# C1535 — Reconstruct the nine preNoah lifespans

## Question

Do the source-selected rows regenerate thethree cumulative prefixes?

## Sources

```json
[
  "File18.md selectedlifespan tables",
  "File51a.md roundingrule"
]
```

## Opened utc

2026-09-29T02:36:15.946084+00:00

## Results

```json
{
  "names": [
    "Adam",
    "Seth",
    "Enosh",
    "Kenan",
    "Mahalalel",
    "Jared",
    "Enoch",
    "Methuselah",
    "Lamech"
  ],
  "actual": {
    "MT": [
      930,
      912,
      905,
      910,
      895,
      962,
      365,
      969,
      777
    ],
    "LXX": [
      930,
      912,
      905,
      910,
      895,
      962,
      365,
      969,
      753
    ],
    "SP": [
      930,
      912,
      905,
      910,
      895,
      847,
      365,
      720,
      653
    ]
  },
  "rounded": {
    "MT": [
      930,
      910,
      905,
      910,
      895,
      960,
      365,
      970,
      775
    ],
    "LXX": [
      930,
      910,
      905,
      910,
      895,
      960,
      365,
      970,
      755
    ],
    "SP": [
      930,
      910,
      905,
      910,
      895,
      845,
      365,
      720,
      655
    ]
  },
  "sums": {
    "MT": 7620,
    "LXX": 7600,
    "SP": 7135
  },
  "residuals": {
    "MT": [
      0,
      -2,
      0,
      0,
      0,
      -2,
      0,
      1,
      -2
    ],
    "LXX": [
      0,
      -2,
      0,
      0,
      0,
      -2,
      0,
      1,
      2
    ],
    "SP": [
      0,
      -2,
      0,
      0,
      0,
      -2,
      0,
      0,
      2
    ]
  }
}
```

## Finding

The rounded sums are7620 forMT,7600 forLXX, and7135 forSP Creation. TheMT/LXX difference is solely the selectedLamech775/755 row.

## Reassessment

Apply the already acceptedSPFall adjustment to its sourceprefix.

## Checks

```json
{}
```

## Closed utc

2026-09-29T02:36:15.946631+00:00

## Record provenance

Exact record hash: `7c965d85c878ccf6ce5af03ea4a96128227a225d3afbf7f753a1462bd212b153`

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