{"id": "c1217", "title": "C1217 — Locate the row where the rounding carry itself changes", "filename": "C1217.md", "role": "Research action", "step": 1217, "sha256": "afc127037ccbe4698c5c4ce1d20b7d7fb9f9e24a8dd8bbad42cf4cfa1df7ac2b", "bytes": 1196, "origins": ["C480–C1634/Research_Cycles/C1132_C1431_Recovered/journal.json#C1217"], "download": "/sources/afc127037ccbe4698c5c4ce1d20b7d7fb9f9e24a8dd8bbad42cf4cfa1df7ac2b.md", "format": "md", "derived": true, "tags": ["Regular", "Cumulative", "Rounded"], "excerpt": "Does rounded lifespan change always equal rounded begetting plus remaining-year changes?", "content": "# C1217 — Locate the row where the rounding carry itself changes\n\n## Question\n\nDoes rounded lifespan change always equal rounded begetting plus remaining-year changes?\n\n## Inputs\n\n```json\n{}\n```\n\n## Sources\n\n```json\n[\n  \"C1214\",\n  \"C1199\"\n]\n```\n\n## Opened utc\n\n2026-09-28T05:29:14.399115+00:00\n\n## Results\n\n```json\n{\n  \"carry_change\": {\n    \"path\": \"model/whole_genealogy_rounded_carry_change.json\",\n    \"sha256\": \"9e64605b3c1b687ca5656ad9eb06a5cfe846fd29f54ea82de3a48bd97031fdc8\",\n    \"bytes\": 1422\n  },\n  \"nonzero\": [\n    {\n      \"name\": \"Lamech\",\n      \"carry_change\": 5\n    }\n  ]\n}\n```\n\n## Finding\n\nLamech alone changes the carry, by+5. Its Rounded lifespan adjustment is−20, while its rounded remaining-year adjustment is−25; keeping the carry reconciles both constructions.\n\n## Reassessment\n\nSummarize the whole-row route into Rounded chronology and select the next larger family connection.\n\n## Checks\n\n```json\n{\n  \"onlyLamech\": true,\n  \"sum5\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T05:29:14.399680+00:00\n\n## Record provenance\n\nExact record hash: `e172278e3603cd66a7bf10fdcbb9d2a8f3fc422b899c92b917e2732e3190c525`\n\nSource journal: `Research_Cycles/C1132_C1431_Recovered/journal.json`", "journalDownload": "/sources/6adb632ce171623c2bce60d7ed58ae319ccb379cf76b751c0a477c1742fd348c.json", "evidenceLinks": [{"id": "d-9e64605b3c1b687c", "title": "model/whole_genealogy_rounded_carry_change.json"}]}