✦ Early Access Open
For freelance writers

Prove you wrote it.
One receipt. One click.

Stop losing invoices to false AI detection flags. Attach a cryptographic proof of authorship to every deliverable — pulled straight from Google's own servers.

Authorship Receipt writerreceipt.com · #WR-00291
✓ Verified
Document Q4 Blog Article Draft
Active drafting time 2h 14m
Keystrokes logged 8,342
Paste events 2 (short phrases)
Data source ✓ Google Docs API
0x4a2f...b91c · OpenTimestamps
Early access · $9 per receipt

No subscription. No commitment. One receipt saves one invoice.

🎉 You're on the list! We'll email you when Writer Receipt launches.
Why Writer Receipt works
📄
Works with Google Docs
Connects directly to your document while you write — nothing extra to do. Just write normally.
📎
Sends as a PDF with your invoice
One attachment. Looks professional. Clients understand it instantly — no login, no dashboard.
🔐
Tamper-proof verification link
Pulled from Google's own servers — not self reported. Cryptographically timestamped. Nobody can dispute it.
💸
Stops false AI flags killing your income
One receipt protects invoices worth $500, $700, $1,200 or more. The math is obvious.
"Client flagged my article as 84% AI. I typed every word. I had nothing to prove it — until now."
— The problem 10,000 freelance writers face every month