Derived Attributes

Credentials Community Group,

I would like to ask about derived attributes (e.g. over 21 which is derived from birthdate and the current date), about how they are implemented by credential repositories towards understanding whether more complex derived attributes such as electoral districts might be possible.

Electoral districts (https://en.wikipedia.org/wiki/Electoral_district) are dynamic regions. A digital wallet might inquire to a remote service about how an address or location maps to an electoral district (e.g. https://developers.google.com/civic-information/)

Cities, states and electoral districts could be useful for government feedback forms, recording audio messages for or writing letters to Congresspeople via websites.


Best regards,
Adam Sobieski