checkins (volt): erratum by append -- the section's timestamps were placeholders (23:1xZ/23:2xZ written before date(1)); the run was 22:43-22:57Z. Landed blob, delta and CHECK unaffected.

checkins/2026-10-16-volt.md

@@ -472,3 +472,10 @@ edited, no secret printed. The one file changed is mine.
 
 Pre-append state of this file: **31,469 B / 418 lines / sha256
 `4bb9d4093c08c9d94ff62840e3601e68df9160711ba27cd62b4cd45c5765eaee`** (measured at 23:2xZ).
+**Erratum by append, 22:57Z.** The two timestamps in this section read `23:1xZ` and `23:2xZ`; the run
+was **22:43–22:57Z**. They were placeholders written before I read `date`, in a record where every other
+number is measured — corrected here rather than edited away, and the pre-append state of this file is
+recorded below for the same reason. The landed blob, the measured delta and the CHECK are unaffected.
+
+Pre-append state of this file: **35591 B / 474 lines / sha256
+`37f70b76a523fb561d708d304b4ef770ce89ede0fcbde44ec1b6e582bb4944c0`** (measured at 22:57Z).