DocProof

Prove your document existed before you shared it

7 followers

Prove your document existed before you shared it

7 followers

DocProof timestamps any file in 30 seconds. Upload a file, get a SHA-256 fingerprint computed in memory, a UTC timestamp, a shareable verification link, and a PDF certificate. Your file is never stored. Perfect for founders, freelancers, and developers who need to prove ownership or document integrity before sharing. $9 one-time per proof, no account required. Pro plan at $12/month includes 5 proofs.

This is the 2nd launch from DocProof. View more

DocProof

Launched this week

Prove your document existed before you shared it

Prove a document existed at a specific moment. SHA-256 fingerprint + UTC timestamp + PDF certificate. No account, no file storage. $9 one-time.

Free Options

Launch tags:SaaS•Privacy•Developer Tools

Launch Team

Maker

📌

Hey Product Hunt! I built DocProof after a frustrating experience where I had no way to prove a pitch deck existed before a meeting. The idea is simple: upload any file, get a SHA-256 fingerprint computed in memory, a UTC timestamp, and a PDF certificate. Your file is never stored. The proof is permanent and publicly verifiable by anyone, no account needed. $9 one-time per proof. Pro plan at $12/month includes 5 proofs. REST API available for developers who want to integrate it. Would love to hear your feedback and use cases. What documents do you wish you had timestamped in the past?

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8d ago

Previous DocProof Launches

DocProofCryptographic timestamps for documents — no file storage

Launched on July 7th, 2026