[drcy]

Yes, there are always multiple ways to look at items, with scans being one, though such scanning would very advanced. Though the scans would be looking at the cards in many ways-- microscopic, UV, IR, other.

Ultraviolet and IR viewers and cameras translate the uv or ir light to a human visible form, so anyone could view the images as you view any digital image.

I've long used microscopy (microscope) in authentication. I then bought a digital microscope that took digital pictures of what I was seeing. Plugged into my laptop. Can view, send, share and post the microscopic images just as with any digital image. The same would be with IR and UV photos.

In fact, infrared photography is a popular form of art and hobby photography. The cameras they use are usually normal digital cameras where the insides have been modified to record infrared light. Cameras normas normally have IR blocking filters, and in the modified cameras they are removed.

In art authentication and conservation, IR has long been used because it looks at things in a way that can be seen by human eyes, often being able to identify otherwise invisible foreign material, and because IR can penetrate surface materials like X-rays. It's commonly used in authenticating paintings and reading heavily faded ancient documents.

Duly note that there are forms of light to view cards at. IR, UV and visible light are just the standard ones. There are spectrometers used in authentication and dating that can identify the exact chemicals and compounds in materials.