this post was submitted on 29 Jul 2025
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ALTCHA provides privacy-first spam protection with a globally compliant and accessible alternative to Captchas (altcha.org)
submitted 4 days ago by cm0002@lemmy.world to c/privacy@programming.dev
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[–] noodlejetski@piefed.social 3 points 3 days ago (1 children)

The system defaults to a Proof-of-Work (PoW) verification method, eliminating visual puzzles or disruptive challenges.

isn't that what Anubis does? https://anubis.techaro.lol/

[–] somerandomperson@lemmy.dbzer0.com 1 points 2 days ago (1 children)

Yeah.

And unlike anubis, it seems like it's closed-source.

[–] noodlejetski@piefed.social 1 points 2 days ago (1 children)

they claim the opposite

Unlike other solutions, ALTCHA is free, open-source and self-hosted, does not use cookies nor fingerprinting, does not track users, and is compliant with data-privacy regulations and accessible.

https://github.com/altcha-org/altcha

[–] somerandomperson@lemmy.dbzer0.com 1 points 2 days ago

Well, doesn't change the fact that it's basically anubis.