{
  "all_indices_feature_sha256": "a7dbb816fb874aa49d88712ef257d1d0cfde576bbb15c8f8ba9da751529ed4af",
  "all_indices_source_sha256": {
    "NOAA_CPC_SOI": "ab5ad574dcb13e58dceb303ca86f70e707f84f0a310b42317f42ca932b01f8d4",
    "NOAA_PSL_NINO34": "a97c6d76a1c715e08e4117c9c104196c018dd9842480bdd19b608b735832c432",
    "NOAA_PSL_QBO": "2d06ed3d14b28e948d55098ff4ce9bbd894d4eeac1fbb17e5d9895efe9d7afb0",
    "NOAA_PSL_TNA": "4eec8e293c601073994970ed06db95573283105b0de0210aefca078f9441b637"
  },
  "built_at_utc": "2026-11-13T12:50:28.303826Z",
  "csu_april_2004_2023_diagnostic": {
    "baseline_mae": 4.9,
    "claim_noaa_or_csu_superiority": false,
    "csu_source_limit": "Manual CSU archived historical table; individual original issue timestamps not authenticated",
    "evidence_class": "RETROSPECTIVE_DIAGNOSTIC",
    "independently_verified": false,
    "matched_seasons_n": 20,
    "note": "resampling by season, historical archive/revisions and release gates still require audit",
    "paired_bootstrap_95ci": [
      -1.4701,
      1.0066
    ],
    "paired_mae_improvement": -0.2433,
    "poseidon_mae": 5.1433,
    "same_era_note": "Contemporaneous forecast vintages are not reproduced by modern revised NOAA target record",
    "win_supported": false,
    "years": [
      2004,
      2005,
      2006,
      2007,
      2008,
      2009,
      2010,
      2011,
      2012,
      2013,
      2014,
      2015,
      2016,
      2017,
      2018,
      2019,
      2020,
      2021,
      2022,
      2023
    ]
  },
  "forecast_issue_count": 0,
  "independent_forecast_skill_proven": false,
  "named_storm_20y_ocean_atmosphere_ablation": {
    "atmosphere_combined": {
      "bias": -3.9686,
      "mae": 5.1844,
      "n": 20,
      "rmse": 6.7595
    },
    "climatology": {
      "bias": -3.9466,
      "mae": 5.1433,
      "n": 20,
      "rmse": 6.7053
    },
    "ocean_atmosphere": {
      "bias": -3.5454,
      "mae": 4.8544,
      "n": 20,
      "rmse": 6.4255
    },
    "ocean_combined": {
      "bias": -3.5281,
      "mae": 4.8338,
      "n": 20,
      "rmse": 6.3944
    },
    "ocean_nino34": {
      "bias": -3.9694,
      "mae": 5.1762,
      "n": 20,
      "rmse": 6.7421
    },
    "ocean_tna": {
      "bias": -3.535,
      "mae": 4.8146,
      "n": 20,
      "rmse": 6.3728
    }
  },
  "noaa_aoml_crosschecks": {
    "1851": {
      "hurricanes": 3,
      "major_hurricanes": 1,
      "named_storms": 6
    },
    "2024": {
      "hurricanes": 11,
      "major_hurricanes": 5,
      "named_storms": 18
    },
    "2025": {
      "hurricanes": 5,
      "major_hurricanes": 4,
      "named_storms": 13
    }
  },
  "noaa_derived_sha256": "b3f567245e8dff06903f98e1c8ca95ae7b0f15cbcdf730dde5203500bda32acd",
  "noaa_revision": "2026-09-23",
  "noaa_source_sha256": "75202780ce56c8458f16fbef5fb8a026b99b00878dbb95c458211b3e6ef125b4",
  "note": "This is a scientific QA/source-acquisition record. Even with NOAA truth imported, past forecasts were NOT independently pre-event issued.",
  "ocean_atmosphere_status": "RETROSPECTIVE_ABLATIONS_COMPLETE",
  "official_noaa_retro_replay_status": "COMPLETE_RETROSPECTIVE",
  "operational_weather_predictions": false,
  "raw_goes_satellite_pixels_ingested": false,
  "real_noaa_replay_source_sha256": "75202780ce56c8458f16fbef5fb8a026b99b00878dbb95c458211b3e6ef125b4",
  "real_ocean_and_atmosphere_observations_ingested": true,
  "research_test_process": "python3 -m unittest discover -s tests -v",
  "schema": "cpx.poseidon.research-build.v1",
  "scientific_vintage": "RETROSPECTIVE_2026_REVISED_ONLY",
  "source_repo": "OnlyClinton/CHYPHNX",
  "source_truth_status": "NOAA_1851_2025_IMPORTED_AND_AOML_CROSSCHECKED"
}