isBlockhashValid

Returns whether a blockhash is still valid or not.

This method will use 30 Compute Units.

---

Parameters

• blockhash string Required. The hash of the block encoded as base-58 string.

• object optional. Configuration object containing the following fields:

  • commitment string. The level of commitment required for the query. The options include:

    • finalized string. The node will query the most recent block confirmed by the supermajority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized.

    • confirmed string. The node will query the most recent block that has been voted on by the supermajority of the cluster.

    • processed string. The node will query its most recent block. Note that the block may not be complete.

  • minContextSlot integer. The minimum slot at which the request can be evaluated.

Returns

result True if the blockhash is still valid otherwise false.

// Result
{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "slot": 2483
    },
    "value": false
  },
  "id": 1
}

mainnet

curl https://mainnet.solana.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '
    {
      "id":45,
      "jsonrpc":"2.0",
      "method":"isBlockhashValid",
      "params":[
        "ENTER_BLOCKHASH_ID_HERE",
        {"commitment":"processed"}
      ]
    }
'

devnet

curl https://devnet.solana.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '
    {
      "id":45,
      "jsonrpc":"2.0",
      "method":"isBlockhashValid",
      "params":[
        "ENTER_BLOCKHASH_ID_HERE",
        {"commitment":"processed"}
      ]
    }
'