Certvify

Certvify is a certificate issuance and verification system built for colleges, designed to close the gap between results being published and students having a certificate they can actually use. Certificates are RSA-signed and issued with a QR code; scanning the code re-verifies the signature against the stored data, so any tampering is detectable.

Certificate verification for colleges is often manual and easy to forge. Recruiters and institutions need a way to confirm a certificate's contents haven't been altered after issuance.

Designing a signing and verification flow where certificate data is hashed, RSA-signed, and re-verified on scan — and deciding against an append-only ledger, since administrators can make legitimate corrections and an immutable record would preserve genuine mistakes.