The line comes from Domingão do Faustão, the long running Sunday variety show hosted by Fausto Silva on Globo from 1989 to 2021. Faustão became known for hyping games, contests and video segments with huge enthusiasm, and short clips of his announcements later spread on YouTube, WhatsApp and Brazilian meme pages. Uma prova que fez muito sucesso captures that presenting style in one sentence, referring to a challenge or segment as a proven success. It stays popular because Brazilians instantly recognise the voice and reuse it for nostalgic, ironic introductions.