# C1263 — Connect baseline row differences to finite variant placement

## Question

When does the samevariant choice preserve a comparison between traditions?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1256",
  "C1262",
  "File18 nestedvariant supports"
]
```

## Opened utc

2026-09-28T05:47:49.489753+00:00

## Results

```json
{
  "variant_connection": {
    "path": "model/regular_kernel_variant_covariance.json",
    "sha256": "d6fd98fa2cfaf15d4c700f7b320f6dd86b244b9edfd8666eef4ec807c6cec4f5",
    "bytes": 918
  }
}
```

## Finding

Matching variantchoices cancel from a matched comparison; different choices change it by their declared offsetdifference. This connects thetwo mechanisms without treatingall switches as whole-genealogytranslations.

## Reassessment

Write thefivefoldkernel’s positiveexplanation and remainingcalibration burden.

## Checks

```json
{
  "eightcases": true,
  "baseline_preserved": true
}
```

## Closed utc

2026-09-28T05:47:49.490259+00:00

## Record provenance

Exact record hash: `ae5d989ee653ec32b5b473aaafa2b9a6aae42b05fba98a624e9e97922dde493f`

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