# Page Not Found

The URL `files/4l23pADH4YvWFUUcbIyp` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [On-Balance Volume (OBV)](https://academy.coinlegs.com/advances/on-balance-volume-obv.md)
- [Double Bottom / DoubleTop](https://academy.coinlegs.com/patterns/double-bottom-doubletop.md)
- [TD Sequential](https://academy.coinlegs.com/advances/td-sequential.md)
- [Golden Cross/Death Cross](https://academy.coinlegs.com/fundamentals/golden-cross-death-cross.md)
- [Relative Strength Index (RSI)](https://academy.coinlegs.com/fundamentals/relative-strength-index-rsi.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://academy.coinlegs.com/advances/on-balance-volume-obv.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.

### Option 2 — Browse the documentation index

Full index: https://academy.coinlegs.com/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://academy.coinlegs.com/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/advances/on-balance-volume-obv.md`).

You may also use `Accept: text/markdown` header for content negotiation.