{}

{
  "slot": "333390974",
  "blockhash": "CiqX6nU67eVCFqxh6TJ3LF8bDqjtnD2wULRMME917QSY",
  "last_valid_block_height": "311630163"
}

​
Authorizations

​
x-token
string
required
Your Helius API key. You can get one for free in the dashboard.

​
Message

This method takes an empty request and returns the latest blockhash and its corresponding last valid block height. 
{}

​
Response

​
slot
string
The current slot number.
​
blockhash
string
The latest blockhash as a base-58 encoded string.
​
last_valid_block_height
string
The last block height at which the returned blockhash will be valid.
{
  "slot": "333390974",
  "blockhash": "CiqX6nU67eVCFqxh6TJ3LF8bDqjtnD2wULRMME917QSY",
  "last_valid_block_height": "311630163"
}