Address Contract Partially Verified
Address
0x70da48f4B7e83c386ef983D4CEF4e58c2c09D8Ac
Balance
0 ETH
Nonce
1
Code Size
6705 bytes
Creator
0x48b7278d...e29B at tx 0x95507442...fb0896
Indexed Transactions
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Contract Bytecode
6705 bytes
0x608060405234801561001057600080fd5b506004361061010b5760003560e01c80638da5cb5b116100a2578063d4ee1d9011610071578063d4ee1d90146105b9578063d73dd62314610603578063dc39d06d14610669578063dd62ed3e146106cf578063f2fde38b146107475761010b565b80638da5cb5b1461038957806395d89b41146103d3578063a9059cbb14610456578063cae9ca51146104bc5761010b565b8063313ce567116100de578063313ce5671461029d57806366188463146102c157806370a082311461032757806379ba50971461037f5761010b565b806306fdde0314610110578063095ea7b31461019357806318160ddd146101f957806323b872dd14610217575b600080fd5b61011861078b565b6040518080602001828103825283818151815260200191508051906020019080838360005b8381101561015857808201518184015260208101905061013d565b50505050905090810190601f1680156101855780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b6101df600480360360408110156101a957600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610829565b604051808215151515815260200191505060405180910390f35b61020161091b565b6040518082815260200191505060405180910390f35b6102836004803603606081101561022d57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610976565b604051808215151515815260200191505060405180910390f35b6102a5610c21565b604051808260ff1660ff16815260200191505060405180910390f35b61030d600480360360408110156102d757600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610c34565b604051808215151515815260200191505060405180910390f35b6103696004803603602081101561033d57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610ec5565b6040518082815260200191505060405180910390f35b610387610f0e565b005b6103916110ab565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6103db6110d0565b6040518080602001828103825283818151815260200191508051906020019080838360005b8381101561041b578082015181840152602081019050610400565b50505050905090810190601f1680156104485780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b6104a26004803603604081101561046c57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291908035906020019092919050505061116e565b604051808215151515815260200191505060405180910390f35b61059f600480360360608110156104d257600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291908035906020019064010000000081111561051957600080fd5b82018360208201111561052b57600080fd5b8035906020019184600183028401116401000000008311171561054d57600080fd5b91908080601f016020809104026020016040519081016040528093929190818152602001838380828437600081840152601f19601f820116905080830192505050505050509192919290505050611309565b604051808215151515815260200191505060405180910390f35b6105c161153c565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b61064f6004803603604081101561061957600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050611562565b604051808215151515815260200191505060405180910390f35b6106b56004803603604081101561067f57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291908035906020019092919050505061175e565b604051808215151515815260200191505060405180910390f35b610731600480360360408110156106e557600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff1690602001909291905050506118a4565b6040518082815260200191505060405180910390f35b6107896004803603602081101561075d57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061192b565b005b60038054600181600116156101000203166002900480601f0160208091040260200160405190810160405280929190818152602001828054600181600116156101000203166002900480156108215780601f106107f657610100808354040283529160200191610821565b820191906000526020600020905b81548152906001019060200180831161080457829003601f168201915b505050505081565b600081600760003373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020819055508273ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925846040518082815260200191505060405180910390a36001905092915050565b6000610971600660008073ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020546005546119c890919063ffffffff16565b905090565b60006109ca82600660008773ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020546119c8909190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Verified Source Code Partial Match
Compiler: v0.5.11+commit.c082d0b4
EVM: petersburg
Optimization: No
QurasToken.sol 232 lines
pragma solidity ^0.5.11; //compiles with 0.5.0 and above
// ----------------------------------------------------------------------------
// 'XQC' token contract
//
// Symbol : XQC
// Name : Quras Token
// Total supply: 888888888
// Decimals : 8
//
// The MIT Licence.
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
library SafeMath { //contract --> library : compiler version up
function add(uint a, uint b) internal pure returns (uint c) { //public -> internal : compiler version up
c = a + b;
require(c >= a);
}
function sub(uint a, uint b) internal pure returns (uint c) { //public -> internal : compiler version up
require(b <= a);
c = a - b;
}
function mul(uint a, uint b) internal pure returns (uint c) { //public -> internal : compiler version up
c = a * b;
require(a == 0 || c / a == b);
}
function div(uint a, uint b) internal pure returns (uint c) { //public -> internal : compiler version up
require(b > 0);
c = a / b;
}
}
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
function totalSupply() public view returns (uint); //constant -> view : compiler version up
function balanceOf(address tokenOwner) public view returns (uint balance); //constant -> view : compiler version up
function allowance(address tokenOwner, address spender) public view returns (uint remaining); //constant -> view : compiler version up
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);
event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
// ----------------------------------------------------------------------------
// Contract function to receive approval and execute function in one call
//
// Borrowed from MiniMeToken
// ----------------------------------------------------------------------------
contract ApproveAndCallFallBack {
function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; //bytes -> memory : compiler version up
}
// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
address public owner;
address public newOwner;
event OwnershipTransferred(address indexed _from, address indexed _to);
constructor() public { //function Owned -> constructor : compiler version up
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address _newOwner) public onlyOwner {
newOwner = _newOwner;
}
function acceptOwnership() public {
require(msg.sender == newOwner);
emit OwnershipTransferred(owner, newOwner); //add emit : compiler version up
owner = newOwner;
newOwner = address(0);
}
}
// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// fixed supply
// ----------------------------------------------------------------------------
contract QurasToken is ERC20Interface, Owned { //SafeMath -> using SafeMath for uint; : compiler version up
using SafeMath for uint;
string public symbol;
string public name;
uint8 public decimals;
uint _totalSupply; //unit public -> uint : compiler version up
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public { //function -> constructor : compiler version up
symbol = "XQC";
name = "Quras Token";
decimals = 8;
_totalSupply = 88888888800000000;
balances[owner] = _totalSupply; //direct address -> owner : compiler version up
emit Transfer(address(0), owner, _totalSupply); //add emit, direct address -> owner : compiler version up
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) { //constant -> view : compiler version up
return _totalSupply.sub(balances[address(0)]);
}
// ------------------------------------------------------------------------
// Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) { //constant -> view : compiler version up
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to `to` account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = balances[msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
emit Transfer(msg.sender, to, tokens); //add emit : compiler version up
return true;
}
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;
}
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;
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens); //add emit : compiler version up
return true;
}
// ------------------------------------------------------------------------
// Transfer `tokens` from the `from` account to the `to` account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the `from` account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = balances[from].sub(tokens);
allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
emit Transfer(from, to, tokens); //add emit : compiler version up
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) { //constant -> view : compiler version up
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account. The `spender` contract function
// `receiveApproval(...)` is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens); //add emit : compiler version up
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
newOwner 0xd4ee1d90 → address
owner 0x8da5cb5b → address
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 9 functions
These functions modify contract state and require a wallet transaction to execute.
acceptOwnership 0x79ba5097
No parameters
approve 0x095ea7b3
address spender
uint256 tokens
returns: bool
approveAndCall 0xcae9ca51
address spender
uint256 tokens
bytes data
returns: bool
decreaseApproval 0x66188463
address _spender
uint256 _subtractedValue
returns: bool
increaseApproval 0xd73dd623
address _spender
uint256 _addedValue
returns: bool
transfer 0xa9059cbb
address to
uint256 tokens
returns: bool
transferAnyERC20Token 0xdc39d06d
address tokenAddress
uint256 tokens
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 tokens
returns: bool
transferOwnership 0xf2fde38b
address _newOwner
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