[
  {
    "kind": "other",
    "name": "Final GCB 2025 national fossil carbon workbook",
    "source": "https://meta.icos-cp.eu/objects/loCXyssaalv6DPdO6Qdj90qQ",
    "details": "CC-BY-4.0 workbook, SHA-256 verified against ICOS metadata. Frozen bytes in data/national-fossil-2025.xlsx; national consumption estimates through 2023."
  },
  {
    "kind": "other",
    "name": "World Bank WDI GDP and economy-list API snapshots",
    "source": "https://api.worldbank.org/v2/",
    "details": "CC-BY-4.0; NY.GDP.MKTP.KD in constant 2015 US dollars, 2005-2024 query; only 2005-2023 used. Source release 2026-07-13. Frozen JSON responses and exact URLs, hashes, retrieval timestamp in data/sources.json."
  },
  {
    "kind": "software",
    "name": "Python 3.12 with openpyxl 3.1.5",
    "source": "https://pypi.org/project/openpyxl/3.1.5/",
    "details": "Pinned env/requirements.txt. Main extraction with openpyxl; independent source XML parser uses Python standard library and Fraction."
  }
]