# C1161 — Parametrize the early six-row source block

## Question

How much of the Arphaxad/Shelah field follows from equal remainders and shared changes?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1160",
  "C1154"
]
```

## Opened utc

2026-09-28T05:08:24.360073+00:00

## Results

```json
{
  "early_block_model": {
    "path": "model/postflood_early_block_rank.json",
    "sha256": "9beab9334ccc6dfe598b19d29df22d6e27f16d09864886912b193b39a474fec6",
    "bytes": 1173
  },
  "rank": 5,
  "outputs": [
    35,
    438,
    30,
    433,
    135,
    438,
    130,
    433,
    135,
    465,
    130,
    460
  ]
}
```

## Finding

Five coordinates describe the twelve early b/L values once the equal-remainder and shared-change relations are held. The source35/30 difference and common403 remainder have distinct roles from the100 and27 transformation amplitudes.

## Reassessment

Compare the late Peleg/Reu/Serug block, where the conserved quantity changes.

## Checks

```json
{
  "rank5": true,
  "source_block": true
}
```

## Closed utc

2026-09-28T05:08:24.361786+00:00

## Record provenance

Exact record hash: `cfcac401033a4768efd885e5ededf63b4d991a65dbbce7a8c2b9b798216efb72`

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