# Page Not Found

The URL `gitcoin-passport/how-do-i-add-passport-stamps/guide-to-add-trusta-labs-stamp-to-passport` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [What are the Grants Round rules I need to follow?](https://support.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants/general-questions/are-there-any-grant-rules-i-need-to-follow.md)
- [I see a bug or I've got a question, what do I do?](https://support.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants/general-questions/i-see-a-bug-or-ive-got-a-question-what-do-i-do.md)
- [How do you prevent Sybil attacks?](https://support.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants/general-questions/how-do-you-prevent-sybil-attacks.md)
- [What is Gitcoin Grants Stack?](https://support.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants-program/what-is-gitcoin-grants-stack.md)
- [What are Public Goods?](https://support.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants/general-questions/what-are-public-goods.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.gitcoin.co/gitcoin-knowledge-base/gitcoin-grants/general-questions/are-there-any-grant-rules-i-need-to-follow.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.gitcoin.co/gitcoin-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.gitcoin.co/gitcoin-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., `/gitcoin-knowledge-base/gitcoin-grants/general-questions/are-there-any-grant-rules-i-need-to-follow.md`).

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