{"id": "c1443", "title": "C1443 — Bind the named600-year hinge in both modes", "filename": "C1443.md", "role": "Research action", "step": 1443, "sha256": "b378d0d2d9f78e67a582b24afea13e275df94460bde346588d89a73ddcee7807", "bytes": 1921, "origins": ["C480–C1634/Research_Cycles/C1433_C1482/journal.json#C1443"], "download": "/sources/b378d0d2d9f78e67a582b24afea13e275df94460bde346588d89a73ddcee7807.md", "format": "md", "derived": true, "tags": ["Regular", "Cumulative", "Rounded"], "excerpt": "Which additional internal node can be used consistently in all six source paths?", "content": "# C1443 — Bind the named600-year hinge in both modes\n\n## Question\n\nWhich additional internal node can be used consistently in all six source paths?\n\n## Sources\n\n```json\n[\n  \"File51a MT Noah and Shem rows\",\n  \"Comparative Study §4.1 LXX Shem\",\n  \"File53 SP cumulative envelopes\"\n]\n```\n\n## Opened utc\n\n2026-09-29T01:13:46.074026+00:00\n\n## Results\n\n```json\n{\n  \"MT_regular\": {\n    \"F\": 2456,\n    \"hinge\": 3056,\n    \"role\": \"Noah\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  },\n  \"MT_cumulative\": {\n    \"F\": 4836,\n    \"hinge\": 5436,\n    \"role\": \"Shem\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  },\n  \"LXX_regular\": {\n    \"F\": 3236,\n    \"hinge\": 3836,\n    \"role\": \"Noah\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  },\n  \"LXX_cumulative\": {\n    \"F\": 5746,\n    \"hinge\": 6346,\n    \"role\": \"Shem\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  },\n  \"SP_regular\": {\n    \"F\": 3106,\n    \"hinge\": 3706,\n    \"role\": \"Noah\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  },\n  \"SP_cumulative\": {\n    \"F\": 4716,\n    \"hinge\": 5316,\n    \"role\": \"Shem\",\n    \"span\": 600,\n    \"construction\": \"same rounded source state; no new Gear transport\"\n  }\n}\n```\n\n## Finding\n\nRegular uses Noah birth600 before Flood; Cumulative uses the Shem lifespan boundary600 before Flood. These are separate role-tagged source paths.\n\n## Reassessment\n\nTest MT Regular Flood-only, Noah-only and both-node partitions first, retaining the same endpoints.\n\n## Checks\n\n```json\n{\n  \"hinges_inside_all_paths\": true\n}\n```\n\n## Closed utc\n\n2026-09-29T01:13:46.075327+00:00\n\n## Record provenance\n\nExact record hash: `12c70e44c1a378fdc6d2dbc2f9faf54543c1548aa0857920a0b015f13da5978f`\n\nSource journal: `Research_Cycles/C1433_C1482/journal.json`", "journalDownload": "/sources/ca542c4d870fa9b9292d3dd24718f08766a5353e1b27cbb1e7c0d69061b00ecf.json", "evidenceLinks": [{"id": "d-9f0e41022cab59a4", "title": "File 53"}, {"id": "d-d8aa38afb2a2df8f", "title": "File 51a"}]}