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+ "session_id": "20260828_081425_session52",
+ "primitive": "P29",
+ "batch": "20260828",
+ "participant": "wangyang",
+ "participant_source": "manifest",
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+  "left": "cc5681142208e29a",
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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": "2026-08-27"
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+ "flags": [],
+ "sanity": {
+  "status": {
+   "structure": "WARN",
+   "markers": "WARN",
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+  },
+  "verdict": "READY_WITH_WARNINGS",
+  "issues": [
+   "WARN M_FLOOR_SHIFT",
+   "WARN M_RIGID",
+   "WARN M_SPIKES",
+   "WARN M_TRACKER_LABELS",
+   "WARN S_INDEX",
+   "WARN S_MOCAP_TS",
+   "WARN S_PARTICIPANT",
+   "WARN T_UNITS"
+  ]
+ },
+ "canonical": {
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