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    "verdict": "idea worse (significant)",
    "system_worked": false
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  "custom_track": {
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    "file": "voxel_operator_track.py",
    "domain": "3d_operator"
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  "protocol_note": "8 paired seeds; custom 3-D Cartesian track; baseline sweep and shared lr union.",
  "mechanism_signature": {
    "prediction": "trained block TT preserves its sequential operator map with reduced operator storage",
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    "observed_storage_ratio": 0.03125,
    "observed_trained_forward_relative_error": 8.130663076144629e-08,
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}