Corrections record
Public safety / First published
Dense Fog Advisory issued Nov. 12, 2026 by NWS Rapid City SD
Published automatically from public-record data. Whether a person reviewed any later version is recorded against that version below. This heading is the article's current headline.
Article identifier: alert-e2f52f6781cdbce56110d41bd21fffa12dd16d3d-001-1
Version history
Every published version of this article, newest first. Versions are append-only: a correction adds a row, it never rewrites history. Each version below states what changed against the version before it — which fields moved, and which body lines were added or removed.
The content hash is a SHA-256 fingerprint of that version's stored headline and body, computed when the version was written. Two versions with the same hash hold identical text; a changed hash proves the text moved. It is the tamper-evidence check — recompute it against an exported copy of a version and any silent edit shows up as a mismatch.
How we verify a hash — and how you can
Canonicalization: the hashed bytes are the version's stored headline, then the two characters ||, then the version's stored body markdown — UTF-8, SHA-256, lowercase hex. Nothing else is in the input: no normalization, re-wrapping or rendering is applied first, no trailing newline is added, and no other field (including the parent version's id) is mixed in.
Export a version's stored headline and body, join them with the two characters ||, and take the SHA-256 of the UTF-8 bytes. It must equal the hash printed beside that version. In a shell:
printf '%s' "HEADLINE||BODY" | shasum -a 256-
Version 2
Source update — the underlying public record changed
Update from the source feed — no human edit
The body text changed; the headline did not. (compared against version 1)
Dek at this version: Dense Fog Advisory issued November 12 at 9:42PM MST until November 13 at 11:00AM MST by NWS Rapid City SD. Areas named: Rapid City; Sturgis/Piedmont Foothills; Southern Meade Co Plains.
Added (2 lines)
- The National Weather Service superseded this message at 10:58 a.m. MST (11:58 a.m. CST) Nov. 13 with a later one. This article records the message as issued.
Content hash:
79e6e9e80bd38cf4f5c43381d3c4801ec683f736119854e4d58b79c4733c74b2 -
Version 1
Initial publication
Initial publication — no human byline
No earlier version is in this record, so there is nothing to compare against.
Content hash:
9f90d68b8286db18471350211af56b1d719c8e453c67e38047f81cb1d4fbf7d4
1 correction has been issued.
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