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Use "watermarking" in a sentence
"These days, digital watermarking is now being tasked to make money on unauthorized file distribution."
"Blackstone is contacting the rightsholders for all its titles notifying them that they'll be releasing their catalog in DRM-free MP3 (with some kind of watermarking -- I'm skeptical that this will work to stop pirates, since all imperceptible watermarks can be trivially removed through simple means like diffing two files) format unless they hear otherwise by a certain date."
"One is digital "watermarking," in which a bit of computer code is embedded in a file to identify it."