Corrections record
Public safety / First published
Dense Fog Advisory issued Nov. 1, 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-c19c19bba184ccd7d67bf94f9b5440dcafa3c729-002-1
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
Automated update from the source feed — no human edit
The body text changed; the headline did not. (compared against version 1)
Added (2 lines)
- The National Weather Service superseded this message at Nov. 1, 2026, 11:04 a.m. MST / 12:04 p.m. CST with a later one. This article records the message as issued.
Content hash:
d6f2f6a80486b923b4cab0ebebb6a9c80edc0ac4ca997d32266e99315920fdea -
Version 1
Initial publication
Initial automated publication — no human byline
No earlier version is in this record, so there is nothing to compare against.
Content hash:
dabda56d7287fae7482d3a4eaa371aac9c9925564f07495db33a03c54c5e9744
1 correction has been issued.
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