> ## Documentation Index
> Fetch the complete documentation index at: https://docs.validationcloud.io/llms.txt
> Use this file to discover all available pages before exploring further.

# GET /block-height/:height

Returns the hash of the block currently at `height`.

This method will use `10` [Compute Units](/nodeapi/about/billing).

***

## **Parameters**

**`block height`** -  required.

Example: `910883`

## Returns

Returns the hash of the block currently at `height`.

```json wrap theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
00000000000000000001129bff5a606bd4999e3594613fa13453a0f3635ed35b
```

<CodeGroup>
  ```bash title="mainnet" theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  curl https://mainnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/block-height/:height \
   -X GET
  ```

  ```bash title="testnet" theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  curl https://testnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/block-height/:height \
   -X GET
  ```
</CodeGroup>


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