Re: [113attendees] covid apps, was If one tests positive in Vienna

[John Levine <[e-mail]>]

It appears that David Brown <[e-mail]> said:
>My state, for example (Colorado), has an app that will display a SMART
>Health Card vaccine record. It will also show an on-device version of the
>paper card. I wonder if either of these will be acceptable. Are the ones
>with QR codes universal?

tl;dr Nope.

Here's a map of SMART card issuers:

https://vci.org/ (scroll down a couple of screens)

It's widely used in North America but in Europe only the UK and Macedonia.

It is a QR code of a signed JSON blob, we should be proud
that they are using many of our standards: https://spec.smarthealth.cards/

There are apps to display SMART cards on your phone, but since it's a
QR code, a copy saved as a file or a paper printout is just as good.
There is also a verifier app which will scan the QR code, check the
signature and display the contents.

The EU has a similar QR system but with the possible exception of
the UK, it's not the same.  I installed the French tousanticovide
app, pointed it at my SMART code, and it said non.  Wrong format.

Bonus tip: you can have as many US paper vax cards as you want.
Go back to the place you got vaccinated, ask politely, and they
should be able to look up the info and write out a new one
for you.

R's,
John