{
  "version": "2026-09-20",
  "purpose": "Claim-level source registry for IndiaTime dynamic and editorial content.",
  "sources": [
    {"id":"csir-npl","topic":"india-standard-time","url":"https://www.nplindia.res.in/clockcode/html/","authority":"CSIR-NPL","use":"Official Indian time reference context"},
    {"id":"iana-tz","topic":"time-zones","url":"https://www.iana.org/time-zones","authority":"IANA","use":"Timezone and daylight-saving rules"},
    {"id":"rbi-rtgs","topic":"banking","url":"https://www.rbi.org.in/scripts/FS_FAQs.aspx?Id=65","authority":"Reserve Bank of India","use":"RTGS availability; not branch opening status"},
    {"id":"nse-market","topic":"markets","url":"https://www.nseindia.com/static/market-data/market-timings","authority":"NSE India","use":"Exchange sessions; verify current circulars and holidays"},
    {"id":"ujjain-observatory","topic":"ujjain","url":"https://ujjain.nic.in/en/tourist-place/observatory/","authority":"District Administration Ujjain","use":"Observatory and heritage context"},
    {"id":"greenwich-meridian","topic":"gmt-utc","url":"https://www.rmg.co.uk/stories/time/what-prime-meridian-why-it-greenwich","authority":"Royal Museums Greenwich","use":"Prime meridian and Greenwich history"},
    {"id":"natural-earth","topic":"world-map","url":"https://www.naturalearthdata.com/about/terms-of-use/","authority":"Natural Earth","use":"Illustrative public-domain geography; boundary caveat applies"},
    {"id":"suncalc","topic":"sun-moon","url":"https://github.com/mourner/suncalc/tree/v1.9.0","authority":"SunCalc","use":"Approximate solar and lunar calculations; not a full Panchang engine"}
  ],
  "requiredRecordFields": ["sourceId", "verifiedAt", "calendarConvention", "region", "status"]
}