Optimism: Ethereum Layer 2 Scaling Solution

import { ethers } from 'ethers';

// Connect to Optimism Mainnet
const provider = new ethers.JsonRpcProvider('https://mainnet.optimism.io');

async function checkOptimismBalance() {
  try {
    // Get the latest block number
    const blockNumber = await provider.getBlockNumber();
    console.log('Current Optimism block:', blockNumber);
    
    // Check ETH balance for an address
    const address = '0x742d35Cc6634C0532925a3b8D4C2C2C8C2C2C8C2';
    const balance = await provider.getBalance(address);
    const balanceInEth = ethers.formatEther(balance);
    
    console.log(`Balance: ${balanceInEth} ETH`);
    
    // Get network information
    const network = await provider.getNetwork();
    console.log('Network:', network.name, 'Chain ID:', network.chainId);
    
  } catch (error) {
    console.error('Error connecting to Optimism:', error);
  }
}

checkOptimismBalance();