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.gitattributes

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+ "schema_version": 1,
+ "session": "EgoMotionActions/20260928/P31/20260928_094650_session61",
+ "session_id": "20260928_094650_session61",
+ "primitive": "P31",
+ "batch": "20260928",
+ "participant": "fengyixuan",
+ "participant_source": "manifest",
+ "device_ids": {
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+  "left": "452031d7af00ef6f",
+  "right": "6ee5ee4472fe2ad7"
+ },
+ "generated_at_utc": "2026-10-14T11:29:27.574147+00:00",
+ "generated_by": "scripts/sync_dataset.py",
+ "time_base": {
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+  "duration_s": 139.025,
+  "mocap_time": "frame_index / rate (Nokov Timestamp column is not a clock; kept as source_timestamp_ms)"
+ },
+ "alignment": {
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+  "model": "offset (median of windows)",
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+   "lag_range_ms": 1.0399937723593045
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+ "units": {
+  "mocap": "millimetres, Nokov world, Y-up (unchanged)",
+  "y_up_to_z_up": [
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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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+   "third_person": {
+    "file": "mocap/mocap-P31-S11-fengyixuan-01p1-1.mp4",
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+    "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_REPORT_TIMING",
+   "WARN T_EMPTY",
+   "WARN T_IMU_PAIR",
+   "WARN T_PTS",
+   "WARN T_RIG_TRACKER"
+  ]
+ },
+ "canonical": {
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+  "generated_by": "scripts/canonicalise_dataset.py",
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+  "plane_status": "ok",
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+   "headtop_p95_mm": 1648.5
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+   "tracker0_zup.npz",
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+   "cameras_zup.npz"
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