For anyone interested in the anonymity paper discussed on the last page, I recently discovered that the author has created a revised version of the paper and has posted a thread in the altcoin discussion forum where it is being discussed in more detail:
Anonymity in the Mini-Blockchain schemeA hypothetical question: suppose the author's scheme is feasibly workable and doable. Would you accept to implement it in your xcn, that means a hard fork at some point?