# C1163 — Identify a source-realized two-stage row factorization

## Question

Does the late conserved-remainder operation pass through the suppliedSP biography?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1162",
  "File18 §§2.2,3.2.1,4.2"
]
```

## Opened utc

2026-09-28T05:08:28.272856+00:00

## Results

```json
{
  "source_triangles": {
    "path": "model/postflood_late_source_triangles.json",
    "sha256": "504ebfd746ae2abdfad8dfce687da3726454b0699c71b81682eaf63d7c32e95e",
    "bytes": 1230
  }
}
```

## Finding

For all three late rows, the intermediate R100 result is the suppliedSP row, and the following A100 result is the suppliedLXX row. This gives a concrete connection between three source families while leaving historical direction open.

## Reassessment

Extend the source-realized factorization to all nine common post-Flood rows.

## Checks

```json
{
  "SP_intermediates": true,
  "LXX_completions": true
}
```

## Closed utc

2026-09-28T05:08:28.273393+00:00

## Record provenance

Exact record hash: `a53946ac8fb956cb659c1f2bdc3c11d78afcfb6ccf9ba4d57fb644c885e384b6`

Source journal: `Research_Cycles/C1132_C1431_Recovered/journal.json`