Prove you wrote it.

AI detectors falsely flag real writers every day — contracts cancelled, accounts banned. AuthProof records your writing session as tamper-evident proof of human authorship. Share one link. End the argument.

Get the Chrome Extension Enterprise demo

How it works

1 · Record

Hit "Start Recording" and write normally in Google Docs, Notion, WordPress — anywhere.

2 · Hash-chained

Every keystroke's timing is sealed into a SHA-256 hash chain. Tampering breaks the chain.

3 · Share proof

Stop → get a public verify link. Clients see your timeline, WPM, and a verified badge.

Privacy-first by design

Only timing metadata is recorded — never your text, never key content, never passwords.
Paste events log a character count, not the pasted text.
You control every session: nothing uploads until you hit "Stop & Generate Proof".

Install (free)

1. Download the extension ZIP below and unzip it.
2. Open chrome://extensions, enable Developer mode.
3. Click Load unpacked and select the unzipped folder.
4. Pin AuthProof, hit Start Recording, and write.

⬇ Download v1.0.0 (.zip)

Chrome Web Store listing coming soon — the unpacked build works today.

Pricing

Free

10 proof docs / month
Public verify links
Ad-supported

💎 Pro

$9/mo

Unlimited documents
No ads
PDF certificates
Priority verification

$90/yr (2 months free)

Join waitlist

🏢 Enterprise

Custom

Team dashboards
LMS / CMS integrations
API access
SSO & audit logs

Talk to us

Get notified at launch: