{
  "version": "2026-10-08",
  "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"
    },
    {
      "id": "nse-cas-2026",
      "topic": "markets",
      "url": "https://www.nseindia.in/static/products-services/closing-auction-session",
      "authority": "NSE India",
      "verifiedAt": "2026-10-08",
      "use": "CAS and current segment timings; not live trading status"
    },
    {
      "id": "nse-holidays-2026",
      "topic": "market-holidays",
      "url": "https://nsearchives.nseindia.com/content/circulars/CMTR71775.pdf",
      "authority": "NSE India",
      "verifiedAt": "2026-10-08",
      "use": "2026 capital-market base holiday circular; later notices can override"
    },
    {
      "id": "drik-delhi-2026",
      "topic": "festivals",
      "url": "https://www.drikpanchang.com/calendars/hindu/hinducalendar.html?year=2026&geoname-id=1273294",
      "authority": "Drik Panchang",
      "verifiedAt": "2026-10-08",
      "use": "Selected Delhi 2026 observance comparisons; no universal closure claim"
    },
    {
      "id": "imd-saka",
      "topic": "national-calendar",
      "url": "https://packolkata.imd.gov.in/panchang/en/explanation",
      "authority": "IMD Positional Astronomy Centre",
      "verifiedAt": "2026-10-08",
      "use": "National calendar conventions"
    },
    {
      "id": "mcx-hours",
      "topic": "markets",
      "url": "https://www.mcxindia.com/faq/market-operations",
      "authority": "MCX",
      "verifiedAt": "2026-10-08",
      "use": "Category-specific commodity trading hours"
    },
    {
      "id": "vikramaditya-original",
      "topic": "vedic-clock",
      "url": "https://www.mvspujjain.com/vikramaditya-vedik-ghadi/",
      "authority": "Maharaja Vikramaditya Shodhpeeth",
      "verifiedAt": "2026-10-08",
      "use": "Original clock’s inauguration, sunrise operation and published scope; IndiaTime is an independent illustration"
    }
  ],
  "requiredRecordFields": [
    "sourceId",
    "verifiedAt",
    "calendarConvention",
    "region",
    "status"
  ]
}