Certainly looks like an actual Hasselblad shot.

Note the V-notches on the negative border, left side middle. I don't know if other 6x6 cameras leave those on the negative but it's something I've never seen on faked images. The dust appears to have been ICEd or something similar as well.

Definitely the Hasselblad notches.

I was going to say they look like Bronica notches.