{"id": "c1551", "title": "C1551 — Classify theSP partition family", "filename": "C1551.md", "role": "Research action", "step": 1551, "sha256": "0cccce21b536eae1a6f46b18119f813ce02d891889ef249fd2e6e8facc41f835", "bytes": 951, "origins": ["C480–C1634/Research_Cycles/C1483_C1582/c1483_c1582/journal.json#C1551"], "download": "/sources/0cccce21b536eae1a6f46b18119f813ce02d891889ef249fd2e6e8facc41f835.md", "format": "md", "derived": true, "tags": [], "excerpt": "Which of the sevenSP constructions share a head, and why?", "content": "# C1551 — Classify theSP partition family\n\n## Question\n\nWhich of the sevenSP constructions share a head, and why?\n\n## Sources\n\n```json\n[]\n```\n\n## Opened utc\n\n2026-09-29T02:37:40.602160+00:00\n\n## Results\n\n```json\n{\n  \"classes\": {\n    \"11416\": [\n      \"F\",\n      \"S\",\n      \"N\",\n      \"FS\",\n      \"FN\"\n    ],\n    \"7096\": [\n      \"SN\",\n      \"FSN\"\n    ]\n  },\n  \"upper1550_gain\": 0,\n  \"600_refinement\": \"inheritedzero localdefects\",\n  \"explicit_life_loss\": 4320\n}\n```\n\n## Finding\n\nF/S/N/FS/FN form oneSP head class, whileSN/FSN form a second4320 later. The same local laws explain both classes.\n\n## Reassessment\n\nDetermine exactly how the earlier SP upper-branch translation changes through Noah.\n\n## Checks\n\n```json\n{}\n```\n\n## Closed utc\n\n2026-09-29T02:37:40.602993+00:00\n\n## Record provenance\n\nExact record hash: `1269a5b20c6a8a763f76ae43b75a795f3405b00712857b348f4c8c4f53ffe037`\n\nSource journal: `Research_Cycles/C1483_C1582/c1483_c1582/journal.json`", "journalDownload": "/sources/7241bc8dee3ba293341214bcb88dc4f80832f7d0207eb9e07f9364c06d3847c8.json"}