{
  "study_date": "2026-09-06",
  "selection": "Three English Base Set Unlimited starter evolutions, selected before retrieval; not a representative market sample.",
  "calculation": "PSA 10 model estimate / PSA 9 model estimate, using unrounded USD decimal inputs; display multiple rounded to one decimal place.",
  "limitations": "Model estimates, not matched sales or offers. Confidence is not a sale probability. No raw-copy grade assessment, grading cost or profit prediction.",
  "rows": [
    {
      "card": "Charizard",
      "printing_slug": "charizard-4-base-set-unlimited-holo",
      "currency": "USD",
      "snapshot_data_date": "2026-09-06T00:00:00Z",
      "psa_9_estimate_usd": "3466.50",
      "psa_10_estimate_usd": "18641.45",
      "psa_9_confidence": 97.0,
      "psa_10_confidence": 70.0,
      "multiple": "5.4",
      "latest_psa_10_sale": {
        "price": "8000.00",
        "date": "2026-08-16",
        "delta_fair_pct": -57.084883418403614
      },
      "source_url": "https://tct-api-production-38cc.up.railway.app/api/v1/printings/charizard-4-base-set-unlimited-holo",
      "source_sha256": "8f85d22e0bde7074fb4132b6328e30b56e1e94bf18ea07ad3b095a81c893b9df"
    },
    {
      "card": "Blastoise",
      "printing_slug": "blastoise-2-base-set-unlimited-holo",
      "currency": "USD",
      "snapshot_data_date": "2026-09-06T00:00:00Z",
      "psa_9_estimate_usd": "1024.21",
      "psa_10_estimate_usd": "10466.80",
      "psa_9_confidence": 96.0,
      "psa_10_confidence": 31.0,
      "multiple": "10.2",
      "latest_psa_10_sale": {
        "price": "7500.00",
        "date": "2026-08-26",
        "delta_fair_pct": -28.344861848893643
      },
      "source_url": "https://tct-api-production-38cc.up.railway.app/api/v1/printings/blastoise-2-base-set-unlimited-holo",
      "source_sha256": "809497bfe73db4c81736c4d89bafa5432f39b986e96578e09999cc9c776b76f2"
    },
    {
      "card": "Venusaur",
      "printing_slug": "venusaur-15-base-set-unlimited-holo",
      "currency": "USD",
      "snapshot_data_date": "2026-09-06T00:00:00Z",
      "psa_9_estimate_usd": "616.63",
      "psa_10_estimate_usd": "3310.48",
      "psa_9_confidence": 95.0,
      "psa_10_confidence": 78.0,
      "multiple": "5.4",
      "latest_psa_10_sale": {
        "price": "2025.00",
        "date": "2026-09-02",
        "delta_fair_pct": -38.830622749571056
      },
      "source_url": "https://tct-api-production-38cc.up.railway.app/api/v1/printings/venusaur-15-base-set-unlimited-holo",
      "source_sha256": "08bcb8dc313dd9fbccbfa17284adace369a7cacec23edbc009ae51d427d7c377"
    }
  ]
}