# C1599 — Explain the LXX7910 through its Regular/Cumulative lower-leg difference

## Question

Can the LXX restoration7910 be related to an existing source-appointed LXX Regular interval?

## Sources

```json
[
  "Comparative_Study §§3.1–3.3",
  "File52c anchor6 convention"
]
```

## Opened utc

2026-09-29T14:55:32.681370+00:00

## Results

```json
{
  "completed_regular": [
    7916,
    6
  ],
  "completed_cumulative": [
    8446,
    536
  ],
  "coordinate_difference": 530,
  "common_span": 7910,
  "held_regular": [
    5216,
    6
  ],
  "held_cumulative": [
    5746,
    536
  ],
  "held_common_span": 5210
}
```

## Finding

The inverse Flood gap4340−3810=530 matches536−6. Thus LXX8446→536 and7916→6 both measure7910; the held-stage pair similarly preserves5210.

## Reassessment

The restoration family now has three explained members. Build the full named-node7000 packet next.

## Checks

```json
{}
```

## Closed utc

2026-09-29T14:55:32.681711+00:00

## Record provenance

Exact record hash: `a2702b81e3b940513752e4b7bd29ece2faaddaee01cdac3b2f605696ad74f3b1`

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