{
  "codes": [
    "USD",
    "EUR",
    "GBP",
    "SEK",
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  ],
  "start": "2026-09-01",
  "end": "2026-09-30",
  "timezone": "UTC",
  "current_day_omitted": true,
  "captured_at": "2026-10-12T16:23:47.013Z",
  "source": "https://currency-converter.live/api/v1/history?days=365",
  "source_sha256": "d6f3dd93a301a5c3f65a6f86cdfc0265b657bbdfec3efbf7a8321a192095ba2c",
  "archive_kind": "observed_reference_snapshots",
  "calendar_dates": 30,
  "complete_dates": 24,
  "missing_or_incomplete_dates": 6,
  "comparison_codes": [
    "USD",
    "EUR",
    "GBP",
    "SEK",
    "NOK"
  ],
  "note": "Immutable September subset of the production history API response captured at the stated time. Values are USD per currency unit. One latest recorded row per completed UTC date is selected before requiring USD, EUR, GBP, SEK and NOK to be finite and positive. Both Nordic reports compare exactly the same complete dates. Missing values are retained as null, never estimated or filled. These are sampled reference observations, not exchange closing prices or actual traveller payments. Full row-level upstream provenance is not retained for every older entry. source_sha256 identifies the exact full API response archived privately for this capture, not this subset file."
}