ETH Price: $2,715.77 (+1.76%)
Gas: 0.72 Gwei

Contract

0x77B9aF02a2285b25c44e7464415dF71D5fA02818
 

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Transaction Hash
Method
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From
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Deliver Tokens I...83473002019-08-14 7:33:282016 days ago1565768008IN
0x77B9aF02...D5fA02818
0 ETH0.003095741
Deliver Tokens I...83472972019-08-14 7:31:502016 days ago1565767910IN
0x77B9aF02...D5fA02818
0 ETH0.0289737541
Deliver Tokens I...83472942019-08-14 7:31:322016 days ago1565767892IN
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0 ETH0.0332787541
Deliver Tokens I...83472912019-08-14 7:30:442016 days ago1565767844IN
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0 ETH0.0274018941
Deliver Tokens I...83472872019-08-14 7:30:032016 days ago1565767803IN
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0 ETH0.0274018941
Deliver Tokens I...83472852019-08-14 7:29:052016 days ago1565767745IN
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0 ETH0.0302037541
Deliver Tokens I...83472832019-08-14 7:28:362016 days ago1565767716IN
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0 ETH0.0326637541
Deliver Tokens I...83472812019-08-14 7:27:582016 days ago1565767678IN
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0 ETH0.0351211341
Deliver Tokens I...83472782019-08-14 7:27:152016 days ago1565767635IN
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0 ETH0.031428541
Deliver Tokens I...83472722019-08-14 7:26:262016 days ago1565767586IN
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0 ETH0.030198541
Deliver Tokens I...83472692019-08-14 7:25:252016 days ago1565767525IN
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0 ETH0.036348541
Deliver Tokens I...83472672019-08-14 7:24:492016 days ago1565767489IN
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0 ETH0.033888541
Deliver Tokens I...83472642019-08-14 7:24:132016 days ago1565767453IN
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0 ETH0.0295808841
Deliver Tokens I...81537582019-07-15 5:36:252046 days ago1563168985IN
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0 ETH0.006170741
Deliver Tokens I...81537532019-07-15 5:35:122046 days ago1563168912IN
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0 ETH0.0578787541
Deliver Tokens I...81537512019-07-15 5:34:322046 days ago1563168872IN
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0 ETH0.0634137541
Deliver Tokens I...81537462019-07-15 5:33:462046 days ago1563168826IN
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0 ETH0.0548037541
Deliver Tokens I...81537422019-07-15 5:32:492046 days ago1563168769IN
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0 ETH0.0572637541
Deliver Tokens I...81537382019-07-15 5:32:282046 days ago1563168748IN
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0 ETH0.0591087541
Deliver Tokens I...81537342019-07-15 5:31:112046 days ago1563168671IN
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0 ETH0.0591087541
Deliver Tokens I...81537302019-07-15 5:29:342046 days ago1563168574IN
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0 ETH0.0597211341
Deliver Tokens I...81537292019-07-15 5:28:502046 days ago1563168530IN
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0 ETH0.060333541
Deliver Tokens I...81537262019-07-15 5:28:102046 days ago1563168490IN
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0 ETH0.058488541
Deliver Tokens I...81537222019-07-15 5:27:342046 days ago1563168454IN
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0 ETH0.064023541
Deliver Tokens I...81537182019-07-15 5:27:102046 days ago1563168430IN
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0 ETH0.062178541
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Latest 25 internal transactions (View All)

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79436752019-06-12 11:31:122079 days ago1560339072
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0.05617849 ETH
58456622018-06-24 11:05:292432 days ago1529838329
0x77B9aF02...D5fA02818
9.26196801 ETH
58456522018-06-24 11:03:122432 days ago1529838192
0x77B9aF02...D5fA02818
9.26196801 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.17 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.2 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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2 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.14 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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1.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.12 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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1.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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3 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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20 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.89 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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1 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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1 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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30 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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0.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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1 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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26.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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50 ETH
58456482018-06-24 11:01:382432 days ago1529838098
0x77B9aF02...D5fA02818
10 ETH
58456482018-06-24 11:01:382432 days ago1529838098
0x77B9aF02...D5fA02818
50 ETH
58456482018-06-24 11:01:382432 days ago1529838098
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2.5 ETH
58456482018-06-24 11:01:382432 days ago1529838098
0x77B9aF02...D5fA02818
1 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
CarryTokenPresale

