industry.

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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.