Instantly confirm an RCCS / completion certificate is authentic and unaltered.
🔒 Every check runs in your browser using the certificate's own signature. Nothing is uploaded — ever.
The code is the text inside the certificate QR. Prefer scanning? Use the QR-image or camera tab.
Decoding and verification happen locally on your device.
Point your camera at the certificate QR code.

Every certificate carries a tamper-proof digital seal. This page checks that seal in four quick steps — right here in your browser:
The QR on the certificate holds all its details — name, course, dates.
The details are boiled down to a unique fingerprint. It must match the one stored inside.
Rocheston's digital seal is verified with math. Only a real certificate passes.
Finally we confirm the certificate hasn't expired.
Creates the certificate and seals it with a secret signing key.
CAN CREATE SEALSHolds only the matching checking key — it can verify a seal, never create one.
CAN ONLY CHECK🔒 All four steps run offline on your device. Nothing is uploaded — ever.