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-09-01
*/

pragma solidity ^0.4.21;

// File: openzeppelin-solidity/contracts/math/SafeMath.sol

/**
 * @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 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;
  }
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol

/**
 * @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);
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20.sol

/**
 * @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);
}

// File: openzeppelin-solidity/contracts/crowdsale/Crowdsale.sol

/**
 * @title Crowdsale
 * @dev Crowdsale is a base contract for managing a token crowdsale,
 * allowing investors to purchase tokens with ether. This contract implements
 * such functionality in its most fundamental form and can be extended to provide additional
 * functionality and/or custom behavior.
 * The external interface represents the basic interface for purchasing tokens, and conform
 * the base architecture for crowdsales. They are *not* intended to be modified / overriden.
 * The internal interface conforms the extensible and modifiable surface of crowdsales. Override
 * the methods to add functionality. Consider using 'super' where appropiate to concatenate
 * behavior.
 */
contract Crowdsale {
  using SafeMath for uint256;

  // The token being sold
  ERC20 public token;

  // Address where funds are collected
  address public wallet;

  // How many token units a buyer gets per wei
  uint256 public rate;

  // Amount of wei raised
  uint256 public weiRaised;

  /**
   * Event for token purchase logging
   * @param purchaser who paid for the tokens
   * @param beneficiary who got the tokens
   * @param value weis paid for purchase
   * @param amount amount of tokens purchased
   */
  event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);

  /**
   * @param _rate Number of token units a buyer gets per wei
   * @param _wallet Address where collected funds will be forwarded to
   * @param _token Address of the token being sold
   */
  function Crowdsale(uint256 _rate, address _wallet, ERC20 _token) public {
    require(_rate > 0);
    require(_wallet != address(0));
    require(_token != address(0));

    rate = _rate;
    wallet = _wallet;
    token = _token;
  }

  // -----------------------------------------
  // Crowdsale external interface
  // -----------------------------------------

  /**
   * @dev fallback function ***DO NOT OVERRIDE***
   */
  function () external payable {
    buyTokens(msg.sender);
  }

  /**
   * @dev low level token purchase ***DO NOT OVERRIDE***
   * @param _beneficiary Address performing the token purchase
   */
  function buyTokens(address _beneficiary) public payable {

    uint256 weiAmount = msg.value;
    _preValidatePurchase(_beneficiary, weiAmount);

    // calculate token amount to be created
    uint256 tokens = _getTokenAmount(weiAmount);

    // update state
    weiRaised = weiRaised.add(weiAmount);

    _processPurchase(_beneficiary, tokens);
    emit TokenPurchase(
      msg.sender,
      _beneficiary,
      weiAmount,
      tokens
    );

    _updatePurchasingState(_beneficiary, weiAmount);

    _forwardFunds();
    _postValidatePurchase(_beneficiary, weiAmount);
  }

  // -----------------------------------------
  // Internal interface (extensible)
  // -----------------------------------------

  /**
   * @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met. Use super to concatenate validations.
   * @param _beneficiary Address performing the token purchase
   * @param _weiAmount Value in wei involved in the purchase
   */
  function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal {
    require(_beneficiary != address(0));
    require(_weiAmount != 0);
  }

  /**
   * @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid conditions are not met.
   * @param _beneficiary Address performing the token purchase
   * @param _weiAmount Value in wei involved in the purchase
   */
  function _postValidatePurchase(address _beneficiary, uint256 _weiAmount) internal {
    // optional override
  }

