Backend is running.
This local server simulates the cryptographic verification layer for future NTAG424 DNA / SDM / SUN REAL Seal physical markers.
This is not production. This is a no-cost local backend proof before buying cryptographic tags.
1. Register / Load Test Marker
2. Generate Simulated Scan URL - Counter 1
3. Generate Simulated Scan URL - Counter 2
4. View Internal Scan Logs — /real-seal/logs (dev routes only)
5. View Internal Marker Records — /real-seal/records (admin key required)
6. Reset Test Keys and Logs — /real-seal/reset (dev routes only)
AUTHENTIC = valid fresh scan.
REPLAY_WARNING = same scan URL used again.
INVALID_CMAC = scan data was altered or forged.
UNKNOWN_TAG = marker is not registered.