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A comment on Show HN: Replace CAPTCHA with Proof-of-Work.

Re:Show HN: Replace CAPTCHA with Proof-of-Work by TTPrograms on Wednesday June 25, 2014 @08:45PM (#7947576)
Equivalently, you could just make the user pay a tiny amount of BTC or similar. Then they can cache the work so there's no UI delay.
[ Parent | on HN ]
Re:Show HN: Replace CAPTCHA with Proof-of-Work by hippich on Wednesday June 25, 2014 @09:36PM (#7947716)
While not with jQuery.hashcash.io plugin, but with direct use of API you can make it transparent for use to calculate it in background after form focus event for example. I am working on complete API documentation so third-party widget could be created.
[ Parent | on HN ]