# C1487 — Derive the shared stage translation

## Question

What displacement does prepending the1400-year Nativity leg produce?

## Sources

```json
[
  "Reader_before.md six spines"
]
```

## Opened utc

2026-09-29T02:26:48.326913+00:00

## Results

```json
{
  "original_leg": 1400,
  "inverse_leg": 4100,
  "displacement": 2700,
  "LXX": [
    6,
    4106,
    7916,
    13136
  ],
  "SP": [
    6,
    4106,
    5436,
    14116
  ]
}
```

## Finding

The earlier calculation gives a universal+2700 for the existing suffix:4100−1400. This also transports interior nodes.

## Reassessment

Test the whole7700 edge with both endpoints moved.

## Checks

```json
{}
```

## Closed utc

2026-09-29T02:26:48.327026+00:00

## Record provenance

Exact record hash: `adf56cff3b3ce5ff65b0814141d42bdbd681d32fda7fe4d9982d0cd4617b931f`

Source journal: `Research_Cycles/C1483_C1582/c1483_c1582/journal.json`