I watched your safebox explainer video and I have a use case.

You mentioned "medical records" and it got me thinking. When you go to a Dr. they ask you to fill out forms. These multiple pages of forms sometimes have you enter name, address, etc, MULTIPLE TIMES.

Using this app, the flow could be:

1. Doctor office says scan this code to fill out the forms.

2. The office has checked off boxes from a pre-determined list of personal info they are requesting, with a time limit on the request. (i need your address for 1 year, etc)

3. Your first time doing this: you will fill in all the data they request, then next time, you will just see a bunch of check boxes of which items they are requesting, and you "approve" or "deny" these requests.

4. So Dr. A needs this info, you enter it. You go to Dr. B, and just approve their request.

5. The app transmits the data they need with no repetition (on the same form, or over multiple dr visits or multiple doctors.)

The durability of the Nostr protocol is fine, but this would need to work even if everyone abandoned nostr, and the only relays were YOU and the doctors office.