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

Re:Proof of work - an unobtrusive alternative to captchas by dchest on Friday May 06, 2011 @06:34AM (#2520573)
Audio CAPTCHAs solve this problem.
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Re:Proof of work - an unobtrusive alternative to captchas by squirrel on Sunday May 08, 2011 @04:04AM (#2525476)
Not entirely - what about deaf and blind people, or those with cognitive disabilities?
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