# C1089 — Manuscript: The structural role of 529

## Question

Does this section accurately connect its complete source family to the shared explanation?

## Inputs

```json
{
  "draft_sha256": "bd93d2b94670743de50bbb02707612fb204626861ade8309c51d4fc8ca5274f8",
  "module_index": 5
}
```

## Sources

```json
[
  "C1071",
  "prep/manuscript_keys.json"
]
```

## Opened utc

2026-09-28T04:15:22.747608+00:00

## Results

```json
{
  "section": {
    "path": "deliverables/sections/18_keys_6.md",
    "sha256": "96e940ce254216b5b941809ef826e9c9b5e9f91375e1f3414d08824c2b00d9d0",
    "bytes": 1846
  },
  "body_words": 203,
  "source_references": 3
}
```

## Finding

The529 section distinguishes duration closure from endpoint realization and preserves the source’s Rounded epoch-crossing convention.

## Reassessment

Reassess the next explanatory section against its source roles and the sealed calculations.

## Checks

```json
{
  "small_ladder": true,
  "Rounded_crossing": true,
  "placement_limit": true,
  "no_universal_map": true
}
```

## Closed utc

2026-09-28T04:15:22.748007+00:00

## Record provenance

Exact record hash: `438ce80fa13d7ecb37cd8ae8ec3987e52fe9a080862552301858fe1863d8ad56`

Source journal: `Research_Cycles/C0932_C1131/journal.json`