Find a Data Registration from a Data Instance

[srosset81]

It would be very useful if, given a Data Instance, we could easily find the relative Data Registration.

For example with a simple Link header when we do a GET or a HEAD on a given resource:

Link: <https://mypod.store/alice/data/as/event>; rel="http://www.w3.org/ns/solid/interop#hasDataRegistration"

Solid already include such a link to find the storage linked with a given resource (source)

[srosset81]

Link: <https://mypod.store/alice/data/as/event>; rel="http://www.w3.org/ns/solid/interop#hasDataRegistration"

FYI I implemented exactly this in ActivityPods