{
  "namespace": "estimate",
  "episode_id": "20260917_133640",
  "stream": "hand_2d_vision21",
  "method": "Apple Vision VNDetectHumanHandPoseRequest",
  "not_device_output": true,
  "not_openxr": true,
  "joints_per_hand": 21,
  "per_joint_confidence": null,
  "source_file": "e2-layers/e2-findings.jsonl",
  "hamer_mano": null,
  "hamer_note": "HaMeR/WiLoR reserved as optional estimate.hand_mano_*; requires GPU and must stay out of device namespace (EgoDex-style caution without stable extrinsics)."
}