Don't work.
Very very hard to find images because if you resize or edit in any way the hash value change. When you save for web all exif data on images are deleted.
The best way to find stolen images is
https://images.google.com. They use advanced image recognition trained with AI.
When you find stolen images the problem is to get payment. Most images are used on privat profiles.
But the problem are real. Points for trying.