Blog
Notes from FIRL on AI writing transparency, the research behind Colophon, and how the tool itself works.
July 31, 2026
What a TWFF file contains
A TWFF file is a chronological event log, not a score. Here's exactly what's in one.
July 30, 2026
A question for educators
When a student submits work you suspect wasn't produced by them, what would actually be useful to you: a probability score, or a timeline?
July 29, 2026
The product-process ratio
How keystroke-logging research measures the difference between composing a document and transcribing one, and why that measure matters for AI writing transparency.
July 28, 2026
Why the detection approach fails
Over half of non-native English writing samples are misclassified as AI-generated by GPT-based detectors. The bias is structural, not incidental.