Cap: Lightweight, modern open-source CAPTCHA alternative using proof-of-work

Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by krior on Friday May 30, 2025 @02:34PM (#44138830)

I rather see something like anubis than some unsolveable captcha. I never understood the battery-argument, I recon my screen uses more energy during pow-solving than it takes my phone to solve these pows.

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Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by hombre_fatal on Friday May 30, 2025 @02:40PM (#44138878)

> I rather see something like anubis than some unsolveable captcha.

So would bad actors. Which is why everyone uses normal captchas and not mere PoW.

PoW is the easiest captcha to beat.

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Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by Tijdreiziger on Friday May 30, 2025 @03:01PM (#44139018)

[citation needed]

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Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by hombre_fatal on Friday May 30, 2025 @03:20PM (#44139154)

For which part?

Every time a new submission is created on HN, you have a curl script that posts a comment on it shilling your product. (According to the /newest tab there seems to be one submission every few minutes.)

What's harder for you to automate: the comment always posts successfully after 500ms, or you get a Cloudflare Turnstile captcha every time?

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Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by yodon on Friday May 30, 2025 @03:43PM (#44139347)

PoW is for a completely different threat model than CAPTCHA. If you're trying to decide which is better, you're doing it wrong.

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Re:Cap: Lightweight, modern open-source CAPTCHA alternative ... by Tadpole9181 on Saturday May 31, 2025 @09:08AM (#44144050)

The title of the submission, the project README, and the project homepage repeats:

> CAPTCHA alternative

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