Little verified background is available for this short clip beyond its title, so its online life matters more than a single source. On soundboards it circulates as a compact reaction sound, where the name and the word proof give editors a ready-made cue for evidence, receipts and callouts. That simple structure is why it keeps appearing in short-form edits: it is easy to recognise, easy to place, and immediately understood without context. As with many brief board clips, its staying power comes from reuse rather than from one famous moment.