CertifyDoc gives you blockchain-anchored proof for what you create and what you send. Certified email and a private works registry, with public verification that never exposes your content.
PROVE IT
WHITHOUT
REVEALING IT
SHA-256 • Bitcoin anchoring • Public verification • AI assistance
What
we solve
Proof first
Proof your work existed at a specific time. Upload once, get a certificate and a Verify link.
CERTIFIED EMAIL
Use your existing email accounts. Mark messages as certified and get a receipt-style certificate for each important email.
ONLINE EVIDENCE
Capture certified snapshots of pages and posts before they change or disappear.
PRIVATE BY DEFAULT
CertifyDoc only exposes hashes and minimal metadata for verification, so you can share proof without sharing the underlying work.
Start free
Creator plans from $3/month, studio and firm plans from $9 and $19/month. All plans include work registrations, certified emails, and public verification, with optional notification addresses.