Captcha proves you're human. HATCHA proves you're not

backlit4034 76 points 81 comments June 26, 2026
github.com · View on Hacker News

Discussion Highlights (19 comments)

nephihaha

Weirdly, I can see how this might be useful.

Phelinofist

The time limits seem pretty generous

thomas-skowron

"humans need not apply" is a nice touch

felooboolooomba

I feel violated.

d--b

I’d have called it NATCHA but whatever

consumer451

This still makes no sense to me, for practical applications. Let’s say the goal is a bot-only social network. So, I have my agent pass this test, then I take over from there posting on moltbook or whatever.

remix2000

Missed opportunity of tricking llms into mining crypto xþ

codingjoe

GOTCHA would have been a funny name too ;)

sscaryterry

Ah man, I'm too old.

rvz

This is quite frankly unnecessary. Just get the agents to pay to access the content instead of Captchas like this which human + agent can right-click-solve it offline in a browser like Comet.

xpct

> CAPTCHA proves you're human has it ever?

ansgar77

I'm honestly not sure if that's satire or not. Like I feel this wouldn't work, right? Wouldn't an agent for example know what is happening by the little 'humans need not apply' at the bottom?

woeirua

I’m surprised Claude worked on this… in the not too distant past my attempts to build human-CAPTCHAs triggered safety refusals. What model did you use?

goyozi

Fun idea, I love it!

swiftcoder

Aren't LLMs notoriously bad at math? Although I guess they may just spin up Python to do math these days.

robinduckett

This is funny. “Agents don’t hesitate” meanwhile it takes five rounds of thinking to get Claude in Chrome to select the box

supriyo-biswas

I can accept this as a joke project, but wonder why people at monday.com need it for?

triwats

Cool concept, but lots of processing to get to that point still. Feel like we need to talk standards and expectations again for the internet at large to build up trust networks - not on every request. Efficiency seems so far away from engineering standards now. Odd how we got here. GATCHA would be a better name but I digress

tromp

This is like Proof-of-Work, but for an extremely small amount of work, that would already overwhelm human effort, like computing a single SHA256.

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