{"id": "c252", "title": "C252 — The source Conquest-to-Flood tail is 1056, not 1058", "filename": "490d_C252_529_Mirror_Bounded_Step_20260923.md", "role": "Research action", "step": 252, "sha256": "196841c5351b94e7aa3005f6cfa797ab51a2a207a9fadda63a761ba53a54ce2a", "bytes": 2129, "origins": ["C01–C479/reference/490d_C01_C265_Complete_Window_Archive_20260923.zip!/workspace/mirror_C206_C265_529_Expansion_Centers_20260923/C252/490d_C252_529_Mirror_Bounded_Step_20260923.md"], "download": "/sources/196841c5351b94e7aa3005f6cfa797ab51a2a207a9fadda63a761ba53a54ce2a.md", "format": "md", "derived": false, "tags": ["Regular", "Mirror / 529"], "excerpt": "C252 — The source Conquest-to-Flood tail is 1056, not 1058\n\n23 September 2026 · Step 47 of 60, continuing C205.\n\nEach admitted row has a source-qualified outer tail from reflected Conquest to its final reflected Flood boundary of 1056=2K−2. Its expansion-stage subdivision is 506+550.\n\n| Conquest center | Generated midd", "content": "# C252 — The source Conquest-to-Flood tail is 1056, not 1058\n\n23 September 2026 · Step 47 of 60, continuing C205.\n\nEach admitted row has a source-qualified outer tail from reflected Conquest to its final reflected Flood boundary of 1056=2K−2. Its expansion-stage subdivision is 506+550.\n\n| Conquest center | Generated middle center | Sourced Flood center | Outer tail |\n|---|---|---|---|\n| 1399 | 1905 | 2455 | 1056 |\n| 1400 | 1906 | 2456 | 1056 |\n| 1401 | 1907 | 2457 | 1056 |\n| 1402 | 1908 | 2458 | 1056 |\n| 1403 | 1909 | 2459 | 1056 |\n| 1404 | 1910 | 2460 | 1056 |\n\nThe outer endpoints are sourced; the internal expansion point is generated. This tail differs by two years from C09’s original 1058 Conquest-to-next-Gear-Flood tail. Keeping that residual is essential: erasing it would collapse two different endpoint selections and conceal the connection between 11×625 and 13×529.\n\n## Evidence and scope\n\nK=529 and r=25/23. BC base B means (B+1)t/Bn BC; reflected AD base A means AD At/(A+1)n. Their civil span is B+A in both seasonal components, with no year zero. Signed paired centers are −B and +A; the center model uses components ±1/4 and restores this separation after dilation. An interval center is geometry, not an event or a proposed universal Mirror axis.\n\nRegular Gears are restricted to Noah/Shem/Flood. Creation and Conquest retain fixed source-field members; no fourth Gear is admitted. Generated coordinates, source-field membership and stored graph incidence are distinct. File_18/File_09 and the frozen C127 graph are unchanged. Earlier N01/N03 qualifications, the missing Shem join, closed primers and unestablished original Reports 11–25 remain unchanged. This packet selectively uses prior evidence; it does not rerun completed campaigns. Assertions and alternative placements are not independent historical witness counts.\n\n**18 step-specific checks and 19 frozen-input checks passed.** Exact inputs, results and predecessor hashes are in the accompanying JSON records; calculation code is in the evidence archive. Source dependencies are identified in the body and frozen in `sources/`.\n", "evidenceLinks": [{"id": "d-68301ab760bfbe2e", "title": "File 18"}, {"id": "d-45851004c5864229", "title": "File 09"}]}