{"id": "c240", "title": "C240 — The 1656 tail and the MT antediluvian span have distinct endpoints", "filename": "490d_C240_529_Mirror_Bounded_Step_20260923.md", "role": "Research action", "step": 240, "sha256": "2329717203d068b118e0560a4b7db790e56b133490b9350d9049316a6f2a1b26", "bytes": 1977, "origins": ["C01–C479/reference/490d_C01_C265_Complete_Window_Archive_20260923.zip!/workspace/mirror_C206_C265_529_Expansion_Centers_20260923/C240/490d_C240_529_Mirror_Bounded_Step_20260923.md"], "download": "/sources/2329717203d068b118e0560a4b7db790e56b133490b9350d9049316a6f2a1b26.md", "format": "md", "derived": false, "tags": ["Regular", "Mirror / 529"], "excerpt": "C240 — The 1656 tail and the MT antediluvian span have distinct endpoints\n\n23 September 2026 · Step 35 of 60, continuing C205.\n\nC239’s middle tail equals the retained MT Creation-to-Flood span 4114−2458=1656. However, its own endpoints are reflected Conquest and reflected MT Noah birth.\n\nThe numerical match is exact in", "content": "# C240 — The 1656 tail and the MT antediluvian span have distinct endpoints\n\n23 September 2026 · Step 35 of 60, continuing C205.\n\nC239’s middle tail equals the retained MT Creation-to-Flood span 4114−2458=1656. However, its own endpoints are reflected Conquest and reflected MT Noah birth.\n\nThe numerical match is exact in the stated source profiles. It does not establish endpoint identity, a new Gear on Creation, or a common expansion map between the two intervals. The 1656 tail is already determined by 7475−5819. Its potential thematic interest can be retained without counting it as an independent 529-family derivation. The original full-430 MT source state is explicitly distinguished from the minimum 3899 state in File_18.\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**4 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"}]}