{"id": "c537", "title": "C537 — Distinguish bilateral expansion from a mixed comparison", "filename": "C537.md", "role": "Research action", "step": 537, "sha256": "f1ce1756c8803997ad24f3e4df6ffaa91dcd91b47cb26c0fd1592f8dfccefebd", "bytes": 1229, "origins": ["C480–C1634/Research_Cycles/C0532_C0631/journal.json#C537"], "download": "/sources/f1ce1756c8803997ad24f3e4df6ffaa91dcd91b47cb26c0fd1592f8dfccefebd.md", "format": "md", "derived": true, "tags": ["Inverse", "Covenant"], "excerpt": "How do the350 and336 displays arise from the same161 spine?", "content": "# C537 — Distinguish bilateral expansion from a mixed comparison\n\n## Question\n\nHow do the350 and336 displays arise from the same161 spine?\n\n## Inputs\n\n```json\n{\n  \"original_triple\": [\n    1728,\n    1567,\n    1406\n  ],\n  \"held_midpoint\": 1567\n}\n```\n\n## Sources\n\n```json\n[\n  \"File60 §§3.3–3.4\"\n]\n```\n\n## Opened utc\n\n2026-09-28T00:00:33.967755+00:00\n\n## Results\n\n```json\n{\n  \"uniformly_expanded_triple_diagnostic\": [\n    1742,\n    1567,\n    1392\n  ],\n  \"uniform_outer_width\": 350,\n  \"one_arm_expanded_with_original_terminal\": 336,\n  \"historical_outer_width\": 322\n}\n```\n\n## Finding\n\nBoth arms expanded give175+175=350. Expanding only the Ishmael arm while retaining the original terminal gives175+161=336. The generated1392 companion is only the algebraic fixed-midpoint display, not a newly admitted historical node.\n\n## Reassessment\n\nResolve the147/161/175 progression and its14-unit connection to later clutch operations.\n\n## Checks\n\n```json\n{\n  \"uniform\": true,\n  \"mixed\": true,\n  \"historical\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T00:00:33.967938+00:00\n\n## Record provenance\n\nExact record hash: `ff2888920b75c1992ac755e7c1af426afe2a0ae939a4b4c066f5de280d78b711`\n\nSource journal: `Research_Cycles/C0532_C0631/journal.json`", "journalDownload": "/sources/7a2e1117efc741218b68e2db8bb20eadd33cab34e00384e9b903708031da1d2d.json", "evidenceLinks": [{"id": "d-12a48221b7fdcdcd", "title": "File 60"}]}