# C1262 — Integrate the SP local age mechanism with the regular kernel

## Question

How does the sourceSP300 gap arise while retaining its distinctcount convention?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1142–C1144",
  "C1254",
  "Strategy §4.1"
]
```

## Opened utc

2026-09-28T05:47:47.526801+00:00

## Results

```json
{
  "SP_mechanism": {
    "path": "model/regular_kernel_SP_local_mechanism.json",
    "sha256": "530d7955a762a6f1e7c1f80d69750855d16b25251c3e41d0b2b9ef14eec97fcb",
    "bytes": 453
  },
  "creation_difference": 300
}
```

## Finding

SPCreation’s300 difference comes from post-Flood650 minus the located350 age reduction. Lamech’s nominal129 difference becomes130 completedunits through the53rd-year convention, using the one-year correction exactly once.

## Reassessment

Show howmatchingvariantchoices preserve the source-generatedcomparison while differentchoiceschange it.

## Checks

```json
{
  "losses": true,
  "sum350": true,
  "creation300": true,
  "countonce": true
}
```

## Closed utc

2026-09-28T05:47:47.527476+00:00

## Record provenance

Exact record hash: `6f8b1c28a202707339472a403c196ba4b9cf4cbd26e06075b7644d724797a790`

Source journal: `Research_Cycles/C1132_C1431_Recovered/journal.json`