getLatestBlockhash RPC Method

Returns the latest blockhash

Version Restriction

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

params

objectoptional

Configuration object containing the following fields:

result

object

RpcResponse JSON object with value field set to a JSON object including:

$ curl https://api.devnet.solana.com -s -X \
>   POST -H "Content-Type: application/json" -d ' 
>   {
>     "jsonrpc": "2.0",
>     "id": 1,
>     "method": "getLatestBlockhash",
>     "params": [
>       {
>         "commitment": "processed"
>       }
>     ]
>   }
> '

Response

{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "slot": 2792
    },
    "value": {
      "blockhash": "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N",
      "lastValidBlockHeight": 3090
    }
  },
  "id": 1
}

$ curl https://api.devnet.solana.com -s -X \
>   POST -H "Content-Type: application/json" -d ' 
>   {
>     "jsonrpc": "2.0",
>     "id": 1,
>     "method": "getLatestBlockhash",
>     "params": [
>       {
>         "commitment": "processed"
>       }
>     ]
>   }
> '