http://news.bbc.co.uk/2/hi/technology/3324883.stm
Adam Back is part of this team, I think.
Similar approach to Camram/hahscash. Memory-based approaches have been discussed. Why hasn't Camram explored them?
They were only invented recently, and indeed, I've been planning to introduce them to the camram arena. I wonder if they're being discussed as a result of the pub conversation I had recently with a Microsoft person on this very subject?
One major advantage of memory-based proof-of-work over hashcash is that the variation between machines is much smaller (estimated to be a factor of 4 from slowest to fastest PCs, for example).
BTW, for those who don't know, SpamAssassin now supports hashcash.
Cheers,
Ben.
-- http://www.apache-ssl.org/ben.html http://www.thebunker.net/
"There is no limit to what a man can do or how far he can go if he doesn't mind who gets the credit." - Robert Woodruff
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