# C951 — First reassessment checkpoint

## Question

Which work now best advances the family-level explanation?

## Inputs

```json
{}
```

## Sources

```json
[
  "C932–C950",
  "File18 §3.1.3"
]
```

## Opened utc

2026-09-28T03:44:22.042783+00:00

## Results

```json
{
  "checkpoint": {
    "path": "model/checkpoint_951.json",
    "sha256": "7151a81a37e5ebfc0a444a62303d21b32394313ced7406e0b287e657f2987e08",
    "bytes": 545
  },
  "numbered_actions_so_far": 20
}
```

## Finding

The junction now has a smaller explanatory basis. The best next move is a different whole-source family that can test rule transfer and recoverability.

## Reassessment

Freeze the nine SP birth rows and the lifespan-cap prediction before inspecting its rowwise residuals.

## Checks

```json
{
  "twenty_actions": true,
  "no_target_hunt": true
}
```

## Closed utc

2026-09-28T03:44:22.043049+00:00

## Record provenance

Exact record hash: `86934545f73573fc1412e9ca334fd0140dfa6ae47ea6d6f80005118aaf4d5046`

Source journal: `Research_Cycles/C0932_C1131/journal.json`