eth_blockNumber | Tempo

Tempo API method that returns the latest block number of the blockchain. A block number is a hexadecimal number representing the block’s position in the blockchain.

Tempo produces blocks approximately every 0.5 seconds with sub-second finality using Simplex Consensus.

Parameters

• none

Response

• result — the integer value of the node’s latest block number encoded as hexadecimal.

eth_blockNumber code examples

web3.js

const Web3 = require("web3");
const NODE_URL = "CHAINSTACK_NODE_URL";
const web3 = new Web3(NODE_URL);

async function getLatestBlockNumber() {
  const block = await web3.eth.getBlockNumber();
  console.log(`Latest block: ${block}`);
}

getLatestBlockNumber()

Use case

Tempo has sub-second block times (~0.5 seconds), making it ideal for applications that need to track real-time payment status. A DApp can use the current block number to determine when a payment transaction has been finalized.