# C597 — Locate ancestry and completion endpoints

## Question

Which source nodes close27 rows and28 rows?

## Inputs

```json
{
  "translated_heads": {
    "70": 3366,
    "72": 3464
  }
}
```

## Sources

```json
[
  "File68 retained grid; File69 §3.4A"
]
```

## Opened utc

2026-09-28T00:23:53.821220+00:00

## Results

```json
{
  "paths": [
    {
      "g": 70,
      "internal": [
        3366,
        2456,
        1476
      ],
      "double14": [
        3366,
        2386,
        1406
      ]
    },
    {
      "g": 72,
      "internal": [
        3464,
        2528,
        1520
      ],
      "double14": [
        3464,
        2456,
        1448
      ]
    }
  ]
}
```

## Finding

The27-row paths close at Moses-row ends1476/1520. The double-fourteen paths close one carrier later at Joshua-I ends1406/1448. Their distinct endpoints explain27 versus28 without a date-scaling repair.

## Reassessment

Analyze the adjacent26/27/28 count states as different inventory choices.

## Checks

```json
{
  "paths": true,
  "completion": true
}
```

## Closed utc

2026-09-28T00:23:53.821498+00:00

## Record provenance

Exact record hash: `42a655ab2c1fb0ee7e5d72cced40fd9b6e3331cde6da6a6989584ce9b73aa89c`

Source journal: `Research_Cycles/C0532_C0631/journal.json`