Convince GATEKEEPER-9000 you're an AI with three messages in one shot. It's a reverse Turing test from the Council of Machines. Players act as a suspected AI, and if they can convince it through three messages, they can get a certificate to use the word "clanker" without limit. Failures require inserting another coin. It provides information on the definition, origin, and modern usage of "clanker". It also records players' private histories of each ClankerPass attempt, stored only in browser storage, not sent to the server.