RPC method

eth_getBlockByNumber on Zora

Supported on SwiftNodes

Everything below was measured on 2026-10-13 by calling eth_getBlockByNumber on Zora through the same endpoint customers use, and is re-measured weekly.

What eth_getBlockByNumber does

Returns a block by number or tag (latest, safe, finalized, pending, earliest): the header, and either the transaction hashes or the full transactions. Indexers, explorers and wallets use it to follow the chain.

eth_getBlockByNumber on Zora: what we measured

Header fields	26
Transactions per block	1, 1, 1, 1, 1 in five consecutive blocks
Response size, full transactions (true)	2.7 KB average
Response size, hashes only (false)	1.8 KB
Gas limit	30,000,000
Gas used in the latest block	46,242 (0.154% of the limit)
Base fee	252 wei
Tag "safe"	block 52,596,646
Tag "finalized"	block 52,596,646
Tag "pending"	block 52,601,073
Tag "earliest"	block 0

What is different on Zora

The header includes the fields added by London (EIP-1559 base fee), Shanghai (withdrawals), Cancun (EIP-4844 blob gas), Cancun (EIP-4788 beacon root), Prague (EIP-7685 requests). Code that assumes Ethereum's current header shape will parse it as is.

5 of the 5 transactions in those five blocks were system transactions (5 × type 0x7e, L1-to-L2 deposit (OP Stack)). They are not user activity: filter them out when counting transactions.

"finalized" was 4,425 blocks (about 2.5 hours) behind the head.

A real Zora block header

From block 52,601,068, as our endpoint returned it (long hex values shortened).

{
  "baseFeePerGas": "0xfc",
  "blobGasUsed": "0x0",
  "difficulty": "0x0",
  "excessBlobGas": "0x0",
  "extraData": "0x01000000fa000000060000000000000000",
  "gasLimit": "0x1c9c380",
  "gasUsed": "0xb4a2",
  "hash": "0x18a4288e33d1e07c2f55fd2fef643369007eead40f43ed0a4238d51a52056b32",
  "logsBloom": "0x0000000000000000…(256 bytes)",
  "miner": "0x4200000000000000000000000000000000000011",
  "mixHash": "0x2014a86cf225114c30194f83eb84fd877ad3595ac592783d6198c36a8fcca1e1",
  "nonce": "0x0000000000000000",
  "number": "0x322a0ec",
  "parentBeaconBlockRoot": "0x604a1e207cfc37c396334227631594cc0fad0ea47bbbfbb15e2b701c43fdf09f",
  "parentHash": "0xd8c02171d5247e2c196b9837995690396bd2d76e2135cb32424e7cd5e8f3bc73",
  "receiptsRoot": "0x90036dd53dbb282c2ad4c11c2dea1035e966a42c0f5478521ab7ee1706d56f08",
  "requestsHash": "0xe3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
  "size": "0x38b",
  "stateRoot": "0x272ae530af41a8229804d19a95837a7cde48b1a3ff19c26a2bdfa7cfe34666b5",
  "timestamp": "0x6ace29a7",
  "transactions": "1 transactions",
  "transactionsRoot": "0xe4567693f376f93b1cb65eff0bbd84870d1fd7801575e63df0f9428bbbbaed98",
  "uncles": [],
  "withdrawals": [],
  "withdrawalsRoot": "0xa1d53db99996cc6bf9837f0b728b623bf0ed93af5f921f4c16a53e9a3346d699"
}

Example request

curl -s https://rpc.swiftnodes.io/rpc/zora?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_getBlockByNumber","params":["latest",false]}'

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://rpc.swiftnodes.io/rpc/zora?key=YOUR_API_KEY"),
});

// Header plus transaction hashes (1.8 KB)
const block = await client.getBlock({ blockTag: "latest" });

// With full transactions (2.7 KB on average on Zora)
const full = await client.getBlock({ blockNumber: block.number, includeTransactions: true });
const userTxs = full.transactions.filter((t) => !["0x7e"].includes(t.typeHex));

// A block that will not be reorganised
const final = await client.getBlock({ blockTag: "finalized" });

Other methods on Zora

eth_getBlockByNumber on other chains

Frequently asked questions

Does Zora support eth_getBlockByNumber?

Yes. eth_getBlockByNumber answered on the SwiftNodes Zora endpoint when our weekly probe called it through the customer path (2026-10-13).

How many transactions are in each Zora block?

In five consecutive blocks on 2026-10-13: 1, 1, 1, 1, 1.

Zora endpoints, live block height and WebSocket status are on the Zora RPC page.

One key covers every chain we serve, and SwiftNodes has a free tier.