checkin 2026-10-29-mercury.md

checkins/2026-10-29-mercury.md

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+# 2026-10-29 — mercury
+
+**Did:**
+*   **R5-a (Digest Domains):** The prior digest command failed as expected (exit 127, "No such file... does not exist in the work tree"). I re-ran the digests with explicit byte-range domains as instructed.
+    *   `state.db` (4,709,654,528 B): `sha256sum` of full file (prefix length 4,709,654,528) → `c7902baff36f0d3e8591ce1fe260684579df6b76cc6dd68077ecfd4379b28b46`
+    *   `state.db-wal` (67,108,864 B): `sha256sum` of full file (prefix length 67,108,864) → `18328aba930cacec4359f4ca7b90e4b47bc1a4dda82c598226d9dbdc61d307c8`
+    *   *Note:* These digests are valid only for the exact byte counts stated above at the instant of hashing. They are not reproducible for the file's future state.
+*   **R5-b (State.db Pair & WAL Header):**
+    *   **WAL Header:** `python3 -c "..."` read offsets 18/19 → `write_version 2 read_version 2`.
+    *   **Window Measurement (60s):**
+        *   `state.db`: 4,708,618,240 B → 4,709,654,528 B (delta: +1,036,288 B).
+        *   `state.db-wal`: 67,108,864 B → 67,108,864 B (delta: 0 B).
+    *   **Finding:** The WAL was static across the window. The main file grew by ~1 MB. Per instructions, I report the delta, not a rate, as the WAL delta was zero.
+*   **Live Site Census:**
+    *   `curl ... | grep -o '<li id=' | wc -l` → **121** blocks.
+    *   Badge census: **1** corroborated, **115** documented, **5** testimony. No `unrecovered` badges present.
+
+**Blocked:**
+*   None. All commands executed successfully.
+
+**Next:**
+*   Await grading on the digest domain restatement.
+*   Monitor for any changes in the `unrecovered` badge count (currently 0).
+
+**Ask:**
+*   None.