  /**
   * @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends its tokens.
   * @param _beneficiary Address performing the token purchase
   * @param _tokenAmount Number of tokens to be emitted
   */
  function _deliverTokens(address _beneficiary, uint256 _tokenAmount) internal {
    token.transfer(_beneficiary, _tokenAmount);
  }

  /**
   * @dev Executed when a purchase has been validated and is ready to be executed. Not necessarily emits/sends tokens.
   * @param _beneficiary Address receiving the tokens
   * @param _tokenAmount Number of tokens to be purchased
   */
  function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal {
    _deliverTokens(_beneficiary, _tokenAmount);
  }

  /**
   * @dev Override for extensions that require an internal state to check for validity (current user contributions, etc.)
   * @param _beneficiary Address receiving the tokens
   * @param _weiAmount Value in wei involved in the purchase
   */
  function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal {
    // optional override
  }

  /**
   * @dev Override to extend the way in which ether is converted to tokens.
   * @param _weiAmount Value in wei to be converted into tokens
   * @return Number of tokens that can be purchased with the specified _weiAmount
   */
  function _getTokenAmount(uint256 _weiAmount) internal view returns (uint256) {
    return _weiAmount.mul(rate);
  }

  /**
   * @dev Determines how ETH is stored/forwarded on purchases.
   */
  function _forwardFunds() internal {
    wallet.transfer(msg.value);
  }
}

// File: openzeppelin-solidity/contracts/crowdsale/validation/CappedCrowdsale.sol

/**
 * @title CappedCrowdsale
 * @dev Crowdsale with a limit for total contributions.
 */
contract CappedCrowdsale is Crowdsale {
  using SafeMath for uint256;

  uint256 public cap;

  /**
   * @dev Constructor, takes maximum amount of wei accepted in the crowdsale.
   * @param _cap Max amount of wei to be contributed
   */
  function CappedCrowdsale(uint256 _cap) public {
    require(_cap > 0);
    cap = _cap;
  }

  /**
   * @dev Checks whether the cap has been reached. 
   * @return Whether the cap was reached
   */
  function capReached() public view returns (bool) {
    return weiRaised >= cap;
  }

  /**
   * @dev Extend parent behavior requiring purchase to respect the funding cap.
   * @param _beneficiary Token purchaser
   * @param _weiAmount Amount of wei contributed
   */
  function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal {
    super._preValidatePurchase(_beneficiary, _weiAmount);
    require(weiRaised.add(_weiAmount) <= cap);
  }

}

// File: openzeppelin-solidity/contracts/ownership/Ownable.sol

/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 */
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;
  }

}

// File: openzeppelin-solidity/contracts/crowdsale/validation/WhitelistedCrowdsale.sol

/**
 * @title WhitelistedCrowdsale
 * @dev Crowdsale in which only whitelisted users can contribute.
 */
contract WhitelistedCrowdsale is Crowdsale, Ownable {

  mapping(address => bool) public whitelist;

  /**
   * @dev Reverts if beneficiary is not whitelisted. Can be used when extending this contract.
   */
  modifier isWhitelisted(address _beneficiary) {
    require(whitelist[_beneficiary]);
    _;
  }

  /**
   * @dev Adds single address to whitelist.
   * @param _beneficiary Address to be added to the whitelist
   */
  function addToWhitelist(address _beneficiary) external onlyOwner {
    whitelist[_beneficiary] = true;
  }

  /**
   * @dev Adds list of addresses to whitelist. Not overloaded due to limitations with truffle testing.
   * @param _beneficiaries Addresses to be added to the whitelist
   */
  function addManyToWhitelist(address[] _beneficiaries) external onlyOwner {
    for (uint256 i = 0; i < _beneficiaries.length; i++) {
      whitelist[_beneficiaries[i]] = true;
    }
  }

  /**
   * @dev Removes single address from whitelist.
   * @param _beneficiary Address to be removed to the whitelist
   */
  function removeFromWhitelist(address _beneficiary) external onlyOwner {
    whitelist[_beneficiary] = false;
  }

