@switchingsocial tbh this kind of auth requires _slight_ centralization; it'd be very tricky to pull away from
@jalcine @switchingsocial Actually I don't see why a service like this needs a third party at all, let alone a central one. You generate randomly some visual question which a human can easily answer but a machine only with AI. This needs code that easily could run on every webserver where you need a captcha.
@switchingsocial I checked out alternative to and it seems there are a few, like Securimage, Sblam! and Negative Captcha. There is also visualCaptcha though it is no longer being actively developed it works, apparently.
The idea I have seen that seems the best to me is to include a hidden form field and then a bot will fill it out whereas a normal user cannot see it and will not fill it out.
If the field is filled out then the form entry is rejected.
Maybe getting a specific use case would be more beneficial though as this may not cover all circumstances.
@switchingsocial this map based #Recapture was just announced on the recent #openstreetmap weekly newsletter https://wiki.hsr.ch/StefanKeller/wiki.cgi?ReMAPTCHA
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