Sony used audio fingerprinting to find 30,000+ infringing tracks in Udio's training data

Sony Music ran audio fingerprinting — a technique that identifies recordings by their unique acoustic patterns — on Udio's training data obtained through legal discovery. It found over 30,000 allegedly infringing recordings, from "Hound Dog" to "As It Was." The approach targets direct input provenance rather than output similarity, a stronger evidentiary posture in AI copyright cases.