Today we will be building the below with Cerner's FHIR sandbox.
Idea is to have a JSON web signature with payload and a signature (issuer signs with private key and you can check against the public key)
SMART Health Card Verifier
[above is from commonwell's smartcard reader]
SMART Cards are not just limited to COVID
Any test (VZV IgG, etc)
Any vaccine (MMR, Tdap, etc)
Basically, need to create a FHIR app