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.gitattributes

@@ -32856,3 +32856,5 @@ actions/locomotion_primitives/P31/session_025/raw/sensors/robocap_mag_middle.db
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 actions/locomotion_primitives/P31/session_025/raw/sensors/robowrist_mag_right.db filter=lfs diff=lfs merge=lfs -text
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+ "schema_version": 1,
+ "session": "EgoMotionActions/20260909/P31/20260909_020231_session27",
+ "session_id": "20260909_020231_session27",
+ "primitive": "P31",
+ "batch": "20260909",
+ "participant": "mahui",
+ "participant_source": "manifest",
+ "device_ids": {
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+  "left": "452031d7af00ef6f",
+  "right": "6ee5ee4472fe2ad7"
+ },
+ "generated_at_utc": "2026-10-14T11:00:56.185855+00:00",
+ "generated_by": "scripts/sync_dataset.py",
+ "time_base": {
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+  "mocap_rate_hz": 120.0,
+  "first_solved_frame": 0,
+  "duration_s": 144.025,
+  "mocap_time": "frame_index / rate (Nokov Timestamp column is not a clock; kept as source_timestamp_ms)"
+ },
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+  "model": "offset (median of windows)",
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+  "offset_s": -1.181191,
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+  "global_lag_s": -1.18,
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+   "drift_se_ppm": 3.413549191794191,
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+   "lag_scatter_ms": 0.4236103144470176,
+   "lag_range_ms": 1.665708920950415
+  }
+ },
+ "units": {
+  "mocap": "millimetres, Nokov world, Y-up (unchanged)",
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+    0.0,
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+  "acc": "m/s^2 (8192 LSB/g)",
+  "gyro": "rad/s (65.536 LSB/dps)",
+  "mag": "raw counts, scale unconfirmed (data suggests 163.84 LSB/uT, see knowledge_base sanity doc)",
+  "quaternions": "xyzw, Nokov global"
+ },
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+  "status": "ok",
+  "date": "2026-09-08"
+ },
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+   "left_eye": {
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+    "frames": 4320,
+    "pts_gaps": 0,
+    "timing": "pts",
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+    "file": "robocap_segment1_video_left_eye.mp4",
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+    "clock": "device",
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+    "pts_gaps": 0,
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+    "file": "robowrist_452031d7af00ef6f_left/robowrist_segment1_video_left_down.mp4",
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+   "third_person": {
+    "file": "mocap/mocap-P31-S06-mahui-01p1-1.mp4",
+    "frames": 4321,
+    "fps": 30.0,
+    "clock": "nokov (frame index)",
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+ },
+ "flags": [
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+ ],
+ "sanity": {
+  "status": {
+   "structure": "FAIL",
+   "markers": "WARN",
+   "timing": "WARN"
+  },
+  "verdict": "READY_WITH_WARNINGS",
+  "issues": [
+   "FAIL S_DB_EMPTY",
+   "FAIL S_REPORT_EMPTY",
+   "WARN M_SPIKES",
+   "WARN M_TRACKER_LABELS",
+   "WARN S_INDEX",
+   "WARN S_PARTICIPANT",
+   "WARN S_REPORT_TIMING",
+   "WARN T_EMPTY",
+   "WARN T_IMU_PAIR",
+   "WARN T_PTS"
+  ]
+ },
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+  "generated_at_utc": "2026-10-14T12:18:39.150932+00:00",
+  "generated_by": "scripts/canonicalise_dataset.py",
+  "frame": "Z-up, metres, levelled per Nokov capture block; z = 0 at the Nokov origin; x/y heading as Nokov (global, not per-take)",
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+  "plane_status": "ok",
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+   "headtop_p95_mm": 1652.0
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+  "release_path": "actions/locomotion_primitives/P31/session_026",
+  "family": "locomotion_primitives",
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