Fantastic book by a true legend (who passed away earlier this year). I also highly recommend that collection you cite (True Names: And the Opening of the Cyberspace Frontier), which contains both the original story and bunch of great essays by Stallman, Minksy, Timothy May, and more. It adds a lot, and you can see a lot of the thinking that went into btc and related tech.

I also recommend pretty much everything else Vinge ever wrote. He was one of the greats.