[MattPalmer1086]

There are privacy preserving technologies that can do this.

See the work of Jan Camenisch for example: https://jan.camenisch.org

But I doubt anything so well thought out would be implemented for this. Current government suggestions are credit card checks, checking identity against government passport records, or your mobile phone service provider.

I don't even understand the mobile phone one. My son has a mobile phone, but I'm the account holder according to the phone company. He's too young to enter into contracts for a start!

[1_player]

This might be a more helpful link: https://en.m.wikipedia.org/wiki/Direct_Anonymous_Attestation

[MattPalmer1086]

I'd suggest his other work on IdentityMixer is more relevant here.

https://hyperledger-fabric.readthedocs.io/en/release-1.3/ide...

DAA solves a different problem.