Story
Captcha proves you're human. HATCHA proves you're not
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Overview
HATCHA (Hyperfast Agent Test for Computational Heuristic Assessment) is a reverse CAPTCHA that presents challenges like large-number multiplication and string reversal, which are easy for AI but difficult for humans. It features server-side verification with HMAC-signed tokens, requires no database, and includes five built-in challenge types: math, string reversal, character counting, sorting, and binary decoding.
Summary from github.com.
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Community reactions
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Hacker News · github.com
Historical count: 5 · 5 saved in sample · Historical sample
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Based on 5 sampled comments from this thread. Analyzed 2026-06-26.
- Praise: The concept of HATCHA as a potential tool for mitigating bot traffic could lead to more secure online environments, highlighting the need for innovative solutions in AI-driven interactions.
- Concern: Many commenters view HATCHA as impractical, suggesting that it may not effectively differentiate between human and bot interactions in real-world applications.
- Concern: Concerns about the reliability of AI models like Claude, which can hallucinate information, raise doubts about their effectiveness in passing tests designed to verify human input.