[chetanbhasin]

But I think it's a good use case for organization issued IDs, tickets, or even things like driver's license.

[CleverLikeAnOx]

Agreed! I think this is the start of something that will be big in a decade as adoption goes up.

[tomjen3]

Anonymous verification of age is a nice one: Site a generates a bit of bytes, you then take that to a government portal, login and get it signed, then you return with the signature and now the site knows nothing whatsoever about you, other than that you could get a government site to assert that you are old enough to order beer online.

The government site doesn't have to know anything about you either, other than you requested a beer token.