  /**
   * @dev Extend parent behavior requiring beneficiary to be in whitelist.
   * @param _beneficiary Token beneficiary
   * @param _weiAmount Amount of wei contributed
   */
  function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal isWhitelisted(_beneficiary) {
    super._preValidatePurchase(_beneficiary, _weiAmount);
  }

}

// File: openzeppelin-solidity/contracts/lifecycle/Pausable.sol

/**
 * @title Pausable
 * @dev Base contract which allows children to implement an emergency stop mechanism.
 */
contract Pausable is Ownable {
  event Pause();
  event Unpause();

  bool public paused = false;


  /**
   * @dev Modifier to make a function callable only when the contract is not paused.
   */
  modifier whenNotPaused() {
    require(!paused);
    _;
  }

  /**
   * @dev Modifier to make a function callable only when the contract is paused.
   */
  modifier whenPaused() {
    require(paused);
    _;
  }

  /**
   * @dev called by the owner to pause, triggers stopped state
   */
  function pause() onlyOwner whenNotPaused public {
    paused = true;
    emit Pause();
  }

  /**
   * @dev called by the owner to unpause, returns to normal state
   */
  function unpause() onlyOwner whenPaused public {
    paused = false;
    emit Unpause();
  }
}

// File: openzeppelin-solidity/contracts/token/ERC20/BasicToken.sol

/**
 * @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]);

    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];
  }

}

// File: openzeppelin-solidity/contracts/token/ERC20/BurnableToken.sol

/**
 * @title Burnable Token
 * @dev Token that can be irreversibly burned (destroyed).
 */
contract BurnableToken is BasicToken {

  event Burn(address indexed burner, uint256 value);

  /**
   * @dev Burns a specific amount of tokens.
   * @param _value The amount of token to be burned.
   */
  function burn(uint256 _value) public {
    _burn(msg.sender, _value);
  }

  function _burn(address _who, uint256 _value) internal {
    require(_value <= balances[_who]);
    // no need to require value <= totalSupply, since that would imply the
    // sender's balance is greater than the totalSupply, which *should* be an assertion failure

    balances[_who] = balances[_who].sub(_value);
    totalSupply_ = totalSupply_.sub(_value);
    emit Burn(_who, _value);
    emit Transfer(_who, address(0), _value);
  }
}

// File: openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol

/**
 * @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);
    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;
  }

}

// File: openzeppelin-solidity/contracts/token/ERC20/MintableToken.sol

/**
 * @title Mintable token
 * @dev Simple ERC20 Token example, with mintable token creation
 * @dev Issue: * https://github.com/OpenZeppelin/openzeppelin-solidity/issues/120
 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
 */
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;
  }
}

// File: openzeppelin-solidity/contracts/token/ERC20/CappedToken.sol

/**
 * @title Capped token
 * @dev Mintable token with a token cap.
 */
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);
  }

}

// File: openzeppelin-solidity/contracts/token/ERC20/PausableToken.sol

/**
 * @title Pausable token
 * @dev StandardToken modified with pausable transfers.
 **/
contract PausableToken is StandardToken, Pausable {

  function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
    return super.transfer(_to, _value);
  }

  function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
    return super.transferFrom(_from, _to, _value);
  }

  function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) {
    return super.approve(_spender, _value);
  }

  function increaseApproval(address _spender, uint _addedValue) public whenNotPaused returns (bool success) {
    return super.increaseApproval(_spender, _addedValue);
  }

  function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused returns (bool success) {
    return super.decreaseApproval(_spender, _subtractedValue);
  }
}

// File: contracts/CarryToken.sol

// The Carry token and the tokensale contracts
// Copyright (C) 2018 Carry Protocol
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
pragma solidity ^0.4.23;




contract CarryToken is PausableToken, CappedToken, BurnableToken {
    string public name = "CarryToken";
    string public symbol = "CRE";
    uint8 public decimals = 18;

