# C747 — Test the information supplied by intermediate boundaries

## Question

Could the same aggregate lifespan difference conceal a different source-row order?

## Inputs

```json
{
  "source_deltas": [
    27,
    100,
    100,
    100,
    100,
    60,
    60
  ],
  "diagnostic": "swap firsttwo row differences; no newsource state"
}
```

## Sources

```json
[
  "C742; Research Strategy §5B"
]
```

## Opened utc

2026-09-28T01:46:59.830427+00:00

## Results

```json
{
  "source_profile": [
    547,
    520,
    420,
    320,
    220,
    120,
    60,
    0
  ],
  "diagnostic_profile": [
    547,
    447,
    420,
    320,
    220,
    120,
    60,
    0
  ],
  "profile_difference": [
    0,
    -73,
    0,
    0,
    0,
    0,
    0,
    0
  ]
}
```

## Finding

Swapping just two row contributions preserves the547total and terminal but changes theEber comparison by73. The supplied intermediate boundary therefore contains information that theCreation or outer total cannot recover. This is a diagnostic of explanatory sufficiency, not an admitted variant.

## Reassessment

State the exact reconstruction relation between local row changes and thewholeboundaryprofile.

## Checks

```json
{
  "same_total": true,
  "different_interior": true,
  "localized_difference": true
}
```

## Closed utc

2026-09-28T01:46:59.830629+00:00

## Record provenance

Exact record hash: `24123078e48d9361a6d64ccf67e1e78c08691d7997431651d9d78d1f9a8a76cc`

Source journal: `Research_Cycles/C0732_C0831/journal.json`