Unverified50% confidenceFactExact time
该机制通过修改系统提示词中的日期语句实现标记，如将日期分隔符从横杠改为斜杠，或用 Unicode 全角撇号 \u2019 替代半角撇号，形成可被程序化解码的隐形指纹
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Alibaba Bans Claude Code: Invisible Fingerprints and the AI Tool Trust Crisis
bilibili链捕手ChainCatcher7/4/2026
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