{"id": "c769", "title": "C769 — Measure the effect of retained subdivisions", "filename": "C769.md", "role": "Research action", "step": 769, "sha256": "afb401d86a00c7d6739fd03fcdefe843682405947930ab4c2077c808620845d1", "bytes": 1038, "origins": ["C480–C1634/Research_Cycles/C0732_C0831/journal.json#C769"], "download": "/sources/afb401d86a00c7d6739fd03fcdefe843682405947930ab4c2077c808620845d1.md", "format": "md", "derived": true, "tags": ["Cumulative", "Rounded"], "excerpt": "Does whole-chain cancellation justify rounding arbitrary subpath totals?", "content": "# C769 — Measure the effect of retained subdivisions\n\n## Question\n\nDoes whole-chain cancellation justify rounding arbitrary subpath totals?\n\n## Inputs\n\n```json\n{}\n```\n\n## Sources\n\n```json\n[\n  \"File51a cumulative Enoch and Terah boundaries\"\n]\n```\n\n## Opened utc\n\n2026-09-28T01:58:29.743865+00:00\n\n## Results\n\n```json\n{\n  \"subpath\": \"Enoch→Terah\",\n  \"actual_span\": 5852,\n  \"row_rounded_span\": 5860,\n  \"once_rounded_total\": 5850,\n  \"defect\": 10,\n  \"field_span_change\": 8\n}\n```\n\n## Finding\n\nThe source subpath5852 becomes5860 by row rounding but5850 by rounding its total. Retained subdivision is part of the construction, even when the full12600 total cancels.\n\n## Reassessment\n\nState the minimal recoverable object linking Actual and Rounded.\n\n## Checks\n\n```json\n{\n  \"defect\": true,\n  \"residual_prediction\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T01:58:29.744648+00:00\n\n## Record provenance\n\nExact record hash: `012a304a496a71818936a25919377e3dd33dff0540daacb954743f5a9e41ef62`\n\nSource journal: `Research_Cycles/C0732_C0831/journal.json`", "journalDownload": "/sources/8ea2b882289fbcea5cf11177923617f0c1d1ad7e6eaa3bffb174c6f89699d97d.json", "evidenceLinks": [{"id": "d-d8aa38afb2a2df8f", "title": "File 51a"}]}