# C592 — Test center transport without role changes

## Question

What happens if ordinary and generation centers use each other’s endpoint roles?

## Inputs

```json
{
  "g": [
    70,
    72
  ],
  "T": 110
}
```

## Sources

```json
[
  "File69 center definitions; C590–C591"
]
```

## Opened utc

2026-09-28T00:22:39.080575+00:00

## Results

```json
{
  "wrong_role_residuals": [
    {
      "g": 70,
      "ordinary_crossed_residual": -55,
      "generation_same_rail_residual": 55
    },
    {
      "g": 72,
      "ordinary_crossed_residual": -55,
      "generation_same_rail_residual": 55
    }
  ]
}
```

## Finding

Wrong-role transports miss by−55 or+55 in both carriers. This confirms that the centers are exact conditional theorems with different role selections, rather than an unrestricted center-preserving global transformation.

## Reassessment

Reconstruct the complete four-rail generation grid from civil coordinates.

## Checks

```json
{
  "failures": true
}
```

## Closed utc

2026-09-28T00:22:39.081375+00:00

## Record provenance

Exact record hash: `b1cc13dad89aea1041ece1c539a06e0f0478d8996209ea75db4a841815b810a1`

Source journal: `Research_Cycles/C0532_C0631/journal.json`