New York State has made a try at a digital vaccination certificate.

That article describes some flaws, which maybe will be fixed. But I wonder, how do restaurants, concerts and so on check your status? Does it require you to have a smartphone?

Also, does the system record where your certificate is checked?

Can people use paper certificates instead? I have one of those.

Please call Governor Cuomo's office and ask these questions. Show the state that these questions matter.