the second scroll: the mesorah snapshot, pinned and read (bishe'arecha step 6)

Devarim 17:18 — the king writes his copy from before the priests, not from
memory. scripts/build_mesorah.py takes one open-licence version per work
per language from the Sefaria export (bucket sefaria-export, catalogue of
2026-10-02; Public Domain / CC0 / CC-BY / CC-BY-SA only, checked in every
file; no CC-BY-NC — the Bavli is Wikisource's) and lays it down beside
L1: mesorah/works/<slug>/{he,en}.json, index.json, integrity.sha256,
build_report.json. 128 works (Rashi, Onkelos, Ramban, Ibn Ezra, Sforno
on the Torah; all of Mishnah; 37 Bavli tractates; Bereshit and Shemot
Rabbah, Sifrei, Tanchuma), 256 files, 44.9 MiB, tree hash 7d5b3a6c…
computed as L1's (sorted relative path, then bytes; the two post-hash
files excluded). What is out, and why (licence), is in Terumah §E5.

Read, never fetched: korban_processor/mesorah.py finds citations as
written (Rashi on Devarim 6:5, Berakhot 2a, Mishnah Berakhot 1:1,
Bereshit Rabbah 1:1, Sifrei Devarim 32, Tanchuma Bereshit 1 …), resolves
each against the snapshot (complex works through their unnamed node,
Tanchuma by parashah), lists them as examination.mesorah_references, and
makes every passage found a given source for that examination — so a
claim about Rashi anchors in Rashi or does not. The Vav Pipeline couples
coupled(reference(R), mesorah(Work, [Address])) or not_in_mesorah; the
engine accepts mesorah/2 as a terminal and not_in_mesorah is Form 4.
VavPipeline.Mesorah pins the hash, re-reads the tree at startup and every
ten minutes, and /kodesh/health carries mesorah_hash. Mounted read-only at
/mnt/mesorah in the vav-pipeline and korban-processor images. L3
bedikot.mesorah (migration 20261013000002).

Also: the 1-in-12 Day6 serving failure of 2026-10-04 reproduced with seed
446116 — HaltMonitorTest left the system halted; it now resolves on exit
and the Day6 setup is defensive. Construction §3.11, Terumah §E5, Tamid
§1.1, bishearecha §IV, KOHEN, AGENTS. Doorpost 0638d4eb…. Elixir 604/0
(seeds 835592 and 446116), korban 294/1 skipped, Prolog bedikah 44/44,
L3 10/0.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

specs/shorashim_terumah.md

@@ -149,6 +149,22 @@ Source: Westminster Leningrad Codex (WLC) 4.20, as carried by the Open Scripture
 | 613 mitzvot in Prolog logical format | ❌ | Core encoding task. ~4-6 weeks. |
 | Relationships between mitzvot | ❌ | Dependencies, conflicts, groupings. ~2-3 weeks. |
 
+### E5. The Second Scroll — the mesorah snapshot (bishe'arecha §IV)
+
+Source: the Sefaria export (public storage bucket `sefaria-export`, catalogue `books.json` generated 2026-10-02), one chosen version per work per language, taken by `scripts/build_mesorah.py` from `scripts/mesorah_sources.json`. Only open versions: Public Domain, CC0, CC-BY, CC-BY-SA — the licence in each file is checked against the sources file and the build refuses otherwise. No CC-BY-NC text is taken (the Steinsaltz/Davidson Talmud is therefore not here; the Bavli is Wikisource's, CC-BY-SA). Sefaria and each version's source are credited in `mesorah/index.json`.
+
+| Material | Status | Notes |
+|---|---|---|
+| Rashi, Onkelos, Ramban, Ibn Ezra, Sforno on the five books | ✅ | Hebrew (public domain editions) and English (Silbermann 1929–34 public domain; Sefaria Community CC0) |
+| Mishnah, all 63 tractates | ✅ | Hebrew Torat Emet (PD); English where open |
+| Talmud Bavli, 37 tractates | ✅ | Hebrew: Wikisource (CC-BY-SA). English only where an open one exists (Cohen's Berakhot, PD) |
+| Midrash halakha: Sifra, Sifrei Bamidbar, Sifrei Devarim | ✅ | Sifra's Hebrew is a 1545 print marked "unknown" licence by Sefaria — EXCLUDED; Sifrei included |
+| Midrash aggadah: Bereshit / Shemot / Vayikra / Bamidbar / Devarim Rabbah, Tanchuma | ⚠️ | Vayikra, Bamidbar, Devarim Rabbah Hebrew are "unknown" licence — EXCLUDED; Bereshit and Shemot Rabbah and Tanchuma included |
+| Ramban on Shemot | ❌ | Hebrew "unknown" licence — excluded |
+| Mekhilta | ❌ | Not in the export catalogue under that title |
+
+Extent: 128 works, 256 files, 44.9 MiB, tree hash `7d5b3a6c…` (`mesorah/integrity.sha256`). Seven works have named nodes (Ramban on four books, Ibn Ezra and Sforno on Bereishit, Tanchuma); the reader addresses their unnamed node, and Tanchuma by parashah.
+
 ### E4. Talmudic Training Data (Kushya Generator)
 
 | Item | Status | Notes |