Something needs to be said about the role of anonymity and digital pseudonyms. This is a topic for an essay unto itself, of course. Are true names really needed? Why are they asked for? Does the nation state have any valid reason to demand they be used? People want to know who they are dealing with, for psychological/evolutionary reasons and to better ensure traceability should they need to locate a person to enforce the terms of a transaction. The purely anonymous person is perhaps justifiably viewed with suspicion. And yet pseudonyms are successful in many cases. We rarely know whether someone who presents himself by some name is “actually” that person. Authors, artists, performers, etc., often use pseudonyms. What matters is persistence and nonforgeability. Crypto provides this.