{"id": "c750", "title": "C750 — Reconstruct every MT rounded lifespan", "filename": "C750.md", "role": "Research action", "step": 750, "sha256": "f674a750e25676c4e6f80ec29fdac8ee41f578510b2386e1859b4bec9170cbd3", "bytes": 1408, "origins": ["C480–C1634/Research_Cycles/C0732_C0831/journal.json#C750"], "download": "/sources/f674a750e25676c4e6f80ec29fdac8ee41f578510b2386e1859b4bec9170cbd3.md", "format": "md", "derived": true, "tags": ["Regular", "Cumulative", "Rounded"], "excerpt": "Where do the two lifespan operations diverge?", "content": "# C750 — Reconstruct every MT rounded lifespan\n\n## Question\n\nWhere do the two lifespan operations diverge?\n\n## Inputs\n\n```json\n{}\n```\n\n## Sources\n\n```json\n[\n  \"File51a §3.4 and §16.1 literal tables\"\n]\n```\n\n## Opened utc\n\n2026-09-28T01:52:42.609294+00:00\n\n## Results\n\n```json\n{\n  \"parts\": [\n    930,\n    910,\n    905,\n    910,\n    895,\n    960,\n    365,\n    965,\n    775,\n    950,\n    600,\n    440,\n    435,\n    465,\n    240,\n    235,\n    230,\n    150,\n    205,\n    175,\n    180,\n    145\n  ],\n  \"whole\": [\n    930,\n    910,\n    905,\n    910,\n    895,\n    960,\n    365,\n    970,\n    775,\n    950,\n    600,\n    440,\n    435,\n    465,\n    240,\n    240,\n    230,\n    150,\n    205,\n    175,\n    180,\n    145,\n    135,\n    135,\n    135,\n    120\n  ],\n  \"nonzero_defects\": {\n    \"Methuselah\": -5,\n    \"Reu\": -5\n  }\n}\n```\n\n## Finding\n\nMethuselah and Reu both give parts-minus-total = −5. The source tables agree; the unrestricted uniqueness sentence about Methuselah needs qualification.\n\n## Reassessment\n\nRecord the first 20-step checkpoint, including the common regular comparison frame.\n\n## Checks\n\n```json\n{\n  \"regular_literal\": true,\n  \"cumulative_literal\": true,\n  \"two_cases\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T01:52:42.609797+00:00\n\n## Record provenance\n\nExact record hash: `8bba33144aa8c8d8485ca8c3eeb7162b3d9b29d65e9f8250da436a6a67be4c40`\n\nSource journal: `Research_Cycles/C0732_C0831/journal.json`", "journalDownload": "/sources/8ea2b882289fbcea5cf11177923617f0c1d1ad7e6eaa3bffb174c6f89699d97d.json", "evidenceLinks": [{"id": "d-d8aa38afb2a2df8f", "title": "File 51a"}]}