# Page Not Found

The URL `stamps/guide-to-model-based-detection` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Guide to Model-Based Detection](https://support.passport.xyz/passport-knowledge-base/model-based-detection/guide-to-model-based-detection.md)
- [What are Model-Based Stamps: Ethereum and NFT](https://support.passport.xyz/passport-knowledge-base/stamps/what-are-model-based-stamps-ethereum-and-nft.md)
- [How to verify Stamps on Human Passport?](https://support.passport.xyz/passport-knowledge-base/stamps/how-do-i-add-passport-stamps.md)
- [What are Passport Stamps?](https://support.passport.xyz/passport-knowledge-base/stamps/what-are-stamps.md)
- [Passport Stamp Weights](https://support.passport.xyz/passport-knowledge-base/stamps/how-is-gitcoin-passports-score-calculated.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://support.passport.xyz/passport-knowledge-base/model-based-detection/guide-to-model-based-detection.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://support.passport.xyz/passport-knowledge-base/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://support.passport.xyz/passport-knowledge-base/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., `/passport-knowledge-base/model-based-detection/guide-to-model-based-detection.md`).

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