# C996 — Complete retained-part field reconstruction

## Question

Do the two measurements recover every supplied component pair?

## Inputs

```json
{
  "fields": [
    [
      690,
      700,
      750
    ],
    [
      720,
      730,
      780
    ],
    [
      750,
      760,
      810
    ],
    [
      12600,
      12740,
      13440
    ]
  ]
}
```

## Sources

```json
[
  "C995",
  "SupplementA",
  "File52c"
]
```

## Opened utc

2026-09-28T03:54:32.570988+00:00

## Results

```json
{
  "complete_field": {
    "path": "model/retained_part_complete_field.json",
    "sha256": "191c8be002ec5b6904324b1a6bd626f3018146fcd29bb8808ee47ae74366c592",
    "bytes": 523
  },
  "recovered": [
    [
      690,
      0
    ],
    [
      690,
      30
    ],
    [
      690,
      60
    ],
    [
      9660,
      2940
    ]
  ]
}
```

## Finding

The same two-measurement inverse recovers690 with zero, one or two30 flanks, and the9660|2940 macro split. The third total is a dependent consistency check.

## Reassessment

Determine what this numerical recovery leaves to the sources.

## Checks

```json
{
  "all_residuals_zero": true,
  "all_parts": true
}
```

## Closed utc

2026-09-28T03:54:32.573634+00:00

## Record provenance

Exact record hash: `97a316d99fd4c0b7ebb4246f2255532ccf5b5de85b48527b72c9bed63e92ac15`

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