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Overview
Max Total Supply
52,999,378 CPY
Holders
11,714 (0.00%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
Token
Compiler Version
v0.4.18+commit.9cf6e910
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2017-12-19 */ pragma solidity ^0.4.18; /** * @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 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 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]; } /** * 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 */ 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; } 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; } } // // CPYToken is a standard ERC20 token with additional functionality: // - tokenSaleContract receives the whole balance for distribution // - Tokens are only transferable by the tokenSaleContract until finalization // - Token holders can burn their tokens after finalization // contract Token is StandardToken { string public constant name = "COPYTRACK Token"; string public constant symbol = "CPY"; uint8 public constant decimals = 18; uint256 constant EXA = 10 ** 18; uint256 public totalSupply = 100 * 10 ** 6 * EXA; bool public finalized = false; address public tokenSaleContract; // // EVENTS // event Finalized(); event Burnt(address indexed _from, uint256 _amount); // Initialize the token with the tokenSaleContract and transfer the whole balance to it function Token(address _tokenSaleContract) public { // Make sure address is set require(_tokenSaleContract != 0); balances[_tokenSaleContract] = totalSupply; tokenSaleContract = _tokenSaleContract; } // Implementation of the standard transfer method that takes the finalize flag into account function transfer(address _to, uint256 _value) public returns (bool success) { checkTransferAllowed(msg.sender); return super.transfer(_to, _value); } // Implementation of the standard transferFrom method that takes into account the finalize flag function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { checkTransferAllowed(msg.sender); return super.transferFrom(_from, _to, _value); } function checkTransferAllowed(address _sender) private view { if (finalized) { // Every token holder should be allowed to transfer tokens once token was finalized return; } // Only allow tokenSaleContract to transfer tokens before finalization require(_sender == tokenSaleContract); } // Finalize method marks the point where token transfers are finally allowed for everybody function finalize() external returns (bool success) { require(!finalized); require(msg.sender == tokenSaleContract); finalized = true; Finalized(); return true; } // Implement a burn function to permit msg.sender to reduce its balance which also reduces totalSupply function burn(uint256 _value) public returns (bool success) { require(finalized); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); totalSupply = totalSupply.sub(_value); Burnt(msg.sender, _value); return true; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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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)
000000000000000000000000f04436b2edaa1b777045e1eefc6dba8bd2aebab8
-----Decoded View---------------
Arg [0] : _tokenSaleContract (address): 0xF04436B2eDaa1B777045E1EEFc6DBA8bD2aEbAB8
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000f04436b2edaa1b777045e1eefc6dba8bd2aebab8
Swarm Source
bzzr://0bda04732c67142e533d8019370cd6c5ef97c1206b5378b38930d806da8859a9
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