{"@context":"https://w3id.org/openbadges/v2","type":"Assertion","id":"https://oakaiapp.com/api/badges/OAK-509B9E0D.json","recipient":{"type":"email","hashed":true,"salt":"oak-ai-campus-v1","identity":"sha256$44b6ee1aa437d9549c11721e44c80142246e5ea6fda7da8a4ef65a5d8d8c7934"},"issuedOn":"2026-04-21T19:45:39.183854+00:00","verification":{"type":"HostedBadge"},"badge":{"@context":"https://w3id.org/openbadges/v2","type":"BadgeClass","id":"https://oakaiapp.com/api/badges/class/OAK-509B9E0D","name":"Oak AI Campus — Practitioner Mastery","description":"Awarded for completing the Oak AI Campus mastery track on “Master derivatives for JEE Advanced” at the Practitioner level.","image":"https://oakaiapp.com/oak-icon-512.png","criteria":{"narrative":"Recipient generated all 5 step modules and passed adaptive exams scaled to the chosen difficulty tier (Basic/Intermediate/Expert)."},"issuer":"https://oakaiapp.com/api/badges/issuer"},"narrative":"Abhishek Singh completed the Oak AI Campus mastery track on “Master derivatives for JEE Advanced”."}