    // See also <https://carryprotocol.io/#section-token-distribution>.
    //                10 billion <---------|   |-----------------> 10^18
    uint256 constant TOTAL_CAP = 10000000000 * 1000000000000000000;

    // FIXME: Here we've wanted to use constructor() keyword instead,
    // but solium/solhint lint softwares don't parse it properly as of
    // April 2018.
    function CarryToken() public CappedToken(TOTAL_CAP) {
    }
}

// File: contracts/CarryTokenCrowdsale.sol

// The Carry token and the tokensale contracts
// Copyright (C) 2018 Carry Protocol
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
pragma solidity ^0.4.23;






/**
 * @title CarryTokenCrowdsale
 * @dev The common base contract for both sales: the Carry token presale,
 * and the Carry token public crowdsale.
 */
contract CarryTokenCrowdsale is WhitelistedCrowdsale, CappedCrowdsale, Pausable {
    using SafeMath for uint256;

    uint256 constant maxGasPrice = 40000000000;  // 40 gwei

    // Individual min and max purchases.
    uint256 public individualMinPurchaseWei;
    uint256 public individualMaxCapWei;

    mapping(address => uint256) public contributions;

    // FIXME: Here we've wanted to use constructor() keyword instead,
    // but solium/solhint lint softwares don't parse it properly as of
    // April 2018.
    function CarryTokenCrowdsale(
        address _wallet,
        CarryToken _token,
        uint256 _rate,
        uint256 _cap,
        uint256 _individualMinPurchaseWei,
        uint256 _individualMaxCapWei
    ) public CappedCrowdsale(_cap) Crowdsale(_rate, _wallet, _token) {
        individualMinPurchaseWei = _individualMinPurchaseWei;
        individualMaxCapWei = _individualMaxCapWei;
    }

    function _preValidatePurchase(
        address _beneficiary,
        uint256 _weiAmount
    ) internal whenNotPaused {
        // Prevent gas war among purchasers.
        require(tx.gasprice <= maxGasPrice);

        super._preValidatePurchase(_beneficiary, _weiAmount);
        uint256 contribution = contributions[_beneficiary];
        uint256 contributionAfterPurchase = contribution.add(_weiAmount);

        // If a contributor already has purchased a minimum amount, say 0.1 ETH,
        // then they can purchase once again with less than a minimum amount,
        // say 0.01 ETH, because they have already satisfied the minimum
        // purchase.
        require(contributionAfterPurchase >= individualMinPurchaseWei);

        require(contributionAfterPurchase <= individualMaxCapWei);
    }

    function _updatePurchasingState(
        address _beneficiary,
        uint256 _weiAmount
    ) internal {
        super._updatePurchasingState(_beneficiary, _weiAmount);
        contributions[_beneficiary] = contributions[_beneficiary].add(
            _weiAmount
        );
    }
}

// File: contracts/GradualDeliveryCrowdsale.sol

// The Carry token and the tokensale contracts
// Copyright (C) 2018 Carry Protocol
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
pragma solidity ^0.4.23;





/**
 * @title GradualDeliveryCrowdsale
 * @dev Crowdsale that does not deliver tokens to a beneficiary immediately
 * after they have just purchased, but instead partially delivers tokens through
 * several times when the contract owner calls deliverTokensInRatio() method.
 * Note that it also provides methods to selectively refund some purchases.
 */
contract GradualDeliveryCrowdsale is Crowdsale, Ownable {
    using SafeMath for uint;
    using SafeMath for uint256;

    mapping(address => uint256) public balances;
    address[] beneficiaries;
    mapping(address => uint256) public refundedDeposits;

    event TokenDelivered(address indexed beneficiary, uint256 tokenAmount);
    event RefundDeposited(
        address indexed beneficiary,
        uint256 tokenAmount,
        uint256 weiAmount
    );
    event Refunded(
        address indexed beneficiary,
        address indexed receiver,
        uint256 weiAmount
    );

