{
  "title": "Check my math: how many people have ever lived",
  "description": "Each step of the two roads, with births counted through 2022: formula, input, result, units, source number and URL, source type, whether we recomputed it, and its Seeing mark. Road 1 values are conclusions from PRB 2022. Third-party values are single figures via Our World in Data, with upstream not traced back.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/estimates/how-many-people-have-ever-lived/",
  "derived_from": [
    "PRB 2022",
    "OWID (HYDE 3.3, Gapminder v7, UN WPP 2024)"
  ],
  "method": "Compiled by The What-If Observatory from the data listed",
  "data_credit": [
    "OWID (HYDE 3.3, Gapminder v7, UN WPP 2024); upstream via Our World in Data not traced back"
  ]
}