Card in the box: first scan registers the 2-year warranty. Every scan after that shows the customer's account, manuals, and accessory catalog — registration can't be replayed on a knock-off.
Scan #1 opens the warranty registration form. Subsequent scans (limit = 1 on registration) bounce to the user account, history, and accessory shop. Fake units can't claim a second warranty against the same code.
Free tier includes 1 permanent QR and the recovery key — upgrade the slot with the exact modules this case uses whenever you need them.