Container QRs serve customs docs in the language of the country they are scanned in. Diverted to a new terminal mid-voyage? Update once — the sticker stays.
Mid-voyage rerouting updates the customs documents at the QR layer — the container itself doesn't need a new label. Country routing serves the Dutch pack in Rotterdam and the Greek one in Piraeus. Each scan webhooks the time and the country it came from, so a battery-dead GPS tracker still leaves a country-level trail behind it.
Free tier includes 1 standard QR code. Upgrade to the paid Eternal tier for blockchain permanence and the recovery key.