Certidox
Anti-Spoofing • Printed + Digital

QR Code Authentication for Documents

Certidox authenticates documents using a secure QR code embedded in each document—so reviewers can confirm origin, integrity, and current status (active, suspended, or revoked) in about a second. Designed for document confidentiality, anti-spoofing, and real-world workflows—on paper and in digital files.

Authenticate in ~1 second Fast decisions for high-stakes documents.
Resists spoofing Built for environments where sites and QR links get mimicked.
Confidential by design No personal data stored in plain text.
Revocation + alerts Immediate status updates and optional notifications.

Why “Standard QR Codes” Fail

Most QR codes are just links. Links can be copied, replaced, redirected, or embedded into counterfeit documents. Attackers also clone verification pages and domains to look legitimate.

QR code authentication must do more than open a webpage: it must verify authenticity and status in a way that helps detect spoofing, duplication, and tampering—especially with AI-generated fakes.

Rule of thumb: if verification relies on a website alone, the website can be imitated.

Certidox is designed so the verification outcome is tied to the document and its current status.

How Certidox QR Code Authentication Works

1) Embed a secure QR code in the document

Each certified document (printed or digital) includes a QR code designed for authentication and status checking—rather than a simple “open this URL” experience.

2) Verify using the official verifier

  • Mobile verification: scan with the official Certidox verifier app (App Store and Google Play).
  • Automated verification: integrate verification into your systems using the Certidox library.

3) Confirm current status: active, suspended, revoked

Authentication includes the document’s current status. If a document is suspended or revoked, the result changes immediately. Optional real-time alerts can notify anyone who previously verified the document.

Built for Printed and Digital Documents

Many solutions work only for PDFs behind portals. Certidox is designed to keep authentication practical when documents are printed, scanned, forwarded, or shared—without turning verification into “visit a website and hope it’s real.”

Related pages: Document verification · Credential verification (FERPA)

Confidentiality and Compliance

Certidox is designed to be FERPA, GDPR, and PIPEDA aligned and to preserve the confidentiality of certified documents. No personal data is stored in plain text, and decryption keys are not kept on Certidox servers.

Implementation details: Security & privacy.

Common QR Authentication Use Cases

  • Diplomas, transcripts, badges, and alternative credentials
  • Banking authorizations and proxies (with immediate revocation)
  • Wire instructions and payment change requests
  • Invoices, purchase orders, and supplier documents
  • Press releases and regulated communications
  • Email attachments in sensitive workflows

FAQ

What is QR code authentication for documents?

It’s the ability to confirm a document’s origin, integrity, and current status by scanning a secure QR code embedded in the document, helping detect tampering, spoofing, or outdated versions.

Does this work on paper and digital files?

Yes. Certidox is designed for both printed documents and digital files, using the same QR-based authentication flow.

Does Certidox rely on blockchain?

No. Certidox does not use blockchain.

Can a document be revoked after it is issued?

Yes. A document can be suspended or revoked at any time with immediate status updates. Optional alerts can notify prior verifiers.

Request a Demo

If you need QR code authentication that resists spoofing and works on printed and digital documents while preserving confidentiality, let’s run a short demo on your use case.