Well, if you can solve this, you can be a millionaire!
I am glad that idea prompted you to look in to the Image properties.
At least that can retain some originality. Because I know that when you post a phone it even has GPS location (which is super creepy but useful to detect certain things and copyright content)
You had me at millionaire. ;-)
Gonna take a deep look into that :D
haha, don't forget me when you got it figured out. :p
Haha, I won't :D
Already looking into EXIF metadata...
Keep you posted :)