My team has been working on a plugin to steganographically encode jpegs with username data in order to cut down on piracy. Basically it hides the login info of the logged-in patron who downloads it, within the pixels of the image, in a fashion that stands up to image cropping and manipulation. So you can plug it in a “reader” utility and find out who is reposting your work. We will have an oauth version running in the next few days, and I am putting this out in the hopes I can get a few people to help me test it out. Please PM me if you’d like to be notified when it’s ready to test.