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The CAPTCHA protocol
AI视角解读CAPTCHA协议中红绿黄光谱信号的决策逻辑，科技感十足。
Nature, Published online: 20 May 2026; doi:10.1038/d41586-026-01085-8 Difficult choices.
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Show HN: Requestguard – Bot-Protected Short Links
创建带验证码门控的短链接，自动屏蔽机器人与爬虫，目标URL完全隐藏，支持过期和密码保护。
Article URL: https://go.requestguard.com/ Comments URL: https://news.ycombinator.com/item?id=48180740 Points: 1 # Comments: 0