BitPeople: A Proof-of-Unique-Human System

BitPeople is based on pseudonym events, global and simultaneous verification events that occur at the exact same time for every person on Earth. In these events, people are randomly paired together, 1-on-1, to verify that the other is a person, in a pseudo-anonymous context, over video chat. The event lasts 15 minutes, and the proof-of-unique-human is that you are with the same person for the whole event. The proofs, valid for a month, can be disposed of once no longer valid, and are untraceable from month to month.