Arquivo X is the Brazilian Portuguese title for The X Files, the American science fiction series that premiered in 1993 with an instantly recognisable theme by Mark Snow. In Brazil the theme alone became shorthand for mystery and conspiracy theories. This version pairs that theme with Nego do Bam, circulating online as a short ringtone style remix and meme audio. Its nine second length makes it easy to share in chats and edits, where it is still used whenever a claim sounds strange, suspicious or impossible to explain.