{
  "conditional_standard_uncertainty_speed_m_s": 0.092128355,
  "dataset_kind": [
    "synthetic_demo"
  ],
  "fitted_speed_m_s": 343.131285867,
  "fixed_reference_rmse_hz": 0.432791858,
  "free_intercept_conditional_standard_uncertainty_hz": 0.24127024,
  "free_intercept_diagnostic_hz": -0.254423551,
  "free_intercept_slope_m_s": 343.303794827,
  "frequency_rmse_hz": 0.425231748,
  "interpretation": "Synthetic benchmark only; no empirical finding.",
  "max_abs_standardized_residual": 1.777945961,
  "model": "f_n = n v / (2 L); fitted intercept fixed at zero",
  "project": "geometry-resonance",
  "reduced_chi_squared": 1.24534355,
  "reference_speed_m_s": 343.2,
  "sample_count": 12,
  "synthetic_demo": true,
  "uncertainty_assumption": "Small independent Gaussian errors; effective variance; supplied sigmas known; no correlated calibration, boundary correction, or temperature uncertainty."
}