# Subscan

## What is a Block Explorer

Blockchain ecosystems typically have a service that indexes the blocks of the chain and presents the information read from the blocks in a readable and searchable manner. This kind of service is called Block Explorer, and the main goal for such tools is to provide observability on what's happening on the chain.

## Subscan

In the Substrate ecosystem, the most advanced Block Explorer is called Subscan.

Subscan supports indexing the Humanode network. Use the link below to see the Humanode page on Subscan.

{% embed url="<https://humanode.subscan.io/>" %}


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# 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://gitbook.humanode.io/docs/tools-and-services/subscan.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.