> For the complete documentation index, see [llms.txt](https://docs.profile.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.profile.io/system-overview/profile.io-architecture/data-registries/did-registry.md).

# DID Registry

The Profile.io DID Registry is a core service that provides capabilities such as registering, managing, and resolving DIDs. Consumers can interact with the DID Registry to:

* Insert a DID document.
* Update a DID document.
* Revoke a DID (or the controlling keys).
* Resolve a DID (and obtain a DID document).

The Profile.io DID Registry will integrate with the DID Registry that is maintained by European Blockchain Services Infrastructure (EBSI) via an API connection.

Furthermore, Polygon ID provides a native DID Registry live on Polygon PoS network. The Profile.io DID registry will integrate with this also to pair with pre-existing Polygon DIDs.