Certidox
Printed + Digital • Local Verification • Real-Time Status

How Certidox Works

Certidox enables instant verification of printed and digital documents using a secure QR code. Verification confirms origin, integrity, and current status (active, suspended, revoked) — without relying on any trusted third party.

Verify in ~1 second For fast decisions in real workflows.
Local processing Document data is processed on your devices/servers.
Revocation + alerts Instant status updates and optional notifications.
Open-source and auditable Core components can be reviewed by security teams.

The Core Workflow

  1. Certify: embed a secure Certidox QR code into a document (printed or digital).
  2. Distribute: share the document normally (email, PDF, print, portals, press distribution).
  3. Verify: scan the QR code with the Certidox verifier app or verify automatically using the Certidox library.
  4. Decide: instantly confirm authenticity and current status (active/suspended/revoked).
  5. Revoke: if needed, suspend/revoke a document and optionally notify previous verifiers.

1) Certify a Document

A Certidox QR code is embedded into each certified document. This QR code is designed for verification, not just for opening a URL. It can be applied to a wide range of documents: diplomas, transcripts, invoices, purchase orders, wire instructions, press releases, and emails.

Related: QR code authentication

Printed + digital: the same secure QR-based verification works on paper and digital files.

This is essential for real-world sharing, scanning, forwarding, and archiving.

2) Verify in About One Second

Verification can be performed in two ways:

  • Mobile verification: scan the QR code using the free Certidox verifier app.
  • Automated verification: run verification on your infrastructure using the Certidox library.

What the verifier returns

  • Authenticity: is this document genuine?
  • Integrity: has it been altered since certification?
  • Status: is it active, suspended, or revoked?

3) Local Processing and Confidentiality

Certidox is designed so that document verification runs locally on your device or servers. Document content is not processed on Certidox servers. Certidox also does not store decryption keys on its servers.

Learn more: Security & privacy

4) Revocation and Real-Time Status

If a document becomes invalid (correction, withdrawal, error, fraud, or policy decision), it can be suspended or revoked.

Optionally, Certidox can notify people who previously verified the document, helping prevent outdated versions from circulating.

Where It’s Used

Request a Demo

If you want to see how Certidox fits your workflow—printed and digital documents, fast verification, confidentiality, and revocation—let’s run a short demo.