{"id": "c251", "title": "C251 — A shifted apparent anchor does not preserve the native endpoint result", "filename": "490d_C251_529_Mirror_Bounded_Step_20260923.md", "role": "Research action", "step": 251, "sha256": "fd53c0d83546d890e4828d60ee830dcf0308610834b2571c46e42aec187a8ec9", "bytes": 1937, "origins": ["C01–C479/reference/490d_C01_C265_Complete_Window_Archive_20260923.zip!/workspace/mirror_C206_C265_529_Expansion_Centers_20260923/C251/490d_C251_529_Mirror_Bounded_Step_20260923.md"], "download": "/sources/fd53c0d83546d890e4828d60ee830dcf0308610834b2571c46e42aec187a8ec9.md", "format": "md", "derived": false, "tags": ["Regular", "Mirror / 529"], "excerpt": "C251 — A shifted apparent anchor does not preserve the native endpoint result\n\n23 September 2026 · Step 46 of 60, continuing C205.\n\nAs a control, move only the Creation anchor 30 years earlier while keeping the same native Conquest point. The double-expansion output changes by 30(25/23)²−1=2880/529. Every formerly inte", "content": "# C251 — A shifted apparent anchor does not preserve the native endpoint result\n\n23 September 2026 · Step 46 of 60, continuing C205.\n\nAs a control, move only the Creation anchor 30 years earlier while keeping the same native Conquest point. The double-expansion output changes by 30[(25/23)²−1]=2880/529. Every formerly integral Flood output becomes fractional.\n\nThis does not rerun the apparent-Creation campaign or reject its separately anchored results. It shows only that the present native 11-fold endpoint correspondence cannot be transferred by changing one anchor and leaving the other input fixed. The new input width is then 11K+30, so it is no longer the same native 11-fold interval.\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**12 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"}]}