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A comment on Proof of work - an unobtrusive alternative to captchas.

Re:Proof of work - an unobtrusive alternative to captchas by mike_esspe on Friday May 06, 2011 @06:31AM (#2520567)
Is it possible to use in javascript a memory-bound proof of work (http://www.google.com/search?q=memory+bound+proof+of+work), where the computation speed is bound by memory latency, not CPU speed?
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