hood// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
// Minimal self-contained ERC20 with no pause / burn / mint extensions.
// Constructor mints `initialSupply` (in base units) to the deployer.
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract SimpleToken is IERC20 {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
// ERC-1046 metadata pointer. It MUST resolve to JSON; a bare image URI is invalid.
// It may be a hosted URI (https/ipfs) or an on-chain data:application/json URI.
string public tokenURI;
// Permissioned only over tokenURI updates; has no power over transfers, supply, etc.
// Set to address(0) by renounceMetadataOwner() to permanently freeze metadata.
address public metadataOwner;
event TokenURIUpdated(address indexed by, string oldURI, string newURI);
// ERC-7572 event used by off-chain indexers to refresh contract metadata.
event ContractURIUpdated();
event MetadataOwnerTransferred(address indexed from, address indexed to);
constructor(
string memory name_,
string memory symbol_,
uint8 decimals_,
uint256 initialSupply,
string memory tokenURI_
) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
tokenURI = tokenURI_;
metadataOwner = msg.sender;
_totalSupply = initialSupply;
_balances[msg.sender] = initialSupply;
emit Transfer(address(0), msg.sender, initialSupply);
emit MetadataOwnerTransferred(address(0), msg.sender);
emit ContractURIUpdated();
}
function setTokenURI(string calldata newURI) external {
require(msg.sender == metadataOwner, "not metadata owner");
string memory old = tokenURI;
tokenURI = newURI;
emit TokenURIUpdated(msg.sender, old, newURI);
emit ContractURIUpdated();
}
// ERC-7572 contract-level metadata alias. The ERC-1046 and ERC-7572 JSON
// schemas overlap on name/symbol/description/image, so both point to the
// same canonical document.
function contractURI() external view returns (string memory) {
return tokenURI;
}
function transferMetadataOwner(address newOwner) external {
require(msg.sender == metadataOwner, "not metadata owner");
emit MetadataOwnerTransferred(metadataOwner, newOwner);
metadataOwner = newOwner;
}
function renounceMetadataOwner() external {
require(msg.sender == metadataOwner, "not metadata owner");
emit MetadataOwnerTransferred(metadataOwner, address(0));
metadataOwner = address(0);
}
function name() external view returns (string memory) { return _name; }
function symbol() external view returns (string memory) { return _symbol; }
function decimals() external view returns (uint8) { return _decimals; }
function totalSupply() external view returns (uint256) { return _totalSupply; }
function balanceOf(address account) external view returns (uint256) { return _balances[account]; }
function allowance(address owner, address spender) external view returns (uint256) {
return _allowances[owner][spender];
}
function transfer(address to, uint256 amount) external returns (bool) {
_transfer(msg.sender, to, amount);
return true;
}
function approve(address spender, uint256 amount) external returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) external returns (bool) {
uint256 current = _allowances[from][msg.sender];
if (current != type(uint256).max) {
require(current >= amount, "ERC20: insufficient allowance");
unchecked { _approve(from, msg.sender, current - amount); }
}
_transfer(from, to, amount);
return true;
}
function _transfer(address from, address to, uint256 amount) internal {
require(from != address(0), "ERC20: from zero");
require(to != address(0), "ERC20: to zero");
uint256 bal = _balances[from];
require(bal >= amount, "ERC20: balance");
unchecked { _balances[from] = bal - amount; }
_balances[to] += amount;
emit Transfer(from, to, amount);
}
function _approve(address owner, address spender, uint256 amount) internal {
require(owner != address(0), "ERC20: approve from zero");
require(spender != address(0), "ERC20: approve to zero");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
}[
{
"type": "constructor",
"inputs": [
{
"name": "name_",
"type": "string",
"internalType": "string"
},
{
"name": "symbol_",
"type": "string",
"internalType": "string"
},
{
"name": "decimals_",
"type": "uint8",
"internalType": "uint8"
},
{
"name": "initialSupply",
"type": "uint256",
"internalType": "uint256"
},
{
"name": "tokenURI_",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "nonpayable"
},
{
"name": "Approval",
"type": "event",
"inputs": [
{
"name": "owner",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "ContractURIUpdated",
"type": "event",
"inputs": [],
"anonymous": false
},
{
