# Named Noah and Shem refinements: source and novelty review

September 29, 2026 UTC. Purpose: support a new comparison of Flood-only, Noah/Shem-only, and Flood-plus-Noah/Shem partitions while preserving the declared Rounded source state and accepted SP Fall head.

## 1. Regular Noah coordinates

| Tradition | Declared Rounded Flood | Noah birth | Source justification |
|---|---:|---:|---|
| MT | 2456 | 3056 | File51a §3.1 explicitly lists Rounded Noah 3056; File52c §§3.3–3.4 explicitly admits Noah-only and Noah+Flood refinements with the 600 leg. |
| LXX | 3236 | 3836 | The already completed `c1132_c1431/model/Moses_LXX_native_complete_path.json` explicitly reconstructs Rounded Noah 3836, Shem 3336 and Arphaxad 3236, from the 500+100 source rows, without Shem +2. Its Rounded Creation is 5486. Thus this is available inside the same native-Cainan Rounded model, not imported from an Actual Gear-2 table. File47 §9.2 corroborates 3836/3336/3236 in its separately tagged SP-based+Cainan pairing state. |
| SP | 3106 | 3706 | Use the selected lower Rounded Flood and the retained 600-year Noah–Flood leg, giving 3106+600. File47 §6.1 independently lists SP Noah 3706, Shem 3206 and Arphaxad 3106 in S0/T0/J215. Treat that table as corroboration of the local Noah–Flood relation; it does not supply a new full Rounded pre-Flood SP genealogy. The accepted Fall 4406 remains the head of this selected trunk. |

For LXX, the completed Rounded path is particularly strong evidence: it carries an explicit source-state string, `nativeCainanON; common selectedTerah70 andRoundedMoses1526; strictcomparison omitsShem+2`. The Noah point is part of that already reconstructed field. The older C1132–C1431 local prefix and recovered sealed packet contain this model; bind whichever edition the main continuation uses.

The six selected trunk nodes therefore justify the original paths:

- MT: 1406 → 2456 → 3056 → 4106.
- LXX: 1406 → 3236 → 3836 → 5486.
- SP: 1406 → 3106 → 3706 → 4406 (Fall).

Do not move the selected Flood to Actual G2 2458/3238/3108, do not add the SP one-year companion, and do not apply an extra 215 shift. The current test is a refinement of already declared Rounded trunks. It does not assert that the complete Actual genealogies have the same dates.

## 2. Cumulative Shem coordinates

| Tradition | Declared Rounded cumulative Flood seam | Shem birth | Source justification |
|---|---:|---:|---|
| MT | 4836 | 5436 | File51a §16.2 explicitly gives the Rounded 600-year Shem row at 5436 and following Arphaxad/Flood boundary at 4836. Later File52c §3.5 repeats it and distinguishes cumulative Shem death from regular Shem chronology. |
| LXX | 5746 | 6346 | Supplied comparative study §4.1 explicitly lists cumulative Shem 6346 and Flood 5746; the difference is 600. Its §§2.1 and 3 retain the same native-Cainan full-430 Rounded cumulative field. |
| SP | 4716 | 5316 | The admitted cumulative Flood seam and unaltered Shem lifespan give 4716+600=5316. File53 §19 corroborates the source envelopes 5316–5309 for cumulative Shem birth and 4716–4709 for Flood/Shem death/Arphaxad, maintaining a 600-year arc. Use the calculated Rounded 5316 here, not an undifferentiated label copied from an Actual envelope. |

The source interpretation is serial lifespan stacking: the cumulative Shem birth boundary lies one complete 600-year life before the cumulative Shem-death/Arphaxad/Flood seam. It is not an assertion that historical regular Shem died at the Flood. The accepted SP Fall adjustment acts at 13396; it leaves the selected lower Flood and the Shem lifespan unchanged.

These give original paths:

- MT: 1406 → 4836 → 5436 → 14006.
- LXX: 1406 → 5746 → 6346 → 14896.
- SP: 1406 → 4716 → 5316 → 13396 (Fall).

## 3. Existing refinement results and the exact novelty boundary

MT Regular Noah-only and Flood+Noah refinements are already explicit in File52c §§3.3–3.4 and in the existing reader's “Original duration words and the inverse backbone.” Both give the established 12026/14726 heads.

MT Cumulative Flood+Shem refinement is also **already established**. File52a §11.1 gives original 3430+600+8570 and reversed 3430+600+7580, yielding **13016** from 1406. File52a §11.2 adds a separate cumulative Noah-centered construction with 3430+1550+7620, also yielding 13016. File52b §2.6 repeats them. Later File52c §3.4 cites these secondary branches, with the corresponding completed 15716 head. The original files were read directly inside the supplied `_490d-unified-chronology.zip`; exact relevant excerpts with member hashes are saved beside this review.

Do not confuse the existing **Flood+Shem** result with a **Shem-only** split. The latter has original legs 4030+8570 and one-pass values 3040+7580, returning 12026. This does not correct File52a's 13016; it is a different partition of the same source trunk.

The supplied September 28 LXX/SP study describes **Flood-only** spines. It does not give the systematic LXX or SP Noah/Shem-only and fully refined alternatives. The prior reader reproduces those six Flood-only spines and the existing MT Regular refinements, but does not present the full six-construction partition comparison. Neither File52a nor File52b contains 3836, 6346 or 5316, and their referenced refinement sections are explicitly MT. The new comparative partition law should therefore be classified as a newly derived extension, with the MT cases marked inherited controls.

This novelty check is bounded to the relevant canonical inverse files, supplied comparative study, completed reader and C1432. It is not a claim that every older research notebook has been exhaustively searched.