Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

library SafeMath    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function add(uint256 a, uint256 b)  contract ERC20Basic    - function balanceOf(address who)    - function transfer(address to, uint256 ...  contract BasicToken is ERC20Basic    - function transfer(address _to, uint25 ...    - function balanceOf(address _owner)  contract ERC20 is ERC20Basic    - function allowance(address owner, add ...    - function transferFrom(address from, a ...    - function approve(address spender, uin ...  contract StandardToken is ERC20, B ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...    - function increaseApproval(address _sp ...    - function decreaseApproval(address _sp ...  contract Token is StandardToken *    - function Token (uint256 _totalSupply)

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-03-13
*/

pragma solidity 0.4.18;


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

	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;
	}

	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) {
		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 {
	uint256 public totalSupply;
	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;

	/**
	* @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;
	}

}

/**
* Nagri Token is fixed supply ERC20 token.
*/
contract Token is StandardToken {
	string public constant symbol = "NGR";
	string public constant name = "Nagri Token";
	uint8 public constant decimals = 18;

	/**
	 * @dev Constructor that gives msg.sender all of existing tokens.
	 */
	function Token (uint256 _totalSupply) public {
		// total supply must not be zero
		require(_totalSupply > 0);
		totalSupply = _totalSupply;
		// init token balance of the owner, all tokens go to him
		balances[msg.sender] = _totalSupply;
	}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"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":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":"balance","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":"_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":"_totalSupply","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"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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

00000000000000000000000000000000000000000009c05635460a459f840000

-----Decoded View---------------
Arg [0] : _totalSupply (uint256): 11788617000000000000000000

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000009c05635460a459f840000

bzzr://4f5929f887b4cc4f71e6aa3e9d62e893815c42e586c12a5712163d825c7606a5