{"@context":"https://w3id.org/openbadges/v2","type":"Assertion","id":"https://oakaiapp.com/api/badges/OAK-C26B4D21.json","recipient":{"type":"email","hashed":true,"salt":"oak-ai-campus-v1","identity":"sha256$bf7dbd2da1d610f2d2fafb0684a1af3424994d21e9a00a494bf895f1e29b7746"},"issuedOn":"2026-04-29T08:09:18.117498+00:00","verification":{"type":"HostedBadge"},"badge":{"@context":"https://w3id.org/openbadges/v2","type":"BadgeClass","id":"https://oakaiapp.com/api/badges/class/OAK-C26B4D21","name":"Oak AI Campus — Practitioner Mastery","description":"Awarded for completing the Oak AI Campus mastery track on “Calculus I — limits, derivatives, integrals” 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 “Calculus I — limits, derivatives, integrals”."}