Apologies if this is a duplicate, but trying to add more actual information to the pile of cryptonote derivatives -- BBR's Zoidberg wrote up a whitepaper about his Blockchain PoW construction and its realization in Wild Keccak:

http://boolberry.com/files/Block_Chain_Based_Proof_of_Work.pdf

As a follow-up to his earlier explanations of
  Improved anonymity:  http://www.slideshare.net/boolberry/boolberry-solves-cryptonoteflaws-37055246
  Ring signature pruning:    http://www.slideshare.net/boolberry/boolberry-reduces-blockchain-bloat

I'm sure there will be pushback on these as there was to the others, but kudos to him and the Boolberry team for putting it out there for others to read, steal from, and criticize.  (Disclaimer:  I looked at an earlier draft of this one and provided some minor writing feedback.  I'm not an author of it and am not part of the BBR team.)