Solana RPC · Blocks & slots

POST isBlockhashValid

Whether a blockhash is still usable.

Endpoint

POST  https://solrpc.infinityblocks.io/<API_KEY>

Standard Solana JSON-RPC 2.0 over HTTP POST. The API key is part of the URL path.

Parameters

ParamTypeRequiredDescription
blockhashstringyesBase-58 blockhash.
configobjectnocommitment.

Request

curl -s https://solrpc.infinityblocks.io/<API_KEY> \
  -X POST -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"isBlockhashValid","params":["<BLOCKHASH>",{"commitment":"confirmed"}]}'

With @solana/web3.js

const ok = await rpc.isBlockhashValid("<BLOCKHASH>");

Response

{ "jsonrpc": "2.0", "id": 1, "result": { "context": { "slot": 423214981 }, "value": true } }

Try it

Run isBlockhashValidlive · POST

Replace placeholders (e.g. <ADDRESS>) with real values. Your key is stored only in this browser.

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