# C1366 — Write the anchored-Key domain supplement

## Question

When do exact affine comparisons preserve an integer-year stage?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1299",
  "C1307–C1308",
  "Strategy.md"
]
```

## Opened utc

2026-09-28T06:36:41.880963+00:00

## Results

```json
{
  "artifact": {
    "path": "draft/technical_05_Keys.md",
    "sha256": "74ecf4c82ef043e488dd8ac7e706c95b16d17294605b5ca7dce0de53009d6b67",
    "bytes": 1890
  },
  "words": 255
}
```

## Finding

The Key supplement distinguishes exact affine composition, common calibration and integer-stage admissibility without extending any chronological route.

## Reassessment

Adopt the complete Covenant technical supplement.

## Checks

```json
{
  "nonempty": true,
  "obstruction": true
}
```

## Closed utc

2026-09-28T06:36:41.881575+00:00

## Record provenance

Exact record hash: `66aded1422814ec1558b198b380957c85d750673724b23ab0fa7daa2552f8cd2`

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