# 490d C334–C343 reading index and restart guide

**All ten steps are complete. C344 has not been executed.** 24 September 2026.

Read the C343 synthesis and checkpoint first. Use the compact restart kit as the active packet; the continuation archive contains all ten sealed evidence packets and all 30 individual deliverables. Earlier archives remain selective reference libraries. Current corrections override stale archived next-step instructions.

## Main result

C334–C343 complete. Primary SP Noah paths support a source-qualified Noah-held duration ladder1058→1150→1250 under E=25/23, with refinement460+490+108+92+100. Companions retain the sourced double-E endpoints but their actual MT Shem span is1149; the valid502/98 control gives1152. The full regular ladder does not select cumulative a:02 and22 remain until the separate17K condition. Scalar/C89 prior art, source qualifications and phase/map limits are retained.

## Read first

- [490d_C343_Noah_Held_Double_Expansion_and_Source_Binding_Synthesis_20260924.md](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C343_Noah_Held_Double_Expansion_and_Source_Binding_Synthesis_20260924.md)
- [490d_Mirror_Checkpoint_After_C343_20260924.md](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C343_20260924.md)

## Ten-step locator

| Step | Report | Checkpoint | Evidence |
|---|---|---|---|
|C334 — Shem two-year source dependency and scope audit|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C334_Shem_Two_Year_Source_Dependency_Audit_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C334_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C334_Evidence_20260924.zip)|
|C335 — Two-year coordinate directions and held endpoints|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C335_Two_Year_Coordinate_Directions_and_Endpoint_Footprints_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C335_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C335_Evidence_20260924.zip)|
|C336 — Coherent source-pair lifts of the two-year choices|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C336_Coherent_Source_Pair_Lifts_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C336_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C336_Evidence_20260924.zip)|
|C337 — Source factorization of the two 2K sides|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C337_Source_Factorization_of_Two_2K_Sides_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C337_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C337_Evidence_20260924.zip)|
|C338 — Source-qualified Noah-held double-E interval ladder|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C338_Noah_Held_Double_E_Source_Interval_Ladder_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C338_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C338_Evidence_20260924.zip)|
|C339 — Double-E ladder under the two named Shem bindings|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C339_Double_E_Ladder_Shem_Binding_Control_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C339_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C339_Evidence_20260924.zip)|
|C340 — Noah death refinement of the double-E ladder|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C340_Noah_Death_Refinement_of_Double_E_Ladder_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C340_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C340_Evidence_20260924.zip)|
|C341 — Exact phase and affine-map limits of the ladder|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C341_Exact_Phase_and_Affine_Limits_of_Double_E_Ladder_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C341_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C341_Evidence_20260924.zip)|
|C342 — Double-E dependency, prior art and selector audit|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C342_Double_E_Dependency_Prior_Art_and_Selector_Audit_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C342_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C342_Evidence_20260924.zip)|
|C343 — Noah-held double expansion and source-binding synthesis|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C343_Noah_Held_Double_Expansion_and_Source_Binding_Synthesis_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C343_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C343_Evidence_20260924.zip)|

## Restart checkpoint

Latest completed C343; C344 unexecuted and outside this authorization. Read C343 synthesis/checkpoint first; use the C343 compact restart kit as the active packet and prior archives selectively. Preserve C287 complete SP domaini2…5 and C319 control slicei3…7. Primary ladder holds on i3/i5 and matching inherited components only; no MT person companion or whole-biography dilation. C334 finds shared Shem±2 origin but no exact endpoint coupling prescription in reviewed passages. K=529,E=25/23,P=70/69. Global paired MirrorJanuaryAD1, local junctionJanuaryAD2, no civil yearzero. Regular GearsNoah/Shem/Flood only; SPminus-one persons local. No new source endpoint, phase, fitted anchor, global axis, primer, canonical or graph edit. Corrected LXX8464 supplement remains awareness only; AD3746/2300 superseded. Original unprefixed reports, Engine reports and C-series remain distinct. Earlier incompleteSeptember17 ZIP differs from the later verified intact original.

## Proposed next step — unexecuted

Audit File_02 §6.3’s explicitly prescribed gap conversion598×300/299=600 against the retained adjacent-Gear MT Noah/Flood endpoints. Test the existing held-endpoint realizations and their effect on the Noah-held2K/E ladder, keeping companion and modal states separate. No new endpoints, Gears, phases or anchors.

The current authorization ends at C343. A new instruction is required before C344.

## Verification and access

All 30 individual deliverables were saved. All ten sealed ZIPs passed CRC, payload hash/size and certificate checks. Fresh isolated replay reproduced 20/20 main DATA/RESULTS outputs and the C343 root-agent second-method output. 951 main checks, 212 frozen-input/predecessor authentication checks, and 20 separately implemented integer/source-join checks passed. These are verification counts, not independent witnesses; no new independent-agent review is claimed.

The compact kit includes C343, the C334 source audit, C338 source ladder and C340 death refinement packets, the prior C333 checkpoint/report, and C265 reference checkpoint/certificate. C343 also freezes the scientific DATA, certificates, results and next-step decisions for all nine predecessor steps. File_18 and File_09 are frozen in each packet; File_46 and the locator-selected C89 report are included in C338. Their source roles are distinguished in the synthesis.

Portable replay: run `python3 C343/evidence/check.py --out replay` from the extracted compact kit; compare DATA.json and RESULTS.json with C343/evidence/. The additional check is `python3 C343/evidence/ROOT_SECOND_METHOD.py --sources C343/sources --out secondary_replay`. The other packets have the same main replay convention and their own README.

The continuation archive contains every evidence ZIP under `published/`, extracted packets under `steps/`, and the completion and sealed-packet integrity records. Its PACKAGE_MANIFEST.json records each payload hash and size. The separate completion/integrity JSON records the recovery ZIP checksums.

Actual File_18 and File_09 bytes match their retained hashes; the C265 checkpoint is readable and its certificate hash matches the control. C-series, original unprefixed reports and Engine reports remain distinct. The earlier incomplete September17 local ZIP was not the later verified intact original. Immediate dependencies remain frozen and accessible.