isBlockhashValid RPC Method

Returns whether a blockhash is still valid or not

Version Restriction

This method is only available in solana-core v1.9 or newer. Please use getFeeCalculatorForBlockhash for solana-core v1.8 and below.

params

stringrequired

The blockhash of the block to evaluate, as base-58 encoded string

objectoptional

Configuration object containing the following fields:

result

bool

Whether the blockhash is still valid

$ curl https://api.devnet.solana.com -s -X \
>   POST -H "Content-Type: application/json" -d ' 
>   {
>     "jsonrpc": "2.0",
>     "id": 45,
>     "method": "isBlockhashValid",
>     "params": [
>       "J7rBdM6AecPDEZp8aPq5iPSNKVkU5Q76F3oAV4eW5wsW",
>       {
>         "commitment": "processed"
>       }
>     ]
>   }
> '

Response

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

$ curl https://api.devnet.solana.com -s -X \
>   POST -H "Content-Type: application/json" -d ' 
>   {
>     "jsonrpc": "2.0",
>     "id": 45,
>     "method": "isBlockhashValid",
>     "params": [
>       "J7rBdM6AecPDEZp8aPq5iPSNKVkU5Q76F3oAV4eW5wsW",
>       {
>         "commitment": "processed"
>       }
>     ]
>   }
> '