{"id": "c654", "title": "C654 — Reconstruct the secondary30/40 junction", "filename": "C654.md", "role": "Research action", "step": 654, "sha256": "7052357295063e3f321dd4331a6ff1cae2f537791edb3f9dd54c7f9d6964c301", "bytes": 1215, "origins": ["C480–C1634/Research_Cycles/C0632_C0731/journal.json#C654"], "download": "/sources/7052357295063e3f321dd4331a6ff1cae2f537791edb3f9dd54c7f9d6964c301.md", "format": "md", "derived": true, "tags": [], "excerpt": "Which equation generates the source’s30|30|40|40 arrangement?", "content": "# C654 — Reconstruct the secondary30/40 junction\n\n## Question\n\nWhich equation generates the source’s30|30|40|40 arrangement?\n\n## Inputs\n\n```json\n{\n  \"H\": 1929,\n  \"D\": 1859,\n  \"a\": 30,\n  \"b\": 40,\n  \"source_path\": [\n    1959,\n    1929,\n    1899,\n    1859,\n    1819\n  ]\n}\n```\n\n## Sources\n\n```json\n[\n  \"File70 §5.4; secondary schematic comparison\"\n]\n```\n\n## Opened utc\n\n2026-09-28T01:06:20.396425+00:00\n\n## Results\n\n```json\n{\n  \"path\": [\n    1959,\n    1929,\n    1899,\n    1859,\n    1819\n  ],\n  \"junction_from_below\": 1899,\n  \"gaps\": [\n    30,\n    30,\n    40,\n    40\n  ],\n  \"whole\": 140\n}\n```\n\n## Finding\n\nThe shared1899 junction follows exactly from H−D=a+b=70. The whole path then has width2(a+b)=140. Its schematic30-day premise supplies the junction; choosing29 would give1900 instead.\n\n## Reassessment\n\nReconstruct Joseph’s complete supplied age rail and determine what is retained from Creation.\n\n## Checks\n\n```json\n{\n  \"source_path\": true,\n  \"junction\": true,\n  \"dependency\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T01:06:20.396626+00:00\n\n## Record provenance\n\nExact record hash: `14c2e962db65235ffc3310e40dbdab2dd2684788aed34f81121ae669703b86b4`\n\nSource journal: `Research_Cycles/C0632_C0731/journal.json`", "journalDownload": "/sources/f0643e934c6a7443706351fa40040684d915ed0ae25c0f9188a4c4dba12814ff.json", "evidenceLinks": [{"id": "d-0fa80217c94b3951", "title": "File 70"}]}