# C1145 — Test the information carried by loss placement

## Question

Can an unchanged total350 produce a different complete lifespan field?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1144",
  "Strategy §6"
]
```

## Opened utc

2026-09-28T05:01:21.560110+00:00

## Results

```json
{
  "placement_counterexample": {
    "path": "model/SP_loss_placement_counterexample.json",
    "sha256": "761b4d186e53aa9ba06e42fd3cd7c00d5e751ac739537c9ce31c982bbaa7ac73",
    "bytes": 940
  },
  "lifespan_difference": [
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    20,
    0
  ]
}
```

## Finding

A diagnostic exchange of100 and120 preserves the outer350 loss but changes Methuselah’s capped life by20. The source locations carry explanatory information that an endpoint total discards.

## Reassessment

Determine which baseline lifespan relations the new threshold explanation still leaves unresolved.

## Checks

```json
{
  "same_total": true,
  "positive_ages": true,
  "field_changes": true
}
```

## Closed utc

2026-09-28T05:01:21.560504+00:00

## Record provenance

Exact record hash: `20e5bbe87d8b2ec5c9b0f6dd1eab3f2a9d077d7ae1836e35f804a6c1db0d19de`

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