{
  "standard_version": "geotz-v0.1",
  "compatible_tzdb": "2026c",
  "description": "Adversarial and ordinary probes for the GeoTZ v0.1 resolution contract.",
  "vectors": [
    { "id": "north-pole-0", "lat": 90, "lng": 0, "expect": { "timezone": "Etc/UTC", "country": "International Waters", "basis": "derived", "authority_id": "north-mathematical-pole" } },
    { "id": "north-pole-179", "lat": 90, "lng": 179, "expect": { "timezone": "Etc/UTC", "country": "International Waters", "basis": "derived", "authority_id": "north-mathematical-pole" } },
    { "id": "south-pole-0", "lat": -90, "lng": 0, "expect": { "timezone": "Antarctica/McMurdo", "country": "Antarctica", "basis": "operational", "authority_id": "aq-amundsen-scott" } },
    { "id": "south-pole-179", "lat": -90, "lng": 179, "expect": { "timezone": "Antarctica/McMurdo", "country": "Antarctica", "basis": "operational", "authority_id": "aq-amundsen-scott" } },
    { "id": "arctic-source-gap", "lat": 78.53, "lng": 178.304, "expect": { "timezone": "Etc/GMT-12", "basis": "derived", "authority_id": "global-fallback-12" } },
    { "id": "antarctic-surface", "lat": -85, "lng": 30, "expect": { "timezone": "Etc/GMT-2", "country": "Antarctica", "basis": "derived", "authority_id": "antarctic-surface-2" } },
    { "id": "mcmurdo-centre", "lat": -77.833333, "lng": 166.6, "expect": { "timezone": "Antarctica/McMurdo", "country": "Antarctica", "basis": "operational", "authority_id": "aq-mcmurdo" } },
    { "id": "mcmurdo-outside-enclave", "lat": -77.5, "lng": 166.6, "expect": { "timezone": "Etc/GMT-11", "country": "Antarctica", "basis": "derived", "authority_id": "antarctic-surface-11" } },
    { "id": "vostok-centre", "lat": -78.4, "lng": 106.9, "expect": { "timezone": "Antarctica/Vostok", "country": "Antarctica", "basis": "operational", "authority_id": "aq-vostok" } },
    { "id": "south-pole-enclave-inside", "lat": -89.82, "lng": 0, "expect": { "timezone": "Antarctica/McMurdo", "country": "Antarctica", "basis": "operational", "authority_id": "aq-amundsen-scott" } },
    { "id": "south-pole-enclave-outside", "lat": -89.7, "lng": 0, "expect": { "timezone": "Etc/UTC", "country": "Antarctica", "basis": "derived", "authority_id": "antarctic-surface-0" } },
    { "id": "antimeridian-west-exact", "lat": 10, "lng": -180, "expect": { "timezone": "Etc/GMT+12", "basis": "maritime" } },
    { "id": "antimeridian-east-canonicalized", "lat": 10, "lng": 180, "expect": { "timezone": "Etc/GMT+12", "basis": "maritime" } },
    { "id": "kiribati-date-extension", "lat": -8, "lng": -153, "expect": { "timezone": "Etc/GMT-14", "basis": "maritime", "shift_hours": 24 } },
    { "id": "chatham-side-ocean", "lat": -44, "lng": -175, "expect": { "timezone": "Etc/GMT-12", "basis": "maritime", "shift_hours": 24 } },
    { "id": "central-pacific-baseline", "lat": 0, "lng": -170, "expect": { "timezone": "Etc/GMT+11", "basis": "maritime", "shift_hours": 0 } },
    { "id": "luxembourg-rounding", "lat": 49.773, "lng": 6.511, "expect": { "timezone": "Europe/Luxembourg", "basis": "civil" } },
    { "id": "cancun", "lat": 21.1619, "lng": -86.8515, "expect": { "timezone": "America/Cancun", "basis": "civil" } },
    { "id": "merida-yucatan", "lat": 20.9674, "lng": -89.5926, "expect": { "timezone": "America/Merida", "basis": "civil" } }
  ]
}