{"id": "c751", "title": "C751 — First twenty-step explanatory checkpoint", "filename": "C751.md", "role": "Research action", "step": 751, "sha256": "e2714d7a6be14e87ea6006c65c96192b676b944874ac533824e7038bf8fec77f", "bytes": 1173, "origins": ["C480–C1634/Research_Cycles/C0732_C0831/journal.json#C751"], "download": "/sources/e2714d7a6be14e87ea6006c65c96192b676b944874ac533824e7038bf8fec77f.md", "format": "md", "derived": true, "tags": ["Regular", "Rounded"], "excerpt": "What generalizes, and what frame must remain explicit?", "content": "# C751 — First twenty-step explanatory checkpoint\n\n## Question\n\nWhat generalizes, and what frame must remain explicit?\n\n## Inputs\n\n```json\n{\n  \"regular_frame\": \"common full430 comparison\",\n  \"native_Cainan\": {\n    \"MT\": \"OFF\",\n    \"LXX\": \"ON\",\n    \"SP\": \"OFF\"\n  }\n}\n```\n\n## Sources\n\n```json\n[\n  \"C733–750\"\n]\n```\n\n## Opened utc\n\n2026-09-28T01:53:05.590400+00:00\n\n## Results\n\n```json\n{\n  \"checkpoint\": {\n    \"path\": \"deliverables/490d_Chronological_Families_Checkpoint_C751.md\",\n    \"sha256\": \"6865f3a55c73e0a3b0d2d6964597a26f6c4cbe5a46484ffd85a542ca18784464\",\n    \"bytes\": 1313\n  },\n  \"SP_frame_check\": {\n    \"full430\": 8982,\n    \"native215\": 9197\n  }\n}\n```\n\n## Finding\n\nThe comparison now has an explicit frame and a whole-field explanation. Proceed with the residual operator rather than surveying more endpoints.\n\n## Reassessment\n\nDerive the complete finite rounding defect law.\n\n## Checks\n\n```json\n{\n  \"SP_frame\": true,\n  \"twenty_steps\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T01:53:05.590673+00:00\n\n## Record provenance\n\nExact record hash: `5422c036ee98a0217ffe567508da299e8cd2ce859c0f3c36a4c6a0cfe7769953`\n\nSource journal: `Research_Cycles/C0732_C0831/journal.json`", "journalDownload": "/sources/8ea2b882289fbcea5cf11177923617f0c1d1ad7e6eaa3bffb174c6f89699d97d.json", "evidenceLinks": [{"id": "d-6865f3a55c73e0a3", "title": "deliverables/490d_Chronological_Families_Checkpoint_C751.md"}]}