Guides
How this actually works
AI watermarking explained without the marketing, including the parts where the answer is that something cannot be done.
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How to check your essay before you submit it
A practical checklist for students: what to look for in your document, how to find invisible characters, and which of the scary things you read are true.
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What SynthID actually is (and why no tool can remove it from text)
SynthID watermarks Gemini text and images, but not with hidden characters. How it actually works, and why no third party can detect or remove it.
Do AI detectors actually work?
AI detectors report confident percentages. The research says those numbers are unreliable, especially for non-native speakers. Here is why.
Every invisible Unicode character, and what it is for
A reference for every invisible Unicode character used to watermark or hide data in text: zero-width, tag characters, variation selectors, bidi controls.