It made me think of the tracking dots as well, but this is more like every time you hit print, it submits a copy of your document to the cloud for approval. With time, they could use AI to silently update the document to alter the offending portions and continue printing. They would then notify the authorities of the breach and decision could be made if further action is necessary

"The government has been notified that you are attempting to 3D print a copyrighted Door Wedge™ without a license. Local law enforcement has been notified, please prepare to be arrested."

or worse...

"You are trying to print a design that is 87% similar to Egg Cup™. Acquire a limited run license for $3000 for ten runs which expires in six months? Y/N"