Intellectual Property India Publishes Patent Application for Cryptographically Secured Time-Bound Attendance Verification System Using Rotating Qr Tokens With Real-Time Validation

MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202621025337 A) filed by Sanjay Ganesh Kanade on March 03, 2026, for Cryptographically Secured Time-Bound Attendance Verification System Using Rotating Qr Tokens With Real-Time Validation.

Inventor includes Sanjay Ganesh Kanade.

The application for the patent was published on June 12, 2026, under issue no. 24/2026.

Abstract: A cryptographically secured time-bound attendance verification system employs rotating HMAC-SHA256 signed QR tokens to enable simultaneous attendance marking by an entire class using a single shared token. The system comprises: a token generation engine with configurable validity window rotating at one second less than the windo...