{"plays":[{"participant_id":"66f9b792190a6acb2c97fe97a85870d4a8645608a029ed063610906e4cd6e5de8b3bd2a885d3af9bfbf429675e06c320e9ce83ab607b360fe30fbf08c875e3b0","track_slug":"ebpf-tutorial","status":"started","challenges_completed":0,"challenges_total":9,"start_time":"2026-06-14T13:42:29Z","end_time":"1970-01-01T00:00:00Z"},{"participant_id":"572a26b9d4cd46e9acbfa6d5424ad5b793a44e9b969d00bb51ee2cb5bfc41f2f1ab71cb22f97e785b9eb3536bdc781321921595bfc225bce77c2db3beff98176","track_slug":"cilium-traffic-optimization","status":"started","campaign_id":"764fdcc1-46b4-4afa-8317-a32773fd7e5a","challenges_completed":3,"challenges_total":7,"start_time":"2026-06-14T13:29:59Z","end_time":"1970-01-01T00:00:00Z"},{"participant_id":"2afbbdab98808323dbaed34eab97499352ad2ca5998bfb9cfdf3adb9f0ee5246a46371c3bcd399d634cfe49d8bead9a2b024e8302968ae1ecd33f250a4f019a2","track_slug":"cilium-lb-ipam-l2-announcements","status":"started","challenges_completed":6,"challenges_total":7,"start_time":"2026-06-14T13:22:42Z","end_time":"1970-01-01T00:00:00Z"},{"participant_id":"fcdaa5a3e1715cc08163c0e164c5914d96a21461b5327abb2adebf6caaa655e73b40ecda7c6bd51340561fc3591a79965c5fe85829089c7dd11777298e9848a8","track_slug":"foundations-networking","status":"started","challenges_completed":3,"challenges_total":12,"start_time":"2026-06-14T12:34:15Z","end_time":"1970-01-01T00:00:00Z"}]}