isBlockhashValid

Returns whether a blockhash is still valid or not.

POST

isBlockhashValid

cURL

curl --request POST \
  --url 'https://mainnet.helius-rpc.com/?api-key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "id": "45",
  "method": "isBlockhashValid",
  "params": [
    "J7rBdM6AecPDEZp8aPq5iPSNKVkU5Q76F3oAV4eW5wsW",
    {
      "commitment": "processed"
    }
  ]
}
'

200

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

Request Parameters

blockhash · string · required

Blockhash to check validity status for, as a base-58 encoded string.

commitment · string

The commitment level for the request.

• confirmed
• finalized
• processed

minContextSlot · number

The minimum slot that the request can be evaluated at.

Authorizations

api-key · string · query · required

Your Helius API key. You can get one for free in the dashboard.

Body

application/json

jsonrpc · enum<string> · default: 2.0

The JSON-RPC protocol version.

Available options: 2.0

Example:

"2.0"

id · string · default: 1

A unique identifier for the request.

Example:

"45"

method · enum<string> · default: isBlockhashValid

The name of the RPC method to invoke.

Available options: isBlockhashValid

Example:

"isBlockhashValid"

params · (string | object)[]

Parameters for evaluating blockhash validity.

Blockhash to check validity status for, as a base-58 encoded string.

Example:

"J7rBdM6AecPDEZp8aPq5iPSNKVkU5Q76F3oAV4eW5wsW"

Response

200

application/json

Successfully evaluated blockhash validity.

jsonrpc · enum<string>

The JSON-RPC protocol version.

Available options: 2.0

Example:

"2.0"

id · string

Identifier matching the request.

Example:

"45"

result · object

Blockhash validity result.

Show child attributes