# C1623 — Freeze the demonstrated range of the explanation

## Question

What must the synthesis retain to avoid turning local agreements into an unsupported universal map?

## Sources

```json
[
  "translation_cut_domain.json",
  "packet_head_boundary.json",
  "selected_700_grid.json",
  "Jubilee_target_dependence.json"
]
```

## Opened utc

2026-09-29T15:04:17.543013+00:00

## Results

```json
{
  "tests": [
    {
      "proposal": "all inverse partitions translate MT→LXX by910",
      "result": "fails",
      "witness": "whole Conquest–Shem gives1900; Flood-cut gives910"
    },
    {
      "proposal": "the shared7000 packet extends to both primary cumulative heads",
      "result": "fails",
      "witness": "upper inverse difference−2000; head difference−1090"
    },
    {
      "proposal": "all completed cumulative Floods lie on the700 grid",
      "result": "fails",
      "witness": "LXX7910 has remainder210; all three lie on70 grid"
    },
    {
      "proposal": "all completed Regular Floods meet both Jubilee targets",
      "result": "fails",
      "witness": "SP alone has zero490 remainder in the fixed native family"
    },
    {
      "proposal": "RoundedAD2166 widths can use civilB+A−1 unchanged",
      "result": "different measure",
      "witness": "Rounded usesB+A−2; civil labels would addone"
    }
  ],
  "accepted_scope": "named source-controlled prefixes, packets and incidence relations",
  "deferred": [
    "deeper mirrors",
    "second decimal inversion"
  ],
  "interpretation": "These limits delimit successful constructions; no additional boundary scan is proposed."
}
```

## Finding

The successful packets have explicit ranges. The known cut, head, grid and counting distinctions are retained in one compact scope ledger rather than reopened as further searches.

## Reassessment

Choose the small set of reader-facing additions that best advance the Strategy.

## Checks

```json
{}
```

## Closed utc

2026-09-29T15:04:17.543459+00:00

## Record provenance

Exact record hash: `bfb3d68494b004e2c6e49957af2f523c6971f5d95e18f6cef321063c36db7b3c`

Source journal: `Research_Cycles/C1585_C1634/journal.json`