> For the complete documentation index, see [llms.txt](https://docs.meeco.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.meeco.me/svx-v3/guides/api-guides/dids/did-registration.md).

# DID Registrar

DID registration covers the three operations that modify a DID, namely "Create", "Update" and "Deactivate". It takes a DID and (often) a DID document as input to perform the requested operation.

Registration is performed as defined in the [DID Core](https://www.w3.org/TR/did-core/) and [DID Registration](https://w3c-ccg.github.io/did-resolution/) (draft) specifications. The implementation is based on the [Universal Registrar](https://github.com/decentralized-identity/universal-registrar) project.