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    "one_mode_low_frequency_tip_rms_discrepancy_m": 6.8667282414814e-7,
    "one_mode_high_frequency_tip_rms_discrepancy_m": 4.133692722463994e-5,
    "maximum_tip_bending_m": 0.001695798496286638,
    "maximum_twist_angle_rad": 0.0018554096534427415,
    "maximum_peak_shaft_strain_energy_j": 0.0003331452240053234,
    "maximum_normalized_work_energy_residual": 0.0077983620240835785,
    "time_refinement_worst_normalized_residual": [
      0.0077983620240835785, 0.0039001762629994286
    ],
    "maximum_trajectory_relative_error": 3.8386584286792626e-13,
    "maximum_force_relative_error": 2.1529555915833498e-10,
    "matched_load_work_cell_count": 126,
    "matched_load_work_total_cell_count": 384,
    "matched_final_speed_difference_range_m_s": [
      -0.028519582842675667, 0.02123340599224041
    ],
    "excluded_coarse_step_probe_count": 2,
    "failed_small_deflection_cell_count": 0,
    "universal_passive_shaft_speed_benefit": "rejected",
    "calibration_status": "synthetic_reference_not_equipment_calibrated",
    "higher_mode_boundary": "the committed six-mode beam shows materially larger discrepancy under short high-frequency loading than under slow loading",
    "support_boundary": "ground reaction and free moment are absent",
    "matching_boundary": "post-registration matching is descriptive and does not randomize or identify a causal shaft effect",
    "human_or_coaching_inference": "unsupported",
    "json_sha256": "2b074dabe952d98c3ac6e5e1582f65710f47b0566e4c5eccc5dfbc471a8b7864",
    "npz_sha256": "bf49e945b838fc0307f5f50d58fcfad6b9755a0ff389a4e8eb9943bd49dcbf3b",
    "figure_svg_sha256": "7d330f6a7b0f8e5bf9f7d6992f226bbe967eaf4e5e96ab6914852d1b8ab4f2cb"
  },
  "articulated_ground_atlas": {
    "analysis_type": "finite_ground_free_moment_falsification_atlas",
    "upstream_issue": 8719,
    "state_count": 12,
    "ground_activations": ["fixed", "translation", "free_moment", "coupled"],
    "controls": ["rigid_shaft", "horizontal_restraint_removed"],
    "primary_trajectory_count": 384,
    "control_trajectory_count": 192,
    "time_steps_s": [0.00025, 0.000125],
    "horizons_s": [0.004, 0.01, 0.025, 0.05],
    "maximum_ground_force_n": 559.0948429495322,
    "maximum_intrinsic_free_moment_nm": 14.579624134620587,
    "maximum_normalized_work_energy_residual": 0.019903505365994667,
    "time_refinement_worst_normalized_residual": [
      0.019857443456570978, 0.009946440322686545
    ],
    "maximum_trajectory_relative_error": 1.77188861522611e-10,
    "maximum_initial_energy_relative_range": 0.0,
    "failed_primary_numerical_cell_count": 0,
    "failed_control_numerical_cell_count": 0,
    "failed_primary_parity_cell_count": 0,
    "failed_control_parity_cell_count": 0,
    "all_registered_gates_passed": true,
    "preregistered_primary": {
      "estimand": "five percent match on both peak grip load and total dissipated work, coupled versus fixed base",
      "matched_cell_count": 0,
      "total_cell_count": 384,
      "load_error_range": [0.0, 0.49182091621916857],
      "total_dissipated_work_error_range": [
        1.7230092995531614, 1.9988637651175676
      ],
      "work_error_cause": "only the coupled pathway contains ground damping, so total dissipated work differs by construction",
      "tolerance_required_for_any_match": 2.0,
      "verdict": "no coupled-versus-fixed cell survives the preregistered screen"
    },
    "posthoc_nonground_dissipation_screen": {
      "status": "post_hoc_sensitivity_does_not_replace_preregistered_primary_estimand",
      "definition": "grip plus shaft dissipated work; ground damping work excluded after observing the primary match failure",
      "matched_cell_count_at_five_percent": 60,
      "speed_difference_minimum_m_s": -0.0007542090561893922,
      "speed_difference_maximum_m_s": 0.013935696053175683,
      "speed_difference_positive_count": 20,
      "speed_difference_negative_count": 40
    },
    "unmatched_pathway_speed_note": "at the 50 ms horizon the unmatched translation and coupled pathways are uniformly faster than fixed, but those cells fail the registered load and work match and must not be read as a ground-pathway benefit",
    "initialization_sensitivity": {
      "note": "initialization is not innocuous; peak ground force and 4 ms club speed at the 0.125 ms step",
      "natural_zero_peak_ground_force_n": 32.7669,
      "gravity_only_peak_ground_force_n": 565.4652,
      "conditional_peak_ground_force_n": 510.2829,
      "natural_zero_club_speed_m_s": 0.2636,
      "gravity_only_club_speed_m_s": 1.9081,
      "conditional_club_speed_m_s": 0.9459,
      "conditional_solver_boundary": "the conditional solve balances only base generalized forces, not the full mechanism",
      "atlas_initialization": "natural_zero"
    },
    "ground_pathway_delivery_benefit": "not_established",
    "calibration_status": "synthetic_reference_not_human_or_force_plate_calibrated",
    "ground_law": "linear planar x-z translation and free pitch moment; not unilateral normal contact, Coulomb friction, foot segmentation, or measured pressure",
    "time_boundary": "the atlas ends at 50 ms and cannot establish whole-downswing or impact behavior",
    "human_or_coaching_inference": "unsupported",
    "json_sha256": "253d88d7d4842ff53333b6234e6cf1cc48f3879a9fc27dbe42f01bb6f8c38830",
    "npz_sha256": "0e85e2d2afa0fbb3858b83ae17e52df1a94d9fa32a764a0b0296ff60b82a0312",
    "figure_svg_sha256": "411b34d482af23da5f21484209a628ffd73119a2cb1401963d87500a2c144a63",
    "diagnostic_json_sha256": "36a1dc2f49ee08693fed9d380455de99e2593cd02e23d4281b6d23851f23c10a",
    "posthoc_json_sha256": "615558176398b47c5ca3fac8d7ea8fdbf8ee6c14d016e88fb96a531be77817a6"
  },
  "principal_boundaries": {
    "universal_human_or_coaching_strategy": "not_supported",
    "torso_rate_as_standalone_transfer_rule": "rejected",
    "quantitative_small_deflection_shaft_inference_for_current_coupled_baseline": "rejected",
    "universal_passive_shaft_speed_benefit": "rejected_at_declared_synthetic_first_mode_tier",
    "neural_synergy_or_global_task_manifold_from_local_jacobian": "not_supported",
    "subject_scaled_spatial_contact_feasibility": "reduced_tree_closed_contact_necessary_condition_passed_anatomy_and_forward_contact_open",
    "scapulothoracic_geometry": "partial_reachability_with_high_allocation_nullity_articulated_forward_test_open",
    "articulated_forward_contact": "right_censored_at_registered_five_millisecond_horizon",
    "distributed_grip_pressure_or_finger_anatomy": "not_identified",
    "finite_ground_reaction_and_free_moment": "qualified_with_zero_of_384_cells_surviving_the_preregistered_match",
    "ground_pathway_delivery_benefit": "not_established",
    "bilateral_human_grip_wrench_validation": "unexecuted_external_data_gate",
    "notebooklm_collection_review": "blocked_pending_manual_reauthentication"
  }
}