Address Contract Partially Verified
Address
0x8efC4b144Da218886201A77e2F94c17b3A5B779A
Balance
0.000300000 ETH
Nonce
1
Code Size
8242 bytes
Creator
0xFCAeeDcC...1cF7 at tx 0x3308aa76...004f82
Indexed Transactions
0
Contract Bytecode
8242 bytes
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Verified Source Code Partial Match
Compiler: v0.5.1+commit.c8a2cb62
EVM: byzantium
Optimization: No
CogmentoToken.sol 248 lines
pragma solidity ^0.5.1;
// File: contracts/Cogmento.sol
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender)
external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value)
external returns (bool);
function transferFrom(address from, address to, uint256 value)
external returns (bool);
event Transfer(
address indexed from,
address indexed to,
uint256 value
);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0); // Solidity only automatically asserts 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;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two numbers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
}
contract Owned {
address public owner;
address public newOwner;
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address _newOwner) public onlyOwner {
newOwner = _newOwner;
}
function acceptOwnership() public {
require(msg.sender == newOwner);
owner = newOwner;
}
}
contract CogmentoToken is IERC20, Owned {
using SafeMath for uint256;
// Constructor - Sets the token Owner
constructor() public {
owner = 0xFCAeeDcC9DfEB56af067f3d4e79caB8ABDd31cF7;
contractAddress = address(this);
_balances[owner] = 1000000000 * 10 ** decimals;
_balances[contractAddress] = 1000000000 * 10 ** decimals;
emit Transfer(address(0), owner, 1000000000 * 10 ** decimals);
emit Transfer(address(0), contractAddress, 1000000000 * 10 ** decimals);
}
// Events
event Error(string err);
event Mint(uint mintAmount, address to);
event Burn(uint burnAmount, address from);
// Token Setup
string public constant name = "Cogmento";
string public constant symbol = "COGS";
uint256 public constant decimals = 18;
uint256 public supply = 1000000000 * 10 ** decimals;
address private contractAddress;
uint256 public ICOPrice;
// Balances for each account
mapping(address => uint256) _balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) public _allowed;
// Get the total supply of tokens
function totalSupply() public view returns (uint) {
return supply;
}
// Get the token balance for account `tokenOwner`
function balanceOf(address tokenOwner) public view returns (uint balance) {
return _balances[tokenOwner];
}
// Get the allowance of funds beteen a token holder and a spender
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return _allowed[tokenOwner][spender];
}
// Transfer the balance from owner's account to another account
function transfer(address to, uint value) public returns (bool success) {
require(_balances[msg.sender] >= value);
require(to != contractAddress);
_balances[msg.sender] = _balances[msg.sender].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(msg.sender, to, value);
return true;
}
// Sets how much a sender is allowed to use of an owners funds
function approve(address spender, uint value) public returns (bool success) {
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// Transfer from function, pulls from allowance
function transferFrom(address from, address to, uint value) public returns (bool success) {
require(value <= balanceOf(from));
require(value <= allowance(from, to));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
_allowed[from][to] = _allowed[from][to].sub(value);
emit Transfer(from, to, value);
return true;
}
// Users Cannot acidentaly send ETH to the contract
function () external payable {
revert();
}
// Owner Can mint new tokens
function mint(uint256 amount, address to) public onlyOwner {
_balances[to] = _balances[to].add(amount);
supply = supply.add(amount);
emit Mint(amount, to);
}
// Owner can burn existing tokens
function burn(uint256 amount, address from) public onlyOwner {
require(_balances[from] >= amount);
_balances[from] = _balances[from].sub(amount);
supply = supply.sub(amount);
emit Burn(amount, from);
}
// Change ICO Price
function setICOPrice(uint256 _newPrice) public onlyOwner {
ICOPrice = _newPrice;
}
// See how many tokens are available to be purcahsed.
function getRemainingICOBalance() public view returns (uint256) {
return _balances[contractAddress];
}
// Top up ICO balance
function topUpICO(uint256 _amount) public onlyOwner {
require(_balances[owner] >= _amount);
_balances[owner] = _balances[owner].sub(_amount);
_balances[contractAddress] = _balances[contractAddress].add(_amount);
emit Transfer(msg.sender, contractAddress, _amount);
}
// Buy tokens
function buyTokens() public payable {
require(ICOPrice > 0);
require(msg.value >= ICOPrice);
uint256 affordAmount = msg.value / ICOPrice;
require(_balances[contractAddress] >= affordAmount * 10 ** decimals);
_balances[contractAddress] = _balances[contractAddress].sub(affordAmount * 10 ** decimals);
_balances[msg.sender] = _balances[msg.sender].add(affordAmount * 10 ** decimals);
emit Transfer(contractAddress, msg.sender, affordAmount * 10 ** decimals);
}
// Withdraw ETH
function withdrawContractBalance() public onlyOwner {
msg.sender.transfer(contractAddress.balance);
}
// Cancel and withdraw ICO tokens
function withdrawContractTokens(uint256 _amount) public onlyOwner {
require(_balances[contractAddress] >= _amount);
_balances[contractAddress] = _balances[contractAddress].sub(_amount);
_balances[owner] = _balances[owner].add(_amount);
emit Transfer(contractAddress, owner, _amount);
}
}
Read Contract
ICOPrice 0x59dd35da → uint256
_allowed 0xba0fb861 → uint256
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint256
getRemainingICOBalance 0xb92bdfdd → uint256
name 0x06fdde03 → string
newOwner 0xd4ee1d90 → address
owner 0x8da5cb5b → address
supply 0x047fc9aa → uint256
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 12 functions
These functions modify contract state and require a wallet transaction to execute.
acceptOwnership 0x79ba5097
No parameters
approve 0x095ea7b3
address spender
uint256 value
returns: bool
burn 0xfcd3533c
uint256 amount
address from
buyTokens 0xd0febe4c
No parameters
mint 0x94bf804d
uint256 amount
address to
setICOPrice 0x25b5160c
uint256 _newPrice
topUpICO 0xe0d08be6
uint256 _amount
transfer 0xa9059cbb
address to
uint256 value
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 value
returns: bool
transferOwnership 0xf2fde38b
address _newOwner
withdrawContractBalance 0xbfab3db9
No parameters
withdrawContractTokens 0x6a22ed8c
uint256 _amount
Recent Transactions
No transactions found for this address