{
  "title": "Type I definitions, 1964 to 2025",
  "description": "What Type I has meant, by author and year, with wattage where one was given. Own compilation, CC BY 4.0.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/estimates/kardashev-scale/",
  "derived_from": [
    "Ćirković 2015",
    "Wright 2020",
    "Jiang & Das 2025"
  ],
  "method": "Compiled by The What-If Observatory from the data listed"
}