Comment by supriyo-biswas

I understand that the showcased project is meant as a "joke", but a few days ago I briefly saw a Recaptcha with a hand icon amongst its three other options. Curious, I clicked on the hand and it asked me for consent to record my gesture, with an assurance that the video would not be stored.

I've never been able to see the hand icon ever since and no one else seems to have documented its appearance. However, after some searching, I was able to find [1] (archived at [2]) which should serve as sufficient proof of this existing and not something that my mind hallucinated out of those "drink a verification can" memes.

(For people trying to visit [1], you should copy the square brackets at the end of the link, which HN leaves out when adding the anchor tag.)

[1] https://google.com/recaptcha/challenge/hand-gestures?d=[]

[2] https://archive.is/nYJjh