SMS: Self-Supervised Model Seeding for Verification of Machine Unlearning

Machine unlearning (the process of removing a user's data from a trained AI model) needs verification to confirm that genuine user data was actually deleted, but current methods using backdoors (hidden triggers added to test if data is gone) can't properly verify removal of real user samples. This paper proposes SMS, or Self-Supervised Model Seeding, which embeds user-specific identifiers into the model's internal representation to directly link users' actual data with the model, enabling better verification that genuine samples were truly unlearned.