Human Authorship Certification for Content Agencies
Protect your agency from client payment disputes and AI-copyright claims with a timestamped record of how each deliverable was actually written and reviewed.
A record, not a score
A disputed AI-detector percentage can be argued with. A timestamped edit history can be checked against the document itself.
Built for disputes
When a client withholds payment over a suspected AI flag, you get a factual account of the writing and review process, not a guess.
Works with your stack
Starts with Google Docs today. Tell us what you use and we'll follow the real demand.
From the team: Colophon started as an open record of how AI-assisted writing actually happens in a classroom, not a verdict. Read where it stands today →