Getblockhash

getblockhash

post

Returns the block hash of the block at the given height in the blockchain. You must provide a block height (0-based index).

Authorizations

api-keyAuth

api-keystringRequired

Body

application/json

jsonrpcstringRequiredExample: 1.0

idstringRequired

methodstring · enumRequiredPossible values:

paramsinteger[]Required

Parameters:

1. height (integer) — The height (index) of the block.

Example: [855000]

Responses

200

Block hash successfully retrieved

application/json

resultstringOptional

The hash of the block at the specified height

Example: 0000000000000000000a1e63be6bb1d1f4e6d2a345234a4a6b8f86e4f0de3c5a

errorobject · nullableOptional

Null if successful, otherwise contains error info

idstringOptional

The ID of the request

401

Unauthorized

application/json

500

Internal Server Error

application/json

post

/

HTTPcURLJavaScriptPython

POST / HTTP/1.1
Host: btc.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 75

{
  "jsonrpc": "1.0",
  "id": "curltest",
  "method": "getblockhash",
  "params": [
    855000
  ]
}

{
  "result": "0000000000000000000a1e63be6bb1d1f4e6d2a345234a4a6b8f86e4f0de3c5a",
  "error": null,
  "id": "curltest"
}