    /**
     * @dev Deliver only the given ratio of tokens to the beneficiaries.
     * For example, where there are two beneficiaries of each balance 90 CRE and
     * 60 CRE, deliverTokensInRatio(1, 3) delivers each 30 CRE and 20 CRE to
     * them.  In the similar way, deliverTokensInRatio(1, 1) delivers
     * their entire tokens.
     */
    function deliverTokensInRatio(
        uint256 _numerator,
        uint256 _denominator
    ) external onlyOwner {
        _deliverTokensInRatio(
            _numerator,
            _denominator,
            0,
            beneficiaries.length
        );
    }

    /**
     * @dev It's mostly same to deliverTokensInRatio(), except it processes
     * only a particular range of the list of beneficiaries.
     */
    function deliverTokensInRatioOfRange(
        uint256 _numerator,
        uint256 _denominator,
        uint _startIndex,
        uint _endIndex
    ) external onlyOwner {
        require(_startIndex < _endIndex);
        _deliverTokensInRatio(_numerator, _denominator, _startIndex, _endIndex);
    }

    function _deliverTokensInRatio(
        uint256 _numerator,
        uint256 _denominator,
        uint _startIndex,
        uint _endIndex
    ) internal {
        require(_denominator > 0);
        require(_numerator <= _denominator);
        uint endIndex = _endIndex;
        if (endIndex > beneficiaries.length) {
            endIndex = beneficiaries.length;
        }
        for (uint i = _startIndex; i < endIndex; i = i.add(1)) {
            address beneficiary = beneficiaries[i];
            uint256 balance = balances[beneficiary];
            if (balance > 0) {
                uint256 amount = balance.mul(_numerator).div(_denominator);
                balances[beneficiary] = balance.sub(amount);
                _deliverTokens(beneficiary, amount);
                emit TokenDelivered(beneficiary, amount);
            }
        }
    }

    function _processPurchase(
        address _beneficiary,
        uint256 _tokenAmount
    ) internal {
        if (_tokenAmount > 0) {
            if (balances[_beneficiary] <= 0) {
                beneficiaries.push(_beneficiary);
            }
            balances[_beneficiary] = balances[_beneficiary].add(_tokenAmount);
        }
    }
    /**
     * @dev Refund the given ether to a beneficiary.  It only can be called by
     * either the contract owner or the wallet (i.e., Crowdsale.wallet) address.
     * The only amount of the ether sent together in a transaction is refunded.
     */
    function depositRefund(address _beneficiary) public payable {
        require(msg.sender == owner || msg.sender == wallet);
        uint256 weiToRefund = msg.value;
        require(weiToRefund <= weiRaised);
        uint256 tokensToRefund = _getTokenAmount(weiToRefund);
        uint256 tokenBalance = balances[_beneficiary];
        require(tokenBalance >= tokensToRefund);
        weiRaised = weiRaised.sub(weiToRefund);
        balances[_beneficiary] = tokenBalance.sub(tokensToRefund);
        refundedDeposits[_beneficiary] = refundedDeposits[_beneficiary].add(
            weiToRefund
        );
        emit RefundDeposited(_beneficiary, tokensToRefund, weiToRefund);
    }

    /**
     * @dev Receive one's refunded ethers in the deposit.  It can be called by
     * either the contract owner or the beneficiary of the refund.
     * The deposited ether is sent to only the beneficiary regardless it is
     * called by which address, either the contract owner or the beneficary.
     * It usually can be systemically called together right after
     * depositRefund() is called.
     */
    function receiveRefund(address _beneficiary) public {
        require(msg.sender == owner || msg.sender == _beneficiary);
        _transferRefund(_beneficiary, _beneficiary);
    }

