> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/ontology-ont/ont_getblockhash.md).

# getblockhash - Ontology

Example code for the getblockhash json-rpc method. Сomplete guide on how to use getblockhash json-rpc in GetBlock.io Web3 documentation.

#### Parameters

`height` - integer

block height

`verbose` - integer

optional

1 for verbose response

#### Request

```java
curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0",
"method": "getblockhash",
"params": [16224151, 1],
"id": "getblock.io"}'
```

#### Response

```java
{
    "desc": "SUCCESS",
    "error": 0,
    "id": "getblock.io",
    "jsonrpc": "2.0",
    "result": "b4553dd4a5b3255aa78d20b2f2f0ec9d3a52d6ef2c99bfa23fd1f67001d9dd8b"
}
```