# C677 — Generate the120 field from two40 brackets

## Question

Does the supplied80 translation determine the entire enclosing field?

## Inputs

```json
{
  "lower_bracket": [
    2891,
    2851
  ],
  "translation": 80
}
```

## Sources

```json
[
  "Supplement A §4.4"
]
```

## Opened utc

2026-09-28T01:11:27.519699+00:00

## Results

```json
{
  "upper": [
    2971,
    2931
  ],
  "ordered_field": [
    2971,
    2931,
    2891,
    2851
  ],
  "gaps": [
    40,
    40,
    40
  ],
  "center": 2911,
  "center_shift": 40
}
```

## Finding

Translating the40 bracket by80 generates three consecutive40 intervals across a120 envelope. Its center2911 is40 above the lower bracket’s center2871. The repeated40s are consequences of the supplied width and translation.

## Reassessment

Insert the separately supplied70-wide Enoch body at this common center.

## Checks

```json
{
  "upper": true,
  "field_gaps": true,
  "center": true
}
```

## Closed utc

2026-09-28T01:11:27.520076+00:00

## Record provenance

Exact record hash: `ef0b559f087799e8c71d4e2f7907fc4954945b043c34aa5aa477203bbbf23941`

Source journal: `Research_Cycles/C0632_C0731/journal.json`