{"id": "c470", "title": "All Sourced 1150 Intervals and Fixed-Pivot Expansion to 1250", "filename": "490d_C470_Complete_1150_to_1250_Fixed_Pivot_Census_20260925.md", "role": "Research action", "step": 470, "sha256": "5ba9e06c7ee25c885bb990524305f4defb12ea8c4f47e36c61a76133051ce236", "bytes": 3005, "origins": ["C01–C479/packets/C470/490d_C470_Complete_1150_to_1250_Fixed_Pivot_Census_20260925.md", "C480–C1634/Research_Cycles/C0480_Bridge/sources/C470_REPORT.md"], "download": "/sources/5ba9e06c7ee25c885bb990524305f4defb12ea8c4f47e36c61a76133051ce236.md", "format": "md", "derived": false, "tags": ["Regular", "Cumulative", "Inverse", "Calendar Keys", "Mirror / 529"], "excerpt": "490d C470 — All Sourced 1150 Intervals and Fixed-Pivot Expansion to 1250\n\n25 September 2026 UTC. Step 1 of 10, C470–C479.\n\nThe frozen register contains 51 distinct 1150-year intervals, representing101 endpoint-label pairs. Each was tested at the same eight fixed E pivots. Of408 trials,16 produce two integer outputs; th", "content": "# 490d C470 — All Sourced 1150 Intervals and Fixed-Pivot Expansion to 1250\n\n25 September 2026 UTC. Step 1 of 10, C470–C479.\n\nThe frozen register contains **51 distinct 1150-year intervals**, representing101 endpoint-label pairs. Each was tested at the same eight fixed E pivots. Of408 trials,16 produce two integer outputs; three have both outputs in the source register.\n\n| Input pair | Fixed pivot | Output pair | Complete2K predecessor? |\n|---|---:|---|---|\n|1955,3105|3680|1805,3055|No|\n|2020,3170|2756|1956,3206|Yes:2148,3206 underE3620|\n|2148,3298|3620|2020,3270|No|\n\nEach admitted interval expands1150×25/23=1250. All original record indices are retained for input, output and pivot. The predecessor test uses the inverse equation x=(23m+2p)/25 at each of the eight fixed first pivots; it does not add inverse E as a new forward operator.\n\nThe1955/3105 case has an integer candidate predecessor2093/3151 under3680, but it is not complete in the register. The2148/3298 case has no integral predecessor pair at any fixed first pivot. The established2K ladder is recovered exactly.\n\nThese are two additional source-complete1150→1250 comparisons within the declared menu, not two additional complete2K ladders. Their source roles and context changes remