Verifying the result belongs to the right person

Verifying that a particular result belongs to a particular person from a home test is a challenge. Creating a place in the test result part of the ontology for an associated file can be helpful. E.g. the user needs to take a picture of their home test result and the photo would have not only the paper strip (i.e., the result) in the photo, but also the QR code on the strip device itself, which would be unique to that one test strip.