# C1253 — Separate the two source mechanisms behind the fivefold kernel

## Question

What objects do the repeatedcentury and Terah/Cainan/Sojourn parameters measure?

## Inputs

```json
{}
```

## Sources

```json
[
  "Strategy §4.1",
  "prep/regular_kernel_source_cost.json"
]
```

## Opened utc

2026-09-28T05:45:26.138985+00:00

## Results

```json
{
  "two_mechanisms": {
    "path": "model/regular_kernel_two_mechanisms.json",
    "sha256": "d8a2ee103b3ab70d54fd26f14b74d158f1f079f34ec331d06e82575119daa926",
    "bytes": 2655
  }
}
```

## Finding

The repeatedcentury changes measure differences between source rows; Terah,Cainan andSojourn measure admitted placementchoices. The Strategy’s compactformula relates these distinct mechanisms and must retain both source burdens.

## Reassessment

Reconstruct the entire matchedrow displacementstaircase as the first mechanism’s output.

## Checks

```json
{
  "four_primitives": true,
  "two_objects": true
}
```

## Closed utc

2026-09-28T05:45:26.139969+00:00

## Record provenance

Exact record hash: `60273029fa4b5b1de7fbbe54cccb7040aeed0e8e72996771ffeed43c33627fb2`

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