MemesCashV2Token
0x110ee8c641c81e20b08c7bbf20b71bb6a28973a7
Verification
Verified
v0.8.26+commit.8a97fa7a
Type
Contract
4,322 bytes
ABI entries
43
28 read · 4 write
License
none
Contract information
- Address
- 0x110ee8c641c81e20b08c7bbf20b71bb6a28973a7
- Chain
- Robinhood Chain (4663)
- Compiler
- v0.8.26+commit.8a97fa7a
- Optimization
- Enabled
- Creator
- 0x32305d0F69…5f75Ed0973
- Creation tx
- 0xcc5bc8c301…6926771ba2
Token
- Name
- V2 Canary
- Symbol
- V2CANARY
- Decimals
- 18
- Holders
- 6
- Market
- View token page →
Read contract (28)
ARBSYS() → address
BURN_ADDRESS() → address
BUY_COOLDOWN_L2_BLOCKS() → uint256
CREATOR_INITIAL_MAX() → uint256
GUARD_L2_BLOCKS() → uint256
GUARD_SECONDS() → uint256
TOTAL_SUPPLY() → uint256
WALLET_MAX() → uint256
allowance(address, address) → uint256
balanceOf(address) → uint256
createdAt() → uint256
createdAtL2Block() → uint256
creator() → address
creatorInitialBuyOpen() → bool
currentL2Block() → uint256
decimals() → uint8
factory() → address
lastSuccessfulPoolBuyL2Block() → uint256
launchFinalized() → bool
launchGuardActive() → bool
locker() → address
name() → string
officialPool() → address
router() → address
symbol() → string
totalSupply() → uint256
v3Factory() → address
weth() → address
Events (4)
ApprovalBuyCooldownStartedLaunchFinalizedTransfer
ABI
[
{
"inputs": [
{
"internalType": "string",
"name": "name_",
"type": "string"
},
{
"internalType": "string",
"name": "symbol_",
"type": "string"
},
{
"internalType": "address",
"name": "factory_",
"type": "address"
},
{
"internalType": "address",
"name": "creator_",
"type": "address"
},
{
"internalType": "address",
"name": "router_",
"type": "address"
},
{
"internalType": "address",
"name": "locker_",
"type": "address"
},
{
"internalType": "address",
"name": "weth_",
"type": "address"
},
{
"internalType": "address",
"name": "v3Factory_",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"inputs": [
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "allowance",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "needed",
"type": "uint256"
}
],
"name": "ERC20InsufficientAllowance",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "sender",
"type": "address"
},
{
"internalType": "uint256",
"name": "balance",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "needed",
"type": "uint256"
}
],
"name": "ERC20InsufficientBalance",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "approver",
"type": "address"
}
],
"name": "ERC20InvalidApprover",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "receiver",
"type": "address"
}
],
"name": "ERC20InvalidReceiver",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "sender",
"type": "address"
}
],
"name": "ERC20InvalidSender",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "spender",
"type": "address"
}
],
"name": "ERC20InvalidSpender",
"type": "error"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "Approval",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "buyer",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "buyL2Block",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "nextEligibleL2Block",
"type": "uint256"
}
],
"name": "BuyCooldownStarted",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "uint256",
"name": "timestamp",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "l2Block",
"type": "uint256"
}
],
"name": "LaunchFinalized",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "to",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "Transfer",
"type": "event"
},
{
"inputs": [],
"name": "ARBSYS",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "BURN_ADDRESS",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "BUY_COOLDOWN_L2_BLOCKS",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "CREATOR_INITIAL_MAX",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "GUARD_L2_BLOCKS",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "GUARD_SECONDS",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "TOTAL_SUPPLY",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "WALLET_MAX",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "address",
"name": "spender",
"type": "address"
}
],
"name": "allowance",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "approve",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "account",
"type": "address"
}
],
"name": "balanceOf",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "createdAt",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "createdAtL2Block",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "creator",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "creatorInitialBuyOpen",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "currentL2Block",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "decimals",
"outputs": [
{
"internalType": "uint8",
"name": "",
"type": "uint8"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "factory",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "finalizeLaunch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "lastSuccessfulPoolBuyL2Block",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "launchFinalized",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "launchGuardActive",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "locker",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "name",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "officialPool",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "router",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "symbol",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "totalSupply",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "transferFrom",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "v3Factory",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "weth",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
}
]Source code
// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IArbSys} from "./interfaces/IMemesCashV2.sol";
import {V3LaunchMath} from "./libraries/V3LaunchMath.sol";
/// @notice Plain ERC20 after an immutable, time-limited launch guard.
contract MemesCashV2Token is ERC20 {
uint256 public constant TOTAL_SUPPLY = 1_000_000_000 ether;
uint256 public constant GUARD_SECONDS = 600;
uint256 public constant GUARD_L2_BLOCKS = 5_000;
uint256 public constant BUY_COOLDOWN_L2_BLOCKS = 1;
uint256 public constant WALLET_MAX = 25_000_000 ether;
uint256 public constant CREATOR_INITIAL_MAX = 500_000_000 ether;
address public constant ARBSYS = address(0x64);
address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
address public immutable factory;
address public immutable creator;
address public immutable router;
address public immutable locker;
address public immutable weth;
address public immutable v3Factory;
address public immutable officialPool;
uint256 public immutable createdAt;
uint256 public immutable createdAtL2Block;
bool public launchFinalized;
bool public creatorInitialBuyOpen = true;
uint256 public lastSuccessfulPoolBuyL2Block;
event LaunchFinalized(uint256 timestamp, uint256 l2Block);
event BuyCooldownStarted(address indexed buyer, uint256 buyL2Block, uint256 nextEligibleL2Block);
constructor(
string memory name_,
string memory symbol_,
address factory_,
address creator_,
address router_,
address locker_,
address weth_,
address v3Factory_
) ERC20(name_, symbol_) {
require(
factory_ != address(0) && creator_ != address(0) && router_ != address(0) && locker_ != address(0)
&& weth_ != address(0) && v3Factory_ != address(0),
"ZERO_ADDR"
);
factory = factory_;
creator = creator_;
router = router_;
locker = locker_;
weth = weth_;
v3Factory = v3Factory_;
officialPool = V3LaunchMath.poolAddress(v3Factory_, address(this), weth_, 10_000);
createdAt = block.timestamp;
createdAtL2Block = _l2Block();
_mint(factory_, TOTAL_SUPPLY);
}
function finalizeLaunch() external {
require(msg.sender == factory, "NOT_FACTORY");
require(!launchFinalized, "FINALIZED");
launchFinalized = true;
creatorInitialBuyOpen = false;
emit LaunchFinalized(block.timestamp, _l2Block());
}
function launchGuardActive() public view returns (bool) {
return block.timestamp < createdAt + GUARD_SECONDS || _l2Block() < createdAtL2Block + GUARD_L2_BLOCKS;
}
function currentL2Block() external view returns (uint256) {
return _l2Block();
}
function _update(address from, address to, uint256 value) internal override {
if (from != address(0) && to != address(0) && launchGuardActive()) {
_enforceGuard(from, to, value);
}
super._update(from, to, value);
}
function _enforceGuard(address from, address to, uint256 value) internal {
if (to == officialPool || to == locker || to == BURN_ADDRESS) return;
if (from == locker) return;
// Website sell transit is allowed; pool-to-router output is forbidden to prevent cap bypass.
if (to == router) {
require(from != officialPool, "POOL_TO_ROUTER");
return;
}
if (from == officialPool && to == creator && creatorInitialBuyOpen && !launchFinalized) {
require(balanceOf(creator) + value <= CREATOR_INITIAL_MAX, "CREATOR_INITIAL_MAX");
creatorInitialBuyOpen = false;
_startBuyCooldown(creator);
return;
}
require(balanceOf(to) + value <= WALLET_MAX, "WALLET_MAX");
if (from == officialPool) _startBuyCooldown(to);
}
function _startBuyCooldown(address buyer) internal {
uint256 l2Block = _l2Block();
uint256 previousBuy = lastSuccessfulPoolBuyL2Block;
if (previousBuy != 0) {
require(l2Block >= previousBuy + BUY_COOLDOWN_L2_BLOCKS + 1, "BUY_COOLDOWN");
}
lastSuccessfulPoolBuyL2Block = l2Block;
emit BuyCooldownStarted(buyer, l2Block, l2Block + BUY_COOLDOWN_L2_BLOCKS + 1);
}
function _l2Block() internal view returns (uint256 number) {
(bool ok, bytes memory data) = ARBSYS.staticcall(abi.encodeCall(IArbSys.arbBlockNumber, ()));
require(ok && data.length >= 32, "ARBSYS_UNAVAILABLE");
number = abi.decode(data, (uint256));
}
}
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