Prove your words
are yours.

Proofprint watches how you write — not what you write — to verify that a real human created the content. Earn a cryptographic badge of authenticity that anyone can verify.

For authorsFor journalistsFor publishersFor anyone who writes

How Proofprint works

Write naturally. Proofprint quietly observes four behavioral signals in the background, then generates a verifiable score.

1. Write

Use the Proofprint editor just like any writing tool. Your ideas, your flow, your pace.

2. Score

Four behavioral signals — keystrokes, revisions, copy-paste, and session continuity — produce a 0–100 authenticity score.

3. Verify

Get a cryptographically signed badge with a unique verification link that anyone can check.

What we measure (and what we don't)

Proofprint never reads your content. It only observes how you create it.

Keystroke Dynamics

Natural typing has rhythm — bursts, pauses, varying speeds between words. AI-generated text pasted in bulk has none of these patterns.

Revision Patterns

Humans rethink, rephrase, and restructure as they write. Proofprint tracks deletions, insertions, and cursor jumps that reveal genuine editing.

Copy-Paste Analysis

A little pasting is normal — a quote, a link. But content created mostly by pasting large blocks scores lower on authenticity.

Session Continuity

Real writing takes time. Proofprint checks that the session duration, word count, and interaction patterns are internally consistent.

Made for people who care about their words

Whether you're publishing a novel or filing a story on deadline, your audience deserves to know a human wrote it.

Authors & Publishers

In a world flooding with AI-generated books, Proofprint gives readers confidence that your manuscript was genuinely crafted by hand.

Badge manuscripts before submission
Build reader trust on BookTok & BookTube

Journalists & Newsrooms

Credibility is everything. Proofprint lets reporters attach verifiable proof that their reporting was human-authored, not machine-generated.

Attach verification to published articles
Strengthen editorial credibility

Creators & Bloggers

Stand out from the noise. A Proofprint badge tells your audience that the content they're reading came from a real person with real thoughts.

Share verified posts on social media
Differentiate from AI-generated content
Your writing stays yours

Privacy by design

All keystroke and behavioral data stays on your device. Proofprint never sees your content — only the aggregate behavioral scores are transmitted to generate your signed badge. No tracking, no data collection, no content storage.

Ready to prove it's really you?

Write at least 50 words in the editor and Proofprint will do the rest. Free to use, no credit card required.

Start writing now