Free Authorship Certificate
Prove your work existed at a specific point in time. No account needed. Your manuscript is hashed in your browser and never uploaded.
Your file stays on your device. We compute a SHA-256 cryptographic fingerprint in your browser. Only the fingerprint (hash) is used to generate the certificate — your manuscript is never uploaded or stored.
Certificate will be sent to this email.
Drop your file here or click to browse
PDF, DOCX, TXT, FDX, or Fountain (max 50MB)
File is hashed locally — never uploaded to our servers
This is a basic hash-only certificate with no online verification. For full protection with encrypted storage, QR verification, and distribution tracking, see our paid plans.