Authenticate Any Document with Post-Quantum Cryptography
The first consumer-accessible quantum-safe document authentication. Upload any PDF, PNG, or JPG and receive cryptographic proof of authenticity that will remain secure beyond 2055—even against future quantum computers.
Authenticate a Document → Verify a DocumentThree simple steps to quantum-safe document authentication
Upload any PDF, PNG, JPG, or JPEG file up to 50MB. Your original file is never modified—we hash the exact bytes.
We generate SHA3-256 hash of your file, then authenticate with both Ed25519 (classical) and ML-DSA (quantum-safe) algorithms.
Download your Certificate of Authenticity with unique Certificate ID. Use this ID to verify your document anytime.
Authenticate any of these document formats
Contracts, agreements, legal documents
Artwork, certificates, screenshots
Photos, scanned documents, images
Word documents, reports
Who benefits from quantum-safe document authentication
Authenticate contracts, agreements, and legal documents with cryptographic proof that survives quantum computing threats.
Prove authenticity and timestamp of original artwork. Perfect for artists, photographers, and digital creators.
Sign board resolutions, financial statements, and official corporate documents with audit-ready verification.
Issue verifiable certificates, diplomas, and credentials that recipients can authenticate independently.
Authenticate medical documents and records with HIPAA-conscious cryptographic protection.
Sign invoices, receipts, and financial records with tamper-evident cryptographic timestamps.
NIST-approved cryptography for the post-quantum era
Hybrid cryptography ensures your documents are protected today with Ed25519 and tomorrow with ML-DSA. When quantum computers break classical encryption, your QAF-signed documents remain secure.
One price for quantum-safe document authentication
Per document authenticated
Protect your documents with quantum-safe cryptography