A 5-minute, method-first activity: students verify three references from their own draft bibliography before submitting - resolving DOIs and searching exact titles - then classify each as found-and-matches, found-but-differs, or not-found, and correct entries from the real record. Motivated by the rise of fabricated ("hallucinated") citations that look perfectly formatted yet point at nothing. Teaching point: "not found" does not automatically mean "fabricated".