# C1597 — Join the Babylonian70 and Egypt430 measures in the same source gap

## Question

How does the LXX–SP separation combine the independently derived910 and2100 differences?

## Sources

```json
[
  "LXX_910_source.json",
  "SP_120_source.json",
  "lower_decimal_mechanism.json"
]
```

## Opened utc

2026-09-29T14:55:32.675491+00:00

## Results

```json
{
  "ordered_indices": [
    "LXX113",
    "MT100",
    "SP70",
    "restoration0"
  ],
  "adjacent_units70": [
    13,
    30,
    70
  ],
  "LXX_SP_gap": 3010,
  "LXX_SP_factorizations": [
    "43×70",
    "7×430"
  ],
  "source_LXX_SP_gap": 1030,
  "SP_inverse_contraction": 1980
}
```

## Finding

The LXX–SP inverse Flood gap is3010=910+2100=43×70=7×430. It comes from their1030 source gap plus the SP1980 contraction; it is one interval with two descriptions.

## Reassessment

Test the already-appointed Exodus target1446 on the LXX row rather than looking for a new target.

## Checks

```json
{}
```

## Closed utc

2026-09-29T14:55:32.676127+00:00

## Record provenance

Exact record hash: `3c61e692288f86835c853f79481685c25650b3097bb831a267fd79b6a3303605`

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