# C631 — Close the100-step explanatory cycle

## Question

Has the authorized cycle produced a coherent, reviewable explanation with evidence and a precise continuation?

## Inputs

```json
{
  "range": [
    532,
    631
  ],
  "next_proposed": 632,
  "primary": "latest File52c",
  "deferred": "inverse of the inverse"
}
```

## Sources

```json
[
  "C532–C630 journal; final synthesis and reviews; verification gate"
]
```

## Opened utc

2026-09-28T00:48:03.196575+00:00

## Results

```json
{
  "completed_cycle": [
    532,
    631
  ],
  "bounded_steps": 100,
  "deliverable_sha256": {
    "490d_Chronological_Families_Integrated_Draft_20260928.md": "3efec12f1991ff27df1b76899d7c4e3303122462f47a49007509324f2dff9597",
    "490d_Chronological_Families_Reading_Guide_20260928.md": "c7e2a7506ef5507ce4f4d14e95b582ce063aacafd8febae386fee7003787cda7",
    "490d_Research_Checkpoint_After_C631_20260928.md": "08f2ebf3612acdfd2315ee8376642f442817755917b9ae219169ab60d4fb2d3b",
    "Actual_Rounded_Interface.svg": "86b6671a4c1a025000ca39443759f41384aeda40da7d05e13d07a7f0b5271043",
    "Actual_Rounded_Interface.png": "859a68c263d129fd372d2c072151b9cb2c791acdd13414514eeac15b157e683d"
  },
  "review_notes": [
    "REVIEW_C532_C541.md",
    "REVIEW_C542_C551.md",
    "REVIEW_C552_C563.md",
    "REVIEW_C564_C571.md",
    "REVIEW_C572_C586.md",
    "REVIEW_C587_C591.md",
    "REVIEW_C592_C605.md",
    "REVIEW_C606_C612.md",
    "REVIEW_C613_C616.md",
    "REVIEW_DRAFT_C618.md",
    "REVIEW_FINAL_SYNTHESIS.md"
  ],
  "principal_advance": "A compact source-expression grammar with exact Actual/Rounded, gain-allocation, Covenant/clutch and indexed Enoch interfaces",
  "candidate_grammar_status": "whole families reconstructed; no global-minimality or historical-causation claim",
  "next_step": 632,
  "next_executed": false,
  "final_gate": "Run read-only100-record verification after this record closes; archive its result as VERIFY.json"
}
```

## Finding

The100-step cycle is complete. The result is a new integrated explanation, short reading guide, exact diagram, source/model registers, continuation checkpoint and replayable evidence. Whole-family constructions now connect through typed relations while the original source choices remain visible.

## Reassessment

Proposed C632: freeze and reconstruct the complete File70 §6 calendar-half family using the existing grammar; second decimal inversion remains deferred.

## Checks

```json
{
  "all_prior_steps": true,
  "gate_passed": true,
  "deliverables_present": true,
  "reviews_present": true
}
```

## Closed utc

2026-09-28T00:48:03.203027+00:00

## Record provenance

Exact record hash: `8da995fbc41dba4a3b78b59a6a6a316b712980b5052087bc963cd75e15db6351`

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