CAPTCHAs on the Blockchain. Cool Right.

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1 Response

  1. Alex Stoneham says:

    Hmm, I need to rethink about it, what about volatile and transient CAPTCHA modes. Does one need to records the event of getting past a checkpoint or does one just get past the checkpoint without recording it?

    You may end up with reams of data never referenced once the CAPTCHA is initially verified.

    the solution of generating and verifying CAPTCHAs would still have merit so the solution should work for apps and workflows that just want the checkpoint and don’t want it recorded.

    In this case, Distributed CAPTCHA Clients can still create and verify blockchain records but it would be for a temporary write.

    You may want to use a circular chain or the concept of a circular array for the transient mode CAPTCHAs.

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