The 03:00 WORM verification cron stamped last_integrity_check_at on
document_attachments. enforce_period_lock_documents() fires on any UPDATE of a
row whose journal entry sits in a closed or locked period, without checking
whether the entry link actually changed, so a read-only integrity stamp was
rejected. The queue orders last_integrity_check_at ASC NULLS FIRST, so the
rejected rows re-sorted to the head every night and the batch became
permanently 200/200 blocked. Both call sites discarded the update error, so
nothing logged and nothing alerted.
Prod state: 34 557 current-version documents, 24 083 never checked, last
successful stamp 2026-08-31 03:00, nightly successes already decayed to
single digits.
Migration 017's enforcement triggers are legally required and never-touch, so
this does not narrow the trigger. The verification outcome moves to its own
document_integrity_checks table and the cron stops writing document_attachments
altogether, which takes the trigger off the write path. The legacy column stays
in place. Failures are now counted, logged and reported in the route's summary:
the silence is why this went unnoticed for weeks.
Claude-Session: https://claude.ai/code/session_016ifKg6Ec67A39oxfGPU1yc
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jakob Wennberg
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