# 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. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.profile.io/system-overview/profile.io-architecture/data-registries/did-registry.md?ask= ``` 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. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.