This was your message to his list?
I sent a bunch of messages to the list before and after, but yes that was the main one about b-money. BTW, for anyone interested in the history, looking back at the responses in my libtech archive (which I was not supposed to keep, according to the list rules) it seems clear that Nick already had similar ideas when I posted that message and was trying to solve the "Byzantine Agreement" problem in a practical way, whereas I for some reason confidently stated "an ideal broadcast channel [...] can be implemented with existing cryptographic tool...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.