getLatestBlockhash RPC Method

Description

Returns the latest blockhash.

Parameters

1. object (array) - The configuration object with the following fields:
   • commitment (string, optional) - The level of commitment required for the query. The options include:
     • finalized - 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 - The node will query the most recent block that has been voted on by the supermajority of the cluster
     • processed - The node will query its most recent block. Note that the block may not be complete
   • minContextSlot (integer, optional) - The minimum slot at which the request can be evaluated

Returns

The RpcResponse JSON object with the following fields:

• context - The information about the current state of the program
  • apiVersion - The version of the Solana RPC API to use
  • slot - An integer representing the slot for which to retrieve the fee calculator
• value - A JSON object with the following fields:
  • blockhash - The block hash encoded as base-58 string
  • lastValidBlockHeight - The last block height at which the blockhash will be valid

Code Examples

curl "https://rpc-mainnet.solanatracker.io/?api_key=YOUR_API_KEY_HERE" \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","id":1, "method":"getLatestBlockhash", "params": [{"commitment":"processed"}]}'