    /**
     * @dev Similar to receiveRefund() except that it cannot be called by
     * even the contract owner, but only the beneficiary of the refund.
     * It also takes an additional parameter, a wallet address to receiver
     * the deposited (refunded) ethers.
     * The main purpose of this method is to receive the refunded ethers
     * to the other address than the beneficiary address.  Usually after
     * depositRefund() is called, receiveRefund() is immediately executed
     * together by the automated system, but there could be cases that
     * the the beneficiary address is a smart contract and it causes
     * the transaction to transfer ethers in any reason.  In such cases,
     * the deposit beneficiary need to "pull" his ethers to his another
     * wallet address by calling this method.
     */
    function receiveRefundTo(address _beneficiary, address _wallet) public {
        require(msg.sender == _beneficiary);
        _transferRefund(_beneficiary, _wallet);
    }

    function _transferRefund(address _beneficiary, address _wallet) internal {
        uint256 depositedWeiAmount = refundedDeposits[_beneficiary];
        require(depositedWeiAmount > 0);
        refundedDeposits[_beneficiary] = 0;
        _wallet.transfer(depositedWeiAmount);
        emit Refunded(_beneficiary, _wallet, depositedWeiAmount);
    }
}

// File: contracts/CarryTokenPresale.sol

// The Carry token and the tokensale contracts
// Copyright (C) 2018 Carry Protocol
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
pragma solidity ^0.4.23;



/**
 * @title CarryTokenPresale
 * @dev The Carry token presale contract.
 */
contract CarryTokenPresale is CarryTokenCrowdsale, GradualDeliveryCrowdsale {
    using SafeMath for uint256;

    // FIXME: Here we've wanted to use constructor() keyword instead,
    // but solium/solhint lint softwares don't parse it properly as of
    // April 2018.
    function CarryTokenPresale(
        address _wallet,
        CarryToken _token,
        uint256 _rate,
        uint256 _cap,
        uint256 _individualMinPurchaseWei,
        uint256 _individualMaxCapWei
    ) public CarryTokenCrowdsale(
        _wallet,
        _token,
        _rate,
        _cap,
        _individualMinPurchaseWei,
        _individualMaxCapWei
    ) {
    }

    function _transferRefund(address _beneficiary, address _wallet) internal {
        uint256 depositedWeiAmount = refundedDeposits[_beneficiary];
        super._transferRefund(_beneficiary, _wallet);
        contributions[_beneficiary] = contributions[_beneficiary].sub(
            depositedWeiAmount
        );
    }
}

Contract Security Audit

Contract ABI

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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)

0000000000000000000000008d5f5f9a2621be9d32896cf0172515fb211e26be000000000000000000000000115ec79f1de567ec68b7ae7eda501b406626478e00000000000000000000000000000000000000000000000000000000000123fe00000000000000000000000000000000000000000000010f12a101b13f090000000000000000000000000000000000000000000000000000015fb7f9b8c38000000000000000000000000000000000000000000000000002b5e3af16b1880000

-----Decoded View---------------
Arg [0] : _wallet (address): 0x8D5F5f9a2621bE9d32896CF0172515Fb211E26bE
Arg [1] : _token (address): 0x115eC79F1de567eC68B7AE7eDA501b406626478e
Arg [2] : _rate (uint256): 74750
Arg [3] : _cap (uint256): 5000410000000000000000
Arg [4] : _individualMinPurchaseWei (uint256): 99000000000000000
Arg [5] : _individualMaxCapWei (uint256): 50000000000000000000

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000008d5f5f9a2621be9d32896cf0172515fb211e26be
Arg [1] : 000000000000000000000000115ec79f1de567ec68b7ae7eda501b406626478e
Arg [2] : 00000000000000000000000000000000000000000000000000000000000123fe
Arg [3] : 00000000000000000000000000000000000000000000010f12a101b13f090000
Arg [4] : 000000000000000000000000000000000000000000000000015fb7f9b8c38000
Arg [5] : 000000000000000000000000000000000000000000000002b5e3af16b1880000


Swarm Source

bzzr://72f5c79746be9575698a75962b780ceccb8f3935701209106fb44f7d6bba7075

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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.