> For the complete documentation index, see [llms.txt](https://teamhycon.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teamhycon.gitbook.io/docs/api-v1-1/miscellaneous-tools/query-if-block-is-an-uncle-block.md).

# Query if block is an uncle block

**Path Parameter**

| Parameter   | Type | Required | Description                      |
| ----------- | ---- | -------- | -------------------------------- |
| `blockhash` | text | Yes      | Hash representation of the block |

**Response - `200 OK, text/plain`**

`true` if block hash is an uncle block; else `false`GET/api/v1/isUncleBlock/{blockhash}

**Example request**

```
$ curl -X GET http://localhost:2442/api/v1/isUncleBlock/wVTPoSvrAbC63zy7RorvRW4BfuiqgQozUyqYDaYE77J \
    -H 'Content-Type: application/json;charset=utf-8'
```

**Response (Success)**

```
false
```