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POST
/
efb0a5eccd2caa5135eb54eba6f7f300
eth_getBlockByHash
curl --request POST \
  --url https://optimism-mainnet.core.chainstack.com/efb0a5eccd2caa5135eb54eba6f7f300 \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "method": "eth_getBlockByHash",
  "id": 1,
  "params": [
    "0x7e4aea365093a183b0df5f003f26144ef04ec8a6e7f4910356590c5fc7b1671f",
    true
  ]
}
'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": {}
}

Documentation Index

Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt

Use this file to discover all available pages before exploring further.

Optimism API method that retrieves a block’s information by its hash. The block hash is a unique identifier for each block in the blockchain, represented as a hexadecimal number.
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​
Parameters

  • hash — the hash of the block to retrieve, as a hexadecimal string.
  • fullTransactionObjects — a boolean indicating whether to return full transaction objects or only their hashes. If true, full transaction objects are returned; if false, only the hashes of the transactions are returned.

​
Response

  • result — an object containing the block’s information, including the block number, timestamp, transactions, and more. If fullTransactionObjects is true, this will include detailed information about each transaction in the block.

​
Use case

The eth_getBlockByHash method is useful for applications that need to retrieve specific blocks from the blockchain, such as block explorers, wallets, or applications that process or display block information. For example, a block explorer might use this method to display detailed information about a block and its transactions to users.

Body

application/json
​
jsonrpc
string
default:2.0
​
method
string
default:eth_getBlockByHash
​
id
integer
default:1
​
params
(string | boolean)[]

Response

200 - application/json

The block information by hash

​
jsonrpc
string
​
id
integer
​
result
object
Last modified on May 18, 2026