Dust is woefully underspecified and uses an ancient design with no forward secrecy and no (specified) message or sender authentication of any kind. Blockchain,

Dust is woefully underspecified and uses an ancient design with no forward secrecy and no (specified) message or sender authentication of any kind. Blockchain, as usual, purports to solve a problem nobody had. Dust doesn't try to address the simplest, best-understood problems we have for reputation systems on chained blocks.