# getblockhash - Dogecoin

This method returns the hash of a block at a given height in the best-block-chain.

## Parameters

| Parameter | Type   | Required | Description               |
| --------- | ------ | -------- | ------------------------- |
| height    | number | Yes      | The block height (index). |

## Request

{% tabs %}
{% tab title="cURL" %}
{% code title="curl request" %}

```bash
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "getblockhash",
    "params": [3904788],
    "id": "getblock.io"
}'
```

{% endcode %}
{% endtab %}

{% tab title="Axios" %}
{% code title="axios example" %}

```javascript
const axios = require('axios');

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "getblockhash",
    "params": [3904788],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data)))
    .catch(error => console.log(error));
```

{% endcode %}
{% endtab %}

{% tab title="Request" %}
{% code title="python example" %}

```python
import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "getblockhash",
    "params": [3904788],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)
```

{% endcode %}
{% endtab %}

{% tab title="Rust" %}
{% code title="rust example" %}

```rust
use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "getblockhash",
            "params": [3904788],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}
```

{% endcode %}
{% endtab %}
{% endtabs %}

## Response

{% code title="response.json" %}

```json
{
    "result": "24f64485ea05250ce75a73b3549afad05e078a7d8abd54e695a957dadee264fa",
    "error": null,
    "id": "getblock.io"
}
```

{% endcode %}

## Response Parameters

| Field  | Type   | Description                             |
| ------ | ------ | --------------------------------------- |
| result | string | The block hash at the specified height. |
| error  | null   | Error object (null if no error).        |
| id     | string | Request identifier.                     |

## Use Case

The `getblockhash` method is essential for:

* Converting block heights to hashes
* Block explorer navigation
* Historical data retrieval
* Chain traversal operations
* Synchronization checkpoints

## Error Handling

| Error Code | Message                   | Cause                               |
| ---------- | ------------------------- | ----------------------------------- |
| -8         | Block height out of range | Height exceeds current block count. |
| 403        | Forbidden                 | Missing or invalid ACCESS-TOKEN.    |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.getblock.io/api-reference/dogecoin-doge/getblockhash-dogecoin.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.