{"id": "c461", "title": "Fixed Mirror Images of the Complete 529 Pair Inventory", "filename": "490d_C461_Fixed_Mirror_Images_of_All_529_Source_Pairs_20260925.md", "role": "Research action", "step": 461, "sha256": "ddb4d03c8644b6ae05ece22ceac02504e16989648b7ce4213be91b2855cb3d0f", "bytes": 3229, "origins": ["C01–C479/packets/C461/490d_C461_Fixed_Mirror_Images_of_All_529_Source_Pairs_20260925.md"], "download": "/sources/ddb4d03c8644b6ae05ece22ceac02504e16989648b7ce4213be91b2855cb3d0f.md", "format": "md", "derived": false, "tags": ["Regular", "Cumulative", "Calendar Keys", "Mirror / 529"], "excerpt": "490d C461 — Fixed Mirror Images of the Complete 529 Pair Inventory\n\n25 September 2026 UTC. Step 17 of 25, C445–C469.\n\nThe120 fixed-Mirror pair trials yield five complete images, all2K intervals: four atA−2639 and one atA−2635. Exactly two have17K cross-spans, reproducing2648/3706↔−6345/−5287 and2650/3708↔−6343/−5285. T", "content": "# 490d C461 — Fixed Mirror Images of the Complete 529 Pair Inventory\n\n25 September 2026 UTC. Step 17 of 25, C445–C469.\n\nThe120 fixed-Mirror pair trials yield five complete images, all2K intervals: four atA−2639 and one atA−2635. Exactly two have17K cross-spans, reproducing2648/3706↔−6345/−5287 and2650/3708↔−6343/−5285. The other three have8991,8995 and8997 cross-spans.\n\n| Fixed A | Regular pair | Cumulative pair | Equal cross-spans |\n|---:|---|---|---:|\n| -2639 | [2647, 3705] | [-6344, -5286] | 8991 |\n| -2639 | [2648, 3706] | [-6345, -5287] | 8993 |\n| -2639 | [2649, 3707] | [-6346, -5288] | 8995 |\n| -2639 | [2650, 3708] | [-6347, -5289] | 8997 |\n| -2635 | [2650, 3708] | [-6343, -5285] | 8993 |\n\nFor an ordered regular pair x<y and fixed exchangeX_A(x)=A−x, the sorted cumulative image is(A−y,A−x). Its interval equals y−x automatically. The two cross-spans are both x+y−A. Therefore retaining a2K interval does not by itself retain a17K cross-span.\n\nAll34 one-K source pairs fail the double-endpoint cumulative-source test under these two exchanges. Only four distinct regular2K pairs appear among the five successful slots. Both original positive controls remain intact.\n\nThe cumulative domain is the separately frozen48-record LXX Noah/Shem/Flood menu. Its annual indices are not regular Gears. The next check must compare the actual inherited annual-row assignments: a pair of available coordinates under a fixed exchange need not have the same phase ancestry as its original C287 corner.\n\n## Verification and scope\n\n120 calculation checks and 22 source/predecessor authentication checks passed. Main result files replay byte for byte. These are root-agent checks, not an independent-agent review or independent historical witnesses.\n\nThe two fixed exchanges are the complete active Mirror menu in this test. This does not claim that only two17K rows existed in earlier work; C287 is checked next without fitting replacement constants.\n\nMirror/529 focus: K=529, E=25/23, P=70/69; J=300/299 remains File02 gap conversion, not a calendar date operator or Residue Protocol. Regular Gears are Noah/Shem/Flood only. SP person companions are local to Noah/Shem; Flood close is an independent event boundary. Both500/100 and502/98 bindings remain valid; SP primary Noah death retains its inclusive/harmonic qualification. LXX native Cainan is ON; OFF is theoretical removal. Global paired Mirror January AD1; local junction January AD2; no civil year zero. No new source point, phase, fitted axis, upstream/cumulative Gear, primer reopening or canonical/graph edit. Capture now; canonize later. Coordinates, source labels, context aliases and derived comparisons remain distinct. Counts are not independent historical witnesses.\n\n## Best next bounded step\n\n**C462, proposed and unexecuted:** Compare the five fixed-exchange images with the complete archived C287 annual-row assignments, derive the condition for17K cross-spans, and distinguish inherited phase matches from coordinate-only images.\n\nThe fixed constants preserve interval width but can pair different annual slots. Reviewing the C287 row identities is necessary before calling any additional sourced image an inherited17K corner.\n", "evidenceLinks": [{"id": "d-24203a4c3b282f9b", "title": "File 02"}]}