Other than just manually generating a UUID and storing it then doing searches for it, is there any sort of formalized service/application/library for "Air Tag b

Other than just manually generating a UUID and storing it then doing searches for it, is there any sort of formalized service/application/library for "Air Tag but for your data"? Generate a unique string, store it along with my data, notify me if it shows up anywhere. I wonder if it's possible to generate a canary of that sort that can be detected in AI models.