Tramaproof / Passport / QR and GS1 Digital Link

One printed code, and you never print it again.

The code on the label carries an address, not a version. When you publish a new version of the passport, the same code keeps working, because the address always leads to the current version.

The standardGS1 Digital Link, the addressing scheme retailers and marketplaces already read
ConformanceTramaproof's address service passes all 25 cases of the official GS1 conformance suite
Before the print runThe address is reserved before the passport is ready
What it carriesThe product code, and nothing that identifies a person
Public address of a passport: QR code and permanent URL, marked live
Reservation

The address exists before the data

You can send artwork to the printer while the supply chain is still answering. Anyone scanning the code before publication finds a page saying the passport is in preparation.

Versions

Same code, new version

Publishing version 3 does not invalidate the code that pointed at version 2. A reader always lands on the current version, and the older ones stay consultable.

Standard

It is a standard, not our invention

If you ever change passport provider, the printed code stays valid, because the addressing scheme does not belong to us.