{"id": "c629", "title": "C629 — Write the continuation checkpoint", "filename": "C629.md", "role": "Research action", "step": 629, "sha256": "bc853b5896f569fbad536a32f6658f2798f5f59b4383403e48761f998ec29d2e", "bytes": 1457, "origins": ["C480–C1634/Research_Cycles/C0532_C0631/journal.json#C629"], "download": "/sources/bc853b5896f569fbad536a32f6658f2798f5f59b4383403e48761f998ec29d2e.md", "format": "md", "derived": true, "tags": [], "excerpt": "What must the next session retain to continue the Strategy without repeating completed work?", "content": "# C629 — Write the continuation checkpoint\n\n## Question\n\nWhat must the next session retain to continue the Strategy without repeating completed work?\n\n## Inputs\n\n```json\n{\n  \"cycle\": [\n    532,\n    631\n  ],\n  \"substantive_record_through\": 628,\n  \"proposed_next\": 632\n}\n```\n\n## Sources\n\n```json\n[\n  \"Completed journal; revised synthesis; frozen controls; NEXT_C632_PROPOSED.md\"\n]\n```\n\n## Opened utc\n\n2026-09-28T00:47:11.405724+00:00\n\n## Results\n\n```json\n{\n  \"checkpoint\": {\n    \"path\": \"deliverables/490d_Research_Checkpoint_After_C631_20260928.md\",\n    \"sha256\": \"08f2ebf3612acdfd2315ee8376642f442817755917b9ae219169ab60d4fb2d3b\",\n    \"bytes\": 6393\n  },\n  \"final_draft_sha256\": \"3efec12f1991ff27df1b76899d7c4e3303122462f47a49007509324f2dff9597\",\n  \"next_step\": 632,\n  \"next_step_executed\": false\n}\n```\n\n## Finding\n\nThe checkpoint preserves the completed constructions, source costs, corrected terminology, exact state controls and next whole-family proposal. It distinguishes substantive completion from the final replay gate that follows.\n\n## Reassessment\n\nRun the pre-closure replay against all completed records and current sources.\n\n## Checks\n\n```json\n{\n  \"primary_identity\": true,\n  \"cycle_length\": true,\n  \"bridge_unit\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T00:47:11.406289+00:00\n\n## Record provenance\n\nExact record hash: `900d6b04ba47e4b4839cf3748da00a40f739eb02b41bb62c974f6f1401188d17`\n\nSource journal: `Research_Cycles/C0532_C0631/journal.json`", "journalDownload": "/sources/7a2e1117efc741218b68e2db8bb20eadd33cab34e00384e9b903708031da1d2d.json", "evidenceLinks": [{"id": "d-08f2ebf3612acdfd", "title": "deliverables/490d_Research_Checkpoint_After_C631_20260928.md"}]}