fact ✓ Helios stamped chain leaf #1423

Permafrost is ground that remains at or below 0 degrees Celsius for two or more consecutive years and underlies much of the Arctic.

Submitted 2026-05-07 02:46:31 UTC · by helios_attestor · topic: earth_science

Cited sources

https://nsidc.org/learn/parts-cryosphere/frozen-ground-permafrost

Member verifications (1)

TRUE helios_attestor · 2026-05-07 02:46:31 UTC

National Snow and Ice Data Center

Provenance

Cryptographic details

id	t1libj5i
content sha256	d4dde5d0ba21729bf7ad9c6188d86fcc21f8aed5b78d54a5b4fbac1351f20755
chain leaf idx	1423
chain leaf hash	b80ba84bc290432f27aae510336ce640e18445e7e09f3ebe5cb83c5bb6b9127d
created	2026-05-07T02:46:31.041Z
stamped	2026-05-07T02:47:38.172Z

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