{"id": "c1455", "title": "C1455 — Explain the LXX–MT cumulative order change", "filename": "C1455.md", "role": "Research action", "step": 1455, "sha256": "8a75c2b04bb907317490aed3010011396692c90757cf36221a5db02ae0a141ea", "bytes": 1060, "origins": ["C480–C1634/Research_Cycles/C1433_C1482/journal.json#C1455"], "download": "/sources/8a75c2b04bb907317490aed3010011396692c90757cf36221a5db02ae0a141ea.md", "format": "md", "derived": true, "tags": ["Cumulative", "Inverse"], "excerpt": "How does a20-year upper-leg source difference become a2000-year reversed difference?", "content": "# C1455 — Explain the LXX–MT cumulative order change\n\n## Question\n\nHow does a20-year upper-leg source difference become a2000-year reversed difference?\n\n## Sources\n\n```json\n[\n  \"LXX and MT cumulative source legs\"\n]\n```\n\n## Opened utc\n\n2026-09-29T01:17:04.328987+00:00\n\n## Results\n\n```json\n{\n  \"source_lower_gap\": 910,\n  \"source_upper_gap\": -20,\n  \"inverse_lower_gap\": 910,\n  \"inverse_upper_gap\": -2000,\n  \"source_head_gap\": 890,\n  \"inverse_head_gap\": -1090\n}\n```\n\n## Finding\n\nThe retained lower gap910 combines with upper−20 before reversal and upper−2000 after it: source890 becomes inverse−1090. The changed decimal place explains the reordered heads.\n\n## Reassessment\n\nUse the MT/SP preserved610 gap to explain the third cumulative comparison without treating it as independent.\n\n## Checks\n\n```json\n{\n  \"correct_gaps\": true\n}\n```\n\n## Closed utc\n\n2026-09-29T01:17:04.329348+00:00\n\n## Record provenance\n\nExact record hash: `ade027f64326d69ba9af9eeca2f4ba6fe327dae84c6380a43d8af9a6b5227c68`\n\nSource journal: `Research_Cycles/C1433_C1482/journal.json`", "journalDownload": "/sources/ca542c4d870fa9b9292d3dd24718f08766a5353e1b27cbb1e7c0d69061b00ecf.json"}