Cate is a verification platform for human-written content

Confidence in human authorship, from first draft to final submission.

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Cate is an application that captures human writing patterns

Cate builds a unique profile from a user's keystrokes. We record the timing, pauses, and revision patterns that make up how someone writes. Each draft is checked against that profile in real time, creating a proof of process. When a user has a final draft, they can submit it for verification. Cate issues a portable badge that stays with the document and shows the writing is theirs.

Built for U.S. higher ed institutions — educators, students, and academic researchers. Useful for all writers.

Built for U.S. higher ed institutions — educators, students, and academic researchers. Useful for all writers.

The challenge

Educators are caught between broken detection tools and an impossible burden of proof.

I had to spend extra unpaid hours verifying originality and fairness, with students' grades and academic integrity at stake."

— Alan, High School Educator

The AI detectors vary so much that it's just not very reliable — you can't say, I'm 85% confident you cheated. The student can than say that's a 15% chance I didn't, and you can't give me a zero.”

— Kristen, High School Educator

You get the burden of proof — they ask you, how can you prove they did this? It feels almost a little dangerous to your job to keep reporting, because you're not sure if they're going to make a problem for you."

— Robyn, College Educator

3-5+ hours a week

Spent just checking for AI use — often unpaid, on top of grading and lesson planning.

70% of educators

In our go to market research suspected at least half of their stdents' submissions each semester are AI generated.

What you get with Cate

Proof of process

A clear record that a person did the writing, captured as it's written.

Portable Verification

A Cate badge that verifies the writing process, for anyone to share.

Transparency & Authenticity Preserved

No second-guessing the integrity of students' work; educators get a clear signal of effort.

MAIN FEATURES

How it works

Create a profile

Write for a few minutes, and Cate learns how you write. Rhythm, corrections, keystrokes — your fingerprint. From there, every piece you sign with Cate carries your authorship built in.

Manage documents

One editor, one archive, one click to certify. Your drafts are autosaved, and when you are ready to verify your document instantly. Share your URL with teachers, editors, or publicly to prove your authorship.

Share your team link

Get a QR code with the Team plan and share it with your students — no payment needed on their end, no individual sign-up friction. It works like a class: everyone writes and certifies under your plan.

Coming to Cate soon:

  • An extension that brings Cate to other word processors

  • Integrations with popular higher-ed platforms

  • More in-app features, including classroom setup.

  • More text editor features.

OUR PHILOSOPHY

Creating AI Literacy

AI literacy isn't about avoiding the tools. It's about learning to use them responsibly, with your own thoughts in charge.

Writing is a process where learning happens. Revisions, time spent synthesizing, and editing are how ideas are built. AI can be a tool to enhance not substitute that process when used well and transparently. Cate is not anti-AI. We are proof of process so writing does what it's meant to: develop critical thinking skills in students.