# C1167 — Audit the source triangle’s dependent agreements

## Question

Which parts of the three-route agreement explain source structure rather than restate subtraction?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1164–C1166",
  "Strategy §5D"
]
```

## Opened utc

2026-09-28T05:10:01.557320+00:00

## Results

```json
{
  "triangle_dependency_audit": {
    "path": "model/postflood_triangle_dependency_audit.json",
    "sha256": "317aab7f9adab28520c4e945715e4382cab042135c1e1e0987ba8f4c71b20c44",
    "bytes": 876
  }
}
```

## Finding

The triangle closure itself is forced subtraction. Its useful content is the repeated source-supported coefficient pattern and the actualSP intermediate rows; these organize the family without multiplying its evidence.

## Reassessment

Restore nativeCainan through its complete source biography and determine which information the repeated330 block shares.

## Checks

```json
{
  "forced_vs_constraints": true,
  "cost_retained": true
}
```

## Closed utc

2026-09-28T05:10:01.557662+00:00

## Record provenance

Exact record hash: `44fc91edfc4435b52781950d3eadd0012142a9004b22b030f262c6b67d375392`

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