# Page Not Found

The URL `key-derivation/0002` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [BIP32 Key Derivation Scheme](https://bsv.brc.dev/key-derivation/0032.md)
- [BSV Key Derivation Scheme (BKDS)](https://bsv.brc.dev/key-derivation/0042.md)
- [Protecting BRC-69 Key Linkage Information in Transit](https://bsv.brc.dev/key-derivation/0072.md)
- [Security Levels, Protocol IDs, Key IDs and Counterparties](https://bsv.brc.dev/key-derivation/0043.md)
- [Admin-reserved and Prohibited Key Derivation Protocols](https://bsv.brc.dev/key-derivation/0044.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://bsv.brc.dev/key-derivation/0032.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://bsv.brc.dev/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://bsv.brc.dev/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., `/key-derivation/0032.md`).

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