No. As long as there is a mechanism for adding new identities to the system, (presumably you want this, because people can be born), people can disguise themsel

No. As long as there is a mechanism for adding new identities to the system, (presumably you want this, because people can be born), people can disguise themselves as new people. This is not trivial to accomplish, but there's no law of nature preventing you from growing a remote control infant should the need arise. It's certainly impractical, but new people are legitimately allowed to enter the system, and there's no way to establish that someone does not know something (in this case knowing something would be the RC baby actually being me, I know how to say goo goo ga ga, and you can't prove I know more than that). That's obviously a silly example, but the point is that soulbinding isn't a cryptographic primitive. There's just no such thing. Not only is non-dystopian identity impossible, No amount of dystopia will change this. Even a totally authenticated system is vulnerable to the "Add a new person that I control" attack. It's not current technology, but it's also not science fiction, and in simple fact, a lesser version of this attack happens all the time. People who have more kids get more representation in government. I don't think that we should totally ignore this effect, but it's certainly useful to mostly ignore it. Anyway, there is no way to establish a sophisticated adversary's unique identity and also allow new identities to be created based on phenomena external to the system.