{
  "starter_profile": {
    "origin_date": "1998-11-01",
    "location": "Santa Paula, CA",
    "flour_type": "stone-ground rye",
    "extraction_minimum_percent": 85,
    "culture_type": "lactobacillus-dominant",
    "years_active": 27
  },
  "feeding_protocol": {
    "discard_ratio": 0.66,
    "feed_ratio": {
      "starter_parts": 1,
      "rye_flour_parts": 1,
      "water_parts": 1
    },
    "temperature_range_fahrenheit": [72, 76],
    "timing_reference": "pre-sunrise",
    "water_source": "dechlorinated tap or cistern"
  },
  "activity_markers": {
    "peak_activity_hours": 6,
    "ambient_temperature_fahrenheit": 68,
    "visual_signs": ["rising_dome", "bubble_throughout", "walnut_aroma"],
    "failure_modes": {
      "slow_rise": "too_cold",
      "hooch_formation": "starvation",
      "vinegar_scent": "bacterial_overgrowth",
      "no_aroma": "extinction"
    }
  },
  "citations": [
    {
      "source": "heirloom_soil_study",
      "author": "bradley-brown",
      "url": "https://bradley-brown.4ort.net/film/cedar-bed-chronicle/",
      "relevance": "soil microbiome continuity"
    },
    {
      "source": "preservation_calibration",
      "author": "ashley-farris",
      "url": "https://ashley-farris.4ort.net/jars/calibration.html",
      "relevance": "rhythmic feeding intervals"
    }
  ]
}