Address Contract Partially Verified
Address
0xF0E50840A6e67964216660Ebe9DE44ecd366AC28
Balance
0 ETH
Nonce
1
Code Size
2672 bytes
Creator
0x54eAde20...039e at tx 0x1722ca72...b79ff7
Indexed Transactions
0
Contract Bytecode
2672 bytes
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Verified Source Code Partial Match
Compiler: v0.8.21+commit.d9974bed
EVM: shanghai
Optimization: Yes (200 runs)
LockstakeSky.sol 146 lines
// SPDX-License-Identifier: AGPL-3.0-or-later
/// LockstakeSky.sol -- LockstakeSky token
// Copyright (C) 2017, 2018, 2019 dbrock, rain, mrchico
// Copyright (C) 2023 Dai Foundation
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
pragma solidity ^0.8.21;
contract LockstakeSky {
mapping (address => uint256) public wards;
// --- ERC20 Data ---
string public constant name = "LockstakeSky";
string public constant symbol = "lsSKY";
string public constant version = "1";
uint8 public constant decimals = 18;
uint256 public totalSupply;
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// --- Events ---
event Rely(address indexed usr);
event Deny(address indexed usr);
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
modifier auth {
require(wards[msg.sender] == 1, "LockstakeSky/not-authorized");
_;
}
constructor() {
wards[msg.sender] = 1;
emit Rely(msg.sender);
}
// --- Administration ---
function rely(address usr) external auth {
wards[usr] = 1;
emit Rely(usr);
}
function deny(address usr) external auth {
wards[usr] = 0;
emit Deny(usr);
}
// --- ERC20 Mutations ---
function transfer(address to, uint256 value) external returns (bool) {
require(to != address(0) && to != address(this), "LockstakeSky/invalid-address");
uint256 balance = balanceOf[msg.sender];
require(balance >= value, "LockstakeSky/insufficient-balance");
unchecked {
balanceOf[msg.sender] = balance - value;
balanceOf[to] += value; // note: we don't need an overflow check here b/c sum of all balances == totalSupply
}
emit Transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint256 value) external returns (bool) {
require(to != address(0) && to != address(this), "LockstakeSky/invalid-address");
uint256 balance = balanceOf[from];
require(balance >= value, "LockstakeSky/insufficient-balance");
if (from != msg.sender) {
uint256 allowed = allowance[from][msg.sender];
if (allowed != type(uint256).max) {
require(allowed >= value, "LockstakeSky/insufficient-allowance");
unchecked {
allowance[from][msg.sender] = allowed - value;
}
}
}
unchecked {
balanceOf[from] = balance - value;
balanceOf[to] += value; // note: we don't need an overflow check here b/c sum of all balances == totalSupply
}
emit Transfer(from, to, value);
return true;
}
function approve(address spender, uint256 value) external returns (bool) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// --- Mint/Burn ---
function mint(address to, uint256 value) external auth {
require(to != address(0) && to != address(this), "LockstakeSky/invalid-address");
unchecked {
balanceOf[to] = balanceOf[to] + value; // note: we don't need an overflow check here b/c balanceOf[to] <= totalSupply and there is an overflow check below
}
totalSupply = totalSupply + value;
emit Transfer(address(0), to, value);
}
function burn(address from, uint256 value) external {
uint256 balance = balanceOf[from];
require(balance >= value, "LockstakeSky/insufficient-balance");
if (from != msg.sender) {
uint256 allowed = allowance[from][msg.sender];
if (allowed != type(uint256).max) {
require(allowed >= value, "LockstakeSky/insufficient-allowance");
unchecked {
allowance[from][msg.sender] = allowed - value;
}
}
}
unchecked {
balanceOf[from] = balance - value; // note: we don't need overflow checks b/c require(balance >= value) and balance <= totalSupply
totalSupply = totalSupply - value;
}
emit Transfer(from, address(0), value);
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
version 0x54fd4d50 → string
wards 0xbf353dbb → uint256
Write Contract 7 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 value
returns: bool
burn 0x9dc29fac
address from
uint256 value
deny 0x9c52a7f1
address usr
mint 0x40c10f19
address to
uint256 value
rely 0x65fae35e
address usr
transfer 0xa9059cbb
address to
uint256 value
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 value
returns: bool
Recent Transactions
No transactions found for this address