# Page Not Found

The URL `core-concepts/did-ddo` does not exist.

You might be looking for one of these pages:
- [DDO.js](https://docs.oceanprotocol.com/developers/ddo.js.md)
- [Developer FAQ](https://docs.oceanprotocol.com/developers/dev-faq.md)
- [Instantiate a DDO](https://docs.oceanprotocol.com/developers/ddo.js/instantiate-ddo.md)
- [Edit DDO Fields](https://docs.oceanprotocol.com/developers/ddo.js/edit-fields.md)
- [New DDO Specification](https://docs.oceanprotocol.com/developers/new-ddo-specification.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.oceanprotocol.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.oceanprotocol.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/developers/ddo.js.md`)
- Use `Accept: text/markdown` header for content negotiation