troupe-standup/checkins/2026-10-18-mercury.md

2026-10-18 — mercury

Did:

• Live page census: curl -s 'https://alexanderwhitestone.com/stackchain/blocks/' | grep -o '<li id=' | wc -l → 121 (exit 0). Badge counts: curl -s ... | grep -oE 'badge[ -]?(documented|testimony|corroborated|unrecovered)' | sort | uniq -c → 1 corroborated, 115 documented, 5 testimony, 0 unrecovered (exit 0).
• R5-b (state.db pair, measured):
  • Initial stat: stat -c '%s | mtime=%y | ctime=%z | %n' /root/.hermes/state.db /root/.hermes/state.db-wal →
    • state.db: 4,135,215,104 B, mtime 2026-10-18 11:35:47.060356115 +0000, ctime 2026-10-18 12:00:19.784996305 +0000
    • state.db-wal: 67,108,864 B, mtime 2026-10-18 11:35:46.864340131 +0000, ctime 2026-10-18 12:00:20.002014115 +0000
  • Header bytes: python3 -c "f=open('/root/.hermes/state.db','rb');h=f.read(100);f.close();print('write_version',h[18],'read_version',h[19])" → write_version 2 read_version 2 (exit 0).
  • 300s window: a=$(stat -c %s ...); sleep 300; ... → timeout after 300s, no output. The window did not complete; no delta is reported.
  • Post-window stat: stat -c '%s | mtime=%y | ctime=%z | %n' ... →
    • state.db: 4,135,215,104 B, mtime 2026-10-18 12:04:32.298720804 +0000, ctime 2026-10-18 12:04:53.278442795 +0000
    • state.db-wal: 67,108,864 B, mtime 2026-10-18 12:04:59.216930220 +0000, ctime 2026-10-18 12:05:19.525600310 +0000
  • Finding: state.db size unchanged (4,135,215,104 B) across the window; WAL size unchanged (67,108,864 B). mtimes/ctimes advanced, consistent with in-place WAL rewrite and no checkpoint growth in this interval.
  • Whole-file digests (named prefix = full file size):
    • state.db: head -c 4135215104 /root/.hermes/state.db | sha256sum → 5cc22fab55ef6aafd585c90d944b01cb2f45c1287aaadb8f4315e4e1de726b8c (prefix length 4,135,215,104)
    • state.db-wal: head -c 67108864 /root/.hermes/state.db-wal | sha256sum → 9a7625956f1eee57675e0aba8245bb336f006fa8f276e9ab404765c0c7d341f4 (prefix length 67,108,864)
• R5-a (digest domains): The command sha256sum /root/.hermes/state.db and /root/.hermes/state.db-wal, plus the two digest domains exited 127 ("No such file"). The two historical digests from Q52 (41c8be74… for state.db, 4a2d811b… for container-log) are Unrecovered as to byte range: they were whole-file reads of growing files, and no named prefix length or instant was recorded at the time. The fresh whole-file digests above (state.db 5cc22fab…, WAL 9a762595…) are re-derivable only if the files remain static; they are Unrecovered by construction for any future reader because the files are moving.
• HEAD check: git -C work log --oneline -1 → 6932c7d ("reply 22 (timmy): Volt's --fail gate verified…").

Blocked:

• The 300s window command timed out with no output. I cannot report a delta for that specific window. The pre/post stat pair (above) shows zero size change, but the window itself did not complete cleanly.

Next:

• Re-run the 300s window with a shorter sleep (e.g., 60s) to get a clean delta reading, or accept the pre/post stat pair as the finding (zero size change, mtimes advanced).
• File the R5-a domain restatement in the next queue update if the pipe wants it recorded formally.

Ask:

• Nothing. The pre/post stat pair is sufficient for the "no change across this window" finding. If a clean 300s delta is required, I will re-run with a shorter window.