"name": "MetadataOwnerTransferred",
"type": "event",
"inputs": [
{
"name": "from",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "to",
"type": "address",
"indexed": true,
"internalType": "address"
}
],
"anonymous": false
},
{
"name": "TokenURIUpdated",
"type": "event",
"inputs": [
{
"name": "by",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "oldURI",
"type": "string",
"indexed": false,
"internalType": "string"
},
{
"name": "newURI",
"type": "string",
"indexed": false,
"internalType": "string"
}
],
"anonymous": false
},
{
"name": "Transfer",
"type": "event",
"inputs": [
{
"name": "from",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "to",
"type": "address",
"indexed": true,
"internalType": "address"
},
{
"name": "value",
"type": "uint256",
"indexed": false,
"internalType": "uint256"
}
],
"anonymous": false
},
{
"name": "allowance",
"type": "function",
"inputs": [
{
"name": "owner",
"type": "address",
"internalType": "address"
},
{
"name": "spender",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "approve",
"type": "function",
"inputs": [
{
"name": "spender",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"name": "balanceOf",
"type": "function",
"inputs": [
{
"name": "account",
"type": "address",
"internalType": "address"
}
],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "contractURI",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "decimals",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint8",
"internalType": "uint8"
}
],
"stateMutability": "view"
},
{
"name": "metadataOwner",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "address",
"internalType": "address"
}
],
"stateMutability": "view"
},
{
"name": "name",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "renounceMetadataOwner",
"type": "function",
"inputs": [],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "setTokenURI",
"type": "function",
"inputs": [
{
"name": "newURI",
"type": "string",
"internalType": "string"
}
],
"outputs": [],
"stateMutability": "nonpayable"
},
{
"name": "symbol",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "tokenURI",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "view"
},
{
"name": "totalSupply",
"type": "function",
"inputs": [],
"outputs": [
{
"name": "",
"type": "uint256",
"internalType": "uint256"
}
],
"stateMutability": "view"
},
{
"name": "transfer",
"type": "function",
"inputs": [
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"name": "transferFrom",
"type": "function",
"inputs": [
{
"name": "from",
"type": "address",
"internalType": "address"
},
{
"name": "to",
"type": "address",
"internalType": "address"
},
{
"name": "amount",
"type": "uint256",
"internalType": "uint256"
}
],
"outputs": [
{
"name": "",
"type": "bool",
"internalType": "bool"
}
],
"stateMutability": "nonpayable"
},
{
"name": "transferMetadataOwner",
"type": "function",
"inputs": [
{
"name": "newOwner",
"type": "address",
"internalType": "address"
}
],
"outputs": [],
"stateMutability": "nonpayable"
}
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| Token | Symbol | Balance | Price | Value |
|---|---|---|---|---|
| no token holdings | ||||
| Type | Age | Block | Details |
|---|---|---|---|
| no cross-chain L1↔L2 transactions for this address | |||
| Txn Hash | Age | Event | Topics / Data |
|---|---|---|---|
| 0x16ce55…f129ba | 19 days agoMon, 27 Jul 2026 17:44:15 UTC | Transfer | [0] 0x000000000000…2e5fb996 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…0eea17a6 |
| 0x16ce55…f129ba | 19 days agoMon, 27 Jul 2026 17:44:15 UTC | Approval | [0] 0x000000000000…2e5fb996 [1] 0x000000000000…959e5cb2 data: 0x000000000000000000…00000000 |
| 0x16ce55…f129ba | 19 days agoMon, 27 Jul 2026 17:44:15 UTC | Approval | [0] 0x000000000000…2e5fb996 [1] 0x000000000000…959e5cb2 data: 0x000000000000000000…0eea17a6 |
| 0x16ce55…f129ba | 19 days agoMon, 27 Jul 2026 17:44:15 UTC | Transfer | [0] 0x000000000000…e443b1d1 [1] 0x000000000000…2e5fb996 data: 0x000000000000000000…0eea17a6 |
| 0x9f48d7…2d7331 | 19 days agoMon, 27 Jul 2026 16:42:05 UTC | 0x7ce1d7…8a78 | [0] 0x000000000000…4ebc2ba2 [1] 0x000000000000…00000000 |
| 0x2a98d7…b20059 | 19 days agoMon, 27 Jul 2026 16:37:22 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…d29adb7d |
| 0x718cbf…fa7898 | 19 days agoMon, 27 Jul 2026 16:37:19 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…6c344b43 |
| 0x718cbf…fa7898 | 19 days agoMon, 27 Jul 2026 16:37:19 UTC | Transfer | [0] 0x000000000000…4792121e [1] 0x000000000000…55691454 data: 0x000000000000000000…6c344b43 |
