[snuxoll]

Why does the block chain have to be applied to every problem? We already have a solution for this, many businesses and the US military use it - smart cards.

Generate a private key on the card, have the government sign it, keep it locked up with a PIN/password (and self destruct after X number of invalid attempts). You can verify authenticity offline as long as you can request the card to sign a response and verify the signature, problem solved.

[jaunkst]

It doesn't but it would be more ideal to have a decentralized identification system.