# Page Not Found

The URL `self-sovereign-identity-ssi/decentralized-identifier-did` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Decentralized Identifier (DID)](https://docs.hypersign.id/core-concepts/decentralized-identifier-did.md)
- [Hypersign DID SDK](https://docs.hypersign.id/hypersign-identity-network/developers/hid-ssi-sdk/hypersign-decentralized-identifier-dids.md)
- [DID Registry](https://docs.hypersign.id/core-concepts/decentralized-identifier-did/did-registry.md)
- [DID Threshold](https://docs.hypersign.id/core-concepts/decentralized-identifier-did/did-threshold.md)
- [Adding multiple controller to DID](https://docs.hypersign.id/core-concepts/decentralized-identifier-did/adding-multiple-controller-to-did.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://docs.hypersign.id/core-concepts/decentralized-identifier-did.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://docs.hypersign.id/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.hypersign.id/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., `/core-concepts/decentralized-identifier-did.md`).

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