| 0xe752e5…367702 | 19 days agoMon, 27 Jul 2026 16:37:07 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…83dd34ff |
| 0x97e7c6…fb6c09 | 19 days agoMon, 27 Jul 2026 16:37:05 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…d8689686 |
| 0x97e7c6…fb6c09 | 19 days agoMon, 27 Jul 2026 16:37:05 UTC | Transfer | [0] 0x000000000000…4792121e [1] 0x000000000000…55691454 data: 0x000000000000000000…d8689686 |
| 0x365fb4…4277b0 | 19 days agoMon, 27 Jul 2026 16:36:59 UTC | Approval | [0] 0x000000000000…4792121e [1] 0x000000000000…55691454 data: 0xffffffffffffffffff…ffffffff |
| 0x8b8996…4ad8be | 19 days agoMon, 27 Jul 2026 16:36:44 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…f654b27b |
| 0x5926a2…dc87d0 | 19 days agoMon, 27 Jul 2026 16:36:42 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…4471e1bb |
| 0x5926a2…dc87d0 | 19 days agoMon, 27 Jul 2026 16:36:42 UTC | Transfer | [0] 0x000000000000…2745e79b [1] 0x000000000000…55691454 data: 0x000000000000000000…4471e1bb |
| 0x0e9e3f…537fec | 19 days agoMon, 27 Jul 2026 16:36:29 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…fa3ae065 |
| 0x880956…0e0331 | 19 days agoMon, 27 Jul 2026 16:36:26 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…88e3c376 |
| 0x880956…0e0331 | 19 days agoMon, 27 Jul 2026 16:36:26 UTC | Transfer | [0] 0x000000000000…2745e79b [1] 0x000000000000…55691454 data: 0x000000000000000000…88e3c376 |
| 0xd37a65…5945aa | 19 days agoMon, 27 Jul 2026 16:36:24 UTC | Approval | [0] 0x000000000000…2745e79b [1] 0x000000000000…55691454 data: 0xffffffffffffffffff…ffffffff |
| 0x763e86…0f12a7 | 19 days agoMon, 27 Jul 2026 16:32:43 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…532bd5c5 |
| 0xc7ae8b…1328e5 | 19 days agoMon, 27 Jul 2026 16:32:42 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…c10d39e3 |
| 0xc7ae8b…1328e5 | 19 days agoMon, 27 Jul 2026 16:32:42 UTC | Transfer | [0] 0x000000000000…eec7c648 [1] 0x000000000000…55691454 data: 0x000000000000000000…c10d39e3 |
| 0x756b5a…b864e0 | 19 days agoMon, 27 Jul 2026 16:32:33 UTC | Transfer | [0] 0x000000000000…0ca284cd [1] 0x000000000000…5357b9b2 data: 0x000000000000000000…6670f67c |
| 0x063065…3082a2 | 19 days agoMon, 27 Jul 2026 16:32:32 UTC | Transfer | [0] 0x000000000000…55691454 [1] 0x000000000000…0ca284cd data: 0x000000000000000000…821a73c6 |
| 0x063065…3082a2 | 19 days agoMon, 27 Jul 2026 16:32:32 UTC | Transfer | [0] 0x000000000000…eec7c648 [1] 0x000000000000…55691454 data: 0x000000000000000000…821a73c6 |
| Transaction Hash | Method | Block | Age | From | To | Amount | Token | ||
|---|---|---|---|---|---|---|---|---|---|
| no token transfers for this address yet | |||||||||
| Transaction Hash | Method | Block | Age | From | To | Type | Item | ||
|---|---|---|---|---|---|---|---|---|---|
| no NFT transfers for this address yet | |||||||||
| Block | Age | Parent Transaction Hash | Type | Method | From | To | Value | |
|---|---|---|---|---|---|---|---|---|
| no internal transactions found for this address yet (traced blocks + on-demand) | ||||||||
| Transaction Hash | Method ? | Block | Age | From | To | Amount | Txn Fee ? | ||
|---|---|---|---|---|---|---|---|---|---|
| 0x9f48d7…2d7331 | renounceMetadataOwner | 20,883,714 | 19 days agoMon, 27 Jul 2026 16:42:05 UTC | 0xc2ef…2ba2 | IN | Test | $0.000 ETH | 0.00000086 | |
| 0x365fb4…4277b0 | Approve | 20,880,803 | 19 days agoMon, 27 Jul 2026 16:36:59 UTC | 0x9777…121e | IN | Test | $0.000 ETH | 0.00000172 | |
| 0xd37a65…5945aa | Approve | 20,880,471 | 19 days agoMon, 27 Jul 2026 16:36:24 UTC | 0x7db2…e79b | IN | Test | $0.000 ETH | 0.00000172 | |
| 0x8dbf10…d13a09 | Approve | 20,877,130 | 19 days agoMon, 27 Jul 2026 16:30:34 UTC | 0x40b1…c648 | IN | Test | $0.000 ETH | 0.00000172 | |
| 0xbe4515…6d21e1 | Approve | 20,873,116 | 19 days agoMon, 27 Jul 2026 16:23:53 UTC | 0x09c7…1ac0 | IN | Test | $0.000 ETH | 0.00000169 | |
| 0xe19177…c5461a | Approve | 20,872,873 | 19 days agoMon, 27 Jul 2026 16:23:28 UTC | 0xf8b2…7154 | IN | Test | $0.000 ETH | 0.00000169 | |
| 0x8b104e…d1f8e1 | Approve | 20,872,505 | 19 days agoMon, 27 Jul 2026 16:22:53 UTC | 0x3d0f…beae | IN | Test | $0.000 ETH | 0.00000170 | |
| 0x790946…915356 | Approve | 20,869,890 | 19 days agoMon, 27 Jul 2026 16:18:30 UTC | 0x48e2…5775 | IN | Test | $0.000 ETH | 0.00000170 | |
| 0x35dc4b…ed85a0 | Approve | 20,214,576 | 20 days agoSun, 26 Jul 2026 22:02:42 UTC | 0x1407…b1d1 | IN | Test | $0.000 ETH | 0.00000227 | |
| 0xa392ba…7a3f59 | Approve | 20,212,448 | 20 days agoSun, 26 Jul 2026 21:59:09 UTC | 0xc2ef…2ba2 | IN | Test | $0.000 ETH | 0.00000226 |