Address Contract Partially Verified
Address
0x5Dcdd01B9B3E0b11e2bA7a952C1FaD47808FEBD5
Balance
0 ETH
Nonce
1
Code Size
4880 bytes
Creator
0x4c2d9A70...9fad at tx 0xda8775a2...3614c4
Indexed Transactions
0
Contract Bytecode
4880 bytes
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Verified Source Code Partial Match
Compiler: v0.6.9+commit.3e3065ac
EVM: istanbul
Optimization: No
IQV4U.sol 89 lines
// "SPDX-License-Identifier: UNLICENSED"
pragma solidity 0.6.9;
contract IQV4U {
using SafeMath for uint256;
string public constant symbol = "IQV";
string public constant name = "IQV4U";
uint8 public constant decimals = 16;
uint256 _totalSupply;
address public owner;
mapping(address => uint256) balances;
mapping(address => mapping (address => uint256)) allowances;
constructor() public {
owner = msg.sender;
_totalSupply = 4000000000 * 10 ** uint256(decimals);
balances[owner] = _totalSupply;
emit Transfer(address(0), owner, _totalSupply);
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view returns (uint256 balance) {
return balances[account];
}
function transfer(address _to, uint256 _amount) public returns (bool success) {
require(msg.sender != address(0), "ERC20: approve from the zero address");
require(_to != address(0), "ERC20: approve from the zero address");
require(balances[msg.sender] >= _amount);
balances[msg.sender] = balances[msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(msg.sender, _to, _amount);
return true;
}
function transferFrom(address _from, address _to, uint256 _amount) public returns (bool success) {
require(_from != address(0), "ERC20: approve from the zero address");
require(_to != address(0), "ERC20: approve from the zero address");
require(balances[_from] >= _amount && allowances[_from][msg.sender] >= _amount);
balances[_from] = balances[_from].sub(_amount);
allowances[_from][msg.sender] = allowances[_from][msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(_from, _to, _amount);
return true;
}
function approve(address spender, uint256 _amount) public returns (bool) {
_approve(msg.sender, spender, _amount);
return true;
}
function _approve(address _owner, address _spender, uint256 _amount) internal {
require(_owner != address(0), "ERC20: approve from the zero address");
require(_spender != address(0), "ERC20: approve to the zero address");
allowances[_owner][_spender] = _amount;
emit Approval(_owner, _spender, _amount);
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowances[_owner][_spender];
}
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(msg.sender, spender, allowances[msg.sender][spender].sub(subtractedValue));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(msg.sender, spender, allowances[msg.sender][spender].add(addedValue));
return true;
}
event Transfer(address indexed _from, address indexed _to, uint _value);
event Approval(address indexed _owner, address indexed _spender, uint _value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
uint256 c = a - b;
return c;
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
owner 0x8da5cb5b → address
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 5 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 _amount
returns: bool
decreaseAllowance 0xa457c2d7
address spender
uint256 subtractedValue
returns: bool
increaseAllowance 0x39509351
address spender
uint256 addedValue
returns: bool
transfer 0xa9059cbb
address _to
uint256 _amount
returns: bool
transferFrom 0x23b872dd
address _from
address _to
uint256 _amount
returns: bool
Recent Transactions
No transactions found for this address