Blog

Technical writing about how watermarking works and how to reason about it in code.

Deep dive

How Claude's Watermark Works: A Technical Deep Dive.
Deep dive

SynthID and Tournament Sampling: how production text watermarks work.
Tutorial

Build a Claude Watermark Detector in Python (educational).
Tutorial

Build a C2PA Content Credentials inspector in code.
Tutorial

Detect and remove zero-width characters in Python and JS.
Deep dive

Attacks on text watermarks and what robustness really means.