Proto · QR
Every square is a number.
The wallet holds the record. The intended handoff gives the operator a verdict, never a biomarker. This is the interface in concept: the same code, read four times, one pass per season.
Visual demo. This QR opens this page. Single-use sessions and cryptographic receipts are not active here.
Your code
A wallet handoff, shown in concept. This demo opens the QR page.
The intended handoff
The pixels carry a pointer, not a person. This page shows the design. The wallet session would happen after the scan.
The code carries a one-time link
A production session would carry a short URL and a random token. No name, lab value, or wearable stream belongs in the squares.
The wallet answers on the phone
The intended flow evaluates the record on its owner's device. Token expiry and redemption need a separate session service.
The operator gets a category
A menu sorts. A protocol prints. A stack ranks. The operator-facing output is a category, not the underlying biomarker record.