Verify in person
Check a credential
No wallet is needed. The signature is checked in this browser first; the blockchain is asked afterwards when there is a network.
Step one
Scan a credential code
Point the camera at the code on the holder's phone or certificate, or choose a picture of it.
The camera and pictures are read in this browser. Nothing is uploaded.
Step two, optional
Ask the holder to prove it is theirs
The holder scans this with their phone and signs it with their wallet, for you only. Then scan their answer. Each challenge works once; get a new one for the next person.