{
 "what": "self-test reference values: three recorded with the authors' full (non-standalone) evaluator, for which the explicit large-X series and the transport of the exact system agree to the digits stated per test, and two values of C4 from an independent direct numerical evaluation with certified error",
 "tests": [
  {
   "which": "C4",
   "t": "15",
   "mode": "explicit",
   "value": "0.000186403674635324428093204083739",
   "digits_required": 24,
   "source": "authors' full evaluator at t = 15 (C4): explicit series and transport agree to 37.9 digits; recorded with the 30-digit direct evaluation of Omega (Omega_direct_evaluation_30d in model_C4.json), so it agrees with the default-Omega value to about 29-30 digits"
  },
  {
   "which": "psi4",
   "t": "15",
   "mode": "explicit",
   "value": "1.70844891529044813444756729527e-8",
   "digits_required": 24,
   "source": "authors' full evaluator at t = 15 (psi4): explicit series and transport agree to 31.2 digits"
  },
  {
   "which": "C4",
   "t": "30",
   "mode": "explicit",
   "value": "0.0000164657755760802182176321745878",
   "digits_required": 24,
   "source": "authors' full evaluator at t = 30 (C4): explicit series and transport agree to 39.6 digits"
  },
  {
   "which": "C4",
   "t": "2",
   "mode": "transport",
   "value": "0.04325202880456263677144849780875820320",
   "digits_required": 22,
   "source": "independent direct numerical evaluation of C4 at t = 2 (point 29 of that evaluation's grid), certified to 23.6 digits"
  },
  {
   "which": "C4",
   "t": "1/10",
   "mode": "transport",
   "value": "0.51841666676306847084061579173662684732",
   "digits_required": 24,
   "source": "independent direct numerical evaluation of C4 at t = 1/10 (point 01 of that evaluation's grid), certified to 26.4 digits; the authors' transport of the exact system gives 0.5184166667630684708406157917"
  }
 ],
 "PRODUCER": {
  "produced_by": "authors' equilateral-line pipeline (reduction, structure and solve stages); see the repository records",
  "emitted_utc": "2026-09-27T23:35:13Z",
  "recut_utc": "2026-09-29T04:26:38Z",
  "recut": "plain-language metadata only; numerical content byte-identical"
 }
}