isBlockhashValid

Returns whether a block hash is still valid.

Parameters

• blockhash: (string) [requiredl] - The base58 encoded hash of the block.
• config: (object) [optional] - Configuration object with the following options:
  • commitment: (string) [optional] - The commitment level to use for the query. The default is finalized. Possible values are:
    • finalized - Queries the most recent block confirmed by a super majority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized.
    • confirmed - Queries the most recent block that has been voted on by a super majority of the cluster.
    • processed - Queries its most recent block. The block may still be skipped by the cluster.
  • epoch: (integer) [optional] - The epoch for which to query the rewards. If not specified, the current epoch is used.
  • minContextSlot: [optional] - The minimum slot to use for the query.

Returns

result - true if the block hash is still valid; otherwise false.

Request

• curl

curl https://solana-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0", "id":1, "method":"isBlockhashValid", "params":["4JsC66MuiW8EbromjB3h64NmZQAH24rAWxwK5raQFTt9", {"commitment":"processed"}]}'

Response

• JSON

{
  "jsonrpc":"2.0",
  "result": {
    "context": {
      "apiVersion":"2.1.16",
      "slot":333329792
    },
    "value":false
  },
  "id":1
}