[howderek]

Why would a ledger be necessary? Couldn't a root certificate store be used, such as today with HTTPS? Then, the bar doesn't even need to connect their verification system to the internet, other than for the occasional patch.

[bytelines]

It isn't. It just makes it cheap and easy. Its not a problem for a government agency to run a PKI, and for verifying identities they probably should.

But what about smaller entities, or even individuals. And what if they don't want to verify their identity but maybe an action.

Its not introducing anything new. It's just lowering the capital costs to doing it. Much like the internet lowered the costs to publishing and distributing an essay.