# C1503 — Bind both LXX Shem endpoints

## Question

Does the source expressly supply the matched 3336–2736 biography?

## Sources

```json
[
  "File18.md §4A.3",
  "agents/source_review.md"
]
```

## Opened utc

2026-09-29T02:29:30.573321+00:00

## Results

```json
{
  "source": "File18 §4A.3 endpoint register",
  "matched": [
    3336,
    2736
  ],
  "alternate": [
    3338,
    2738
  ],
  "lifespans": [
    600,
    600
  ],
  "cross_Gear": 598
}
```

## Finding

The source supplies both 600-year biographies and distinguishes the 598-year cross-Gear span.

## Reassessment

Reconstruct the corresponding SP life interval using its unchanged 600 years.

## Checks

```json
{}
```

## Closed utc

2026-09-29T02:29:30.573530+00:00

## Record provenance

Exact record hash: `3dc5c2b2da230b03a28975392f4d11e153132c4933b676fca94250208dfe773f`

Source journal: `Research_Cycles/C1483_C1582/c1483_c1582/journal.json`