What is metadata?
Wikipedia says:
Metadata is “data that provides information about other data”, but not the content of the data, such as the text of a message or the image itself.
Simply put it is information about the author, time, content, description.
When we talk about art forgery, then what is fake? Painting is real. It can even be of better quality.
It can be a “lost” artwork made by an unknown artist. Then one day we correct the metadata and will say that it is by Dürer. And its value changes colossally. But the data (art) is the same.
It applies the same way to analogue and digital art and to NTFS.
BBC One documentary series “Fake or Fortune”.
Tauno Erik 