{"id": "c868", "title": "C868 — Transport the complete NT fork to the second rail", "filename": "C868.md", "role": "Research action", "step": 868, "sha256": "f021b2d9ebeaec0b0d7c52053196530cbf769fa98a3ff068fb0b1e7e167f58ae", "bytes": 1484, "origins": ["C480–C1634/Research_Cycles/C0832_C0931/journal.json#C868"], "download": "/sources/f021b2d9ebeaec0b0d7c52053196530cbf769fa98a3ff068fb0b1e7e167f58ae.md", "format": "md", "derived": true, "tags": [], "excerpt": "Does moving both hinge and display preserve every Key radius?", "content": "# C868 — Transport the complete NT fork to the second rail\n\n## Question\n\nDoes moving both hinge and display preserve every Key radius?\n\n## Inputs\n\n```json\n{\n  \"old_hinge_BC\": 6,\n  \"new_hinge_BC\": 36\n}\n```\n\n## Sources\n\n```json\n[\n  \"File43 rail36\",\n  \"File54 Enoch fork\",\n  \"C866–867\"\n]\n```\n\n## Opened utc\n\n2026-09-28T02:44:52.667020+00:00\n\n## Results\n\n```json\n{\n  \"translated_returns\": {\n    \"path\": \"model/NT_36BC_rail_returns.json\",\n    \"sha256\": \"17f7a1fd328c63476e6ad5c6c76eda6f800ea34f63d9a0470af4b40ece161565\",\n    \"bytes\": 868\n  },\n  \"Enoch\": [\n    {\n      \"key\": \"E\",\n      \"source\": \"Enoch\",\n      \"image\": \"Creation of Adam\",\n      \"source_BC\": 4866,\n      \"image_BC\": 5286,\n      \"old_image_plus30\": 5286\n    },\n    {\n      \"key\": \"P\",\n      \"source\": \"Enoch\",\n      \"image\": \"Jared\",\n      \"source_BC\": 4866,\n      \"image_BC\": 4936,\n      \"old_image_plus30\": 4936\n    }\n  ]\n}\n```\n\n## Finding\n\nMoving the whole display and hinge by30BC preserves every radius and Key index. The source fork becomes4866→5286/4936. This is whole-frame covariance, distinct from an isolated MT apparent-age adjustment.\n\n## Reassessment\n\nConstruct the entire common49/70 coarsening of the primary span.\n\n## Checks\n\n```json\n{\n  \"all_images\": true,\n  \"six_rows\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T02:44:52.667545+00:00\n\n## Record provenance\n\nExact record hash: `9a5ee3519b97a41fa59f8de443ed94a569821a97a15e65f6031c8db5acc5378d`\n\nSource journal: `Research_Cycles/C0832_C0931/journal.json`", "journalDownload": "/sources/6a37be4e218f9f467cbde5e9db3723ce9c79dc78cc97d1a289422b96cb9971e0.json", "evidenceLinks": [{"id": "d-17f7a1fd328c6347", "title": "model/NT_36BC_rail_returns.json"}, {"id": "d-1ff1914fa180de2a", "title": "File 54"}, {"id": "d-dde4eca7c1f64eae", "title": "File 43"}]}