isBlockhashValid RPC Method

Parameters

blockhash

string

REQUIRED

object

finalized

confirmed

processed

minContextSlot

integer

Returns

result

Request

curl https://docs-demo.solana-mainnet.quiknode.pro/ \
  -X POST \
  -H "Content-Type: application/json" \
  -d '
    {
      "id":45,
      "jsonrpc":"2.0",
      "method":"isBlockhashValid",
      "params":[
       "JupRhwjrF5fAcs6dFhLH59r3TJFvbcyLP2NRM8UGH9H"
      ]
    }
'

import { createSolanaRpc, blockhash } from "@solana/kit";

(async () => {
  const solanaRpc = createSolanaRpc("https://docs-demo.solana-mainnet.quiknode.pro/");

  const blockHash = blockhash("EPnQzurHhxLXGtk73B5zvWaRoGpkzd5tU9ZGVAULbQoJ");
  try {
    const isValid = await solanaRpc.isBlockhashValid(blockHash)
    console.log("Is blockhash valid:", isValid);
  } catch (error) {
    console.error("Error checking blockhash validity:", error);
  }
})();

use reqwest::header;
use reqwest::Client;
use std::error::Error;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let mut headers = header::HeaderMap::new();
    headers.insert("Content-Type", "application/json".parse().unwrap());

    let client = Client::new();
    let json_data = r#"
    {
        "id": 45,
        "jsonrpc": "2.0",
        "method": "isBlockhashValid",
        "params": [
        JupRhwjrF5fAcs6dFhLH59r3TJFvbcyLP2NRM8UGH9H
        ]
    }
    "#;
    let response = client
        .post("https://docs-demo.solana-mainnet.quiknode.pro/")
        .headers(headers)
        .body(json_data)
        .send()
        .await?; 

    let body = response.text().await?;
    println!("{}", body);

    Ok(())
}

Response

{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "slot": 2483
    },
    "value": false
  },
  "id": 45
}

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isBlockhashValid RPC Method

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Parameters

Returns