Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Owned    - function transferOwnership(address ne ...  contract SafeMath    - function safeAdd(uint256 a, uint256 b ...    - function safeSub(uint256 a, uint256 b ...  contract CURESToken is Owned, Safe ... *    - function balanceOf(address _owner)    - function allowance(address _owner, ad ...    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function burn(uint256 _value)    - function FreezeAccounts(address[] mem ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-03-25
*/

pragma solidity >= 0.4.24 < 0.6.0;

/**
 * @title Owned
 * @dev Contract that sets an owner, who can execute predefined functions, only accessible by him
 */
contract Owned {
	address public owner;

	constructor() public {
		owner = msg.sender;
	}

	modifier onlyOwner {
		require(msg.sender == owner);
		_;
	}

	function transferOwnership(address newOwner) public onlyOwner {
		require(newOwner != address(0x0));
		owner = newOwner;
	}
}

/**
 * @title SafeMath
 * @dev Mathematical functions to check for overflows
 */
contract SafeMath {
	function safeAdd(uint256 a, uint256 b) internal pure returns (uint256) {
		uint256 c = a + b;
		assert(c >= a && c >= b);

		return c;
	}

	function safeSub(uint256 a, uint256 b) internal pure returns (uint256) {
		assert(b <= a);
		uint256 c = a - b;

		return c;
	}
}

contract CURESToken is Owned, SafeMath {
	// Public variables of the token
	string public name = "CURESToken";									// Token name
	string public symbol = "CRS";										// Token symbol
	uint8 public decimals = 18;											// Token amount of decimals
	uint256 public totalSupply = 500000000 * 10 ** uint256(decimals);	// Token supply - 500 Million

	// Creates array with balances
	mapping (address => uint256) public balances;
	mapping (address => mapping (address => uint256)) public allowances;
	mapping (address => uint256) public frozenAccounts;

	/**
	 * Constructor function
	 *
	 * @dev Constructor function - Deploy the contract
	 */
	constructor() public {
		// Give the creator all initial tokens
		balances[msg.sender] = totalSupply;
	}

	/**
	 * @param _owner The address from which the balance will be retrieved
	 * @return The balance
	 */
	function balanceOf(address _owner) public view returns (uint256 balance) {
		return balances[_owner];
	}

	/**
	 * @notice Allows `_spender` to spend no more than `_value` tokens in msg.sender behalf
	 * @param _owner The address of the account owning tokens
	 * @param _spender The address of the account able to transfer the tokens
	 * @return Amount of remaining tokens allowed to spent
	 */	
	function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
		return allowances[_owner][_spender];
	}

	/**
	 * @notice send `_value` token to `_to` from `msg.sender`
	 * @param _to The address of the recipient
	 * @param _value The amount of token to be transferred
	 * @return Whether the transfer was successful or not
	 */	
	function transfer(address _to, uint256 _value) public returns (bool success) {
		// Prevent transfer to 0x0 (empty) address, use burn() instead
		require(_to != address(0x0));

		// Prevent empty transactions
		require(_value > 0);

		// Check if sender account is frozen
		require(frozenAccounts[msg.sender] < now);

		// Check if sender has enough
		require(balances[msg.sender] >= _value);

		// Subtract the amount from the sender
		balances[msg.sender] = safeSub(balances[msg.sender], _value);

		// Add the same amount to the recipient
		balances[_to] = safeAdd(balances[_to], _value);

		// Generate the public transfer event and return success
		emit Transfer(msg.sender, _to, _value);
		return true;
	}

	/**
	 * @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
	 * @param _from The address of the sender
	 * @param _to The address of the recipient
	 * @param _value The amount of token to be transferred
	 * @return Whether the transfer was successful or not
	 */	
	function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
		// Prevent transfer to 0x0 (empty) address
		require(_to != address(0x0));

		// Prevent empty transactions
		require(_value > 0);

		// Check if token owner account is frozen
		require(frozenAccounts[_from] < now);

		// Check if sender is allowed to spend the amount
		require(allowances[_from][msg.sender] >= _value);

		// Check if token owner has enough
		require(balances[_from] >= _value);

		// Subtract the amount from the sender
		allowances[_from][msg.sender] = safeSub(allowances[_from][msg.sender], _value);

		// Subtract the amount from the token owner
		balances[_from] = safeSub(balances[_from], _value);

		// Add the same amount to the recipient
		balances[_to] = safeAdd(balances[_to], _value);

		// Generate the public transfer event and return success
		emit Transfer(_from, _to, _value);
		return true;
	}

	/**
	 * @notice `msg.sender` approves `_spender` to spend `_value` tokens
	 * @param _spender The address of the account able to transfer the tokens
	 * @param _value The amount of tokens to be approved for transfer
	 * @return Whether the approval was successful or not
	 */	
	function approve(address _spender, uint256 _value) public returns (bool success) {
		// The amount has to be bigger or equal to 0
		require(_value >= 0);

		allowances[msg.sender][_spender] = _value;

		// Generate the public approval event and return success
		emit Approval(msg.sender, _spender, _value);
		return true;
	}

	/**
	 * @notice Remove `_value` tokens from the system irreversibly
	 * @param _value the amount of money to burn
	 */
	function burn(uint256 _value) public returns (bool success) {
		// Check if value is less than 0
		require(_value > 0);

		// Check if the owner has enough tokens
		require(balances[msg.sender] >= _value);

		// Subtract the value from the owner
		balances[msg.sender] = safeSub(balances[msg.sender], _value);

		// Subtract the value from the Total Balance
		totalSupply = safeSub(totalSupply, _value);

		// Generate the public burn event and return success
		emit Burn(msg.sender, _value);
		return true;
	}

	/**
	 * @dev Freeze one or more account until specific date
	 * @param _addresses array with wallet addresses we want to freeze
	 * @param _until is the time until when the account is frozen
	 */
	function FreezeAccounts(address[] memory _addresses, uint256 _until) public onlyOwner returns (bool success) {
		for (uint i = 0; i < _addresses.length; i++) {
			frozenAccounts[_addresses[i]] = _until;

			// Generate the public freeze event
			emit Freeze(_addresses[i], _until);
		}

		return true;
	}

	// Public events on the blockchain to notify clients
	event Transfer(address indexed _owner, address indexed _to, uint256 _value);
	event Approval(address indexed _owner, address indexed _spender, uint256 _value);
	event Burn(address indexed _owner, uint256 _value);
	event Freeze(address indexed _owner, uint256 _until);
}

• 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":"success","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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balances","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowances","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","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":"","type":"address"}],"name":"frozenAccounts","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_addresses","type":"address[]"},{"name":"_until","type":"uint256"}],"name":"FreezeAccounts","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"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":"_owner","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":false,"name":"_until","type":"uint256"}],"name":"Freeze","type":"event"}]

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

bzzr://cf62c510669edeaefc55363efa1a111059494488682890c03849ec2af8b1096e