# C1308 — Register anchored composition with its integer-stage restriction

## Question

Why can exactaffineformulas compose whileanintegervaluedchronologyroutefails?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1307",
  "inherited/model/fixed_pivot_key_domains.json",
  "inherited/model/key_constraint_inputs.json"
]
```

## Opened utc

2026-09-28T06:12:23.521374+00:00

## Results

```json
{
  "affine_grid_relation": {
    "path": "model/relation_affine_grid_domains.json",
    "sha256": "99bb3e4f0350677d6ba82dc8f15f381d7c78ebc4822e14412e2ce912230bde8b",
    "bytes": 756
  }
}
```

## Finding

Theanchoredmaps composeexactly over rationalcoordinates, butthefixed14006→4836 J-to-P routehas nointegerstage-domain: itssecondspan remains2mod3. Thisexplains whygriddomain belongsin theoperationrecord.

## Reassessment

Register thecriterion forreflectionto pass througha sourcegrouping.

## Checks

```json
{
  "gap9170": true,
  "mod3": true,
  "inherited_agrees": true
}
```

## Closed utc

2026-09-28T06:12:23.521844+00:00

## Record provenance

Exact record hash: `ba586c3e3b2e32568220f33d02cf17816e5c5b3659be20eb4d64229a8c63874b`

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