# 490d C344–C353 reading index and restart guide

**All ten steps are complete. C354 has not been executed.** 24 September 2026.

Read the C353 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

C344–C353 complete. Primary598→600 has two source repairs: preserving2K gives458+492+108; preserving460/490 gives1060. The cumulative counterpart preserves1058 as458+600 at i2…5, and both primary sides can do so at i3/i5 with all2K/17K outer endpoints fixed. Noah-held E sends the original primary598 interval to an actual SP/MT Shem650 pair. The supported endpoint moves form bounded partial relations; whole-biography and single-physical-time dilation claims fail their stated tests. Both598 inputs select22 primary, but actual600 outcomes leave9 admitted primary controls across allfour choices. No new coupled source prescription.

## Read first

- [490d_C353_Source_600_Repairs_and_Partial_Operator_Synthesis_20260924.md](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C353_Source_600_Repairs_and_Partial_Operator_Synthesis_20260924.md)
- [490d_Mirror_Checkpoint_After_C353_20260924.md](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C353_20260924.md)

## Ten-step locator

| Step | Report | Checkpoint | Evidence |
|---|---|---|---|
|C344 — Source-qualified 598 to600 held-endpoint realizations|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C344_Source_Qualified_598_to_600_Realizations_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C344_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C344_Evidence_20260924.zip)|
|C345 — All admitted600 repairs and the529 partition tradeoff|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C345_All_600_Repairs_and_529_Partition_Tradeoff_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C345_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C345_Evidence_20260924.zip)|
|C346 — Two sourced images of the598 interval|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C346_Two_Source_Images_of_598_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C346_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C346_Evidence_20260924.zip)|
|C347 — Gap conversion versus coherent Noah biography transport|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C347_Gap_Conversion_vs_Noah_Biography_Transport_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C347_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C347_Evidence_20260924.zip)|
|C348 — Exact phases of the598 to600 source repairs|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C348_Exact_Phases_of_598_to_600_Repairs_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C348_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C348_Evidence_20260924.zip)|
|C349 — Finite partial endpoint relations for E and300/299|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C349_Finite_Partial_Source_Endpoint_Relations_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C349_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C349_Evidence_20260924.zip)|
|C350 — Composition order of the fixed-endpoint expressions|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C350_Fixed_Endpoint_Composition_Order_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C350_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C350_Evidence_20260924.zip)|
|C351 — Cumulative counterpart of the600 endpoint repairs|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C351_Cumulative_Counterpart_of_600_Repairs_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C351_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C351_Evidence_20260924.zip)|
|C352 — Paired598 inputs versus600 output selection|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C352_Paired_598_Inputs_vs_600_Output_Selection_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C352_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C352_Evidence_20260924.zip)|
|C353 — Source600 repairs and partial operator structure synthesis|[Report](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C353_Source_600_Repairs_and_Partial_Operator_Synthesis_20260924.md)|[Checkpoint](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_Mirror_Checkpoint_After_C353_20260924.md)|[Evidence ZIP](sandbox:/workspace/scratch/2cd312e78692/deliverables/490d_C353_Evidence_20260924.zip)|

## Restart checkpoint

Latest completed C353; C354 unexecuted and outside the completed authorization. Read C353 synthesis/checkpoint first; compact C353 kit is the active packet and older archives are selective references. Preserve C343 primary1058→1150→1250 ladder and its companion1149/502-mode1152 controls. Preserve C287 full SP i2…5 and C319 i3…7 control slice. The retained MT-companion gap is599, so300/299 gives601+1/299; this finding is limited to those endpoint comparisons. Cumulative458 is a cross-index/Cainan-state leg, never a changed460 lifespan or cumulative Gear. Source gap conversion, Gear translation, center/phase comparison and physical-time affine map stay distinct. K=529,E=25/23,P=70/69;300/299 is the File02 gap ratio and not ResidueProtocol. Global paired MirrorJanuaryAD1; local junctionJanuaryAD2; no civil yearzero. Regular GearsNoah/Shem/Flood only; SP person companion local; SP primary death retains inclusive/harmonic qualification. Capture now; canonize later. No new source node, phase, fitted anchor, global axis, primer, canonical or graph edit. LXX8464 supplement remains awareness only; AD3746/2300 superseded. Earlier incompleteSeptember17 ZIP differs from the later verified intact original. C-series, original unprefixed reports and Engine reports remain distinct.

## Proposed next step — unexecuted

Audit the same598→600 comparison on existing adjacent-Gear Shem birth/death pairs in the frozen regular Noah/Shem/Flood register, keeping contexts and matched SP rails explicit. Determine whether any pair connects to the retained529/E endpoint relations; add no source endpoints, phases, anchors or broader Gear scope.

The current authorization ends at C353. A new instruction is required before C354.

## 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 C353 root-agent second-method output. 621 main checks, 205 frozen-input/predecessor authentication checks, and 88 separately implemented integer, affine-coefficient and source-join checks passed. These are verification counts, not independent witnesses; no new independent-agent review is claimed.

The compact kit includes C353, the C344 gap-source audit, C349 finite endpoint relation table and C351 cumulative counterpart packets, the prior C343 checkpoint/report, and C265 reference checkpoint/certificate. C353 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_02 is included in C344 and C353. Source permission, endpoint selection, phase and biography distinctions remain explicit.

Portable replay: run `python3 C353/evidence/check.py --out replay` from the extracted compact kit; compare DATA.json and RESULTS.json with C353/evidence/. The additional check is `python3 C353/evidence/ROOT_SECOND_METHOD.py --sources C353/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; File_02 matches its C344 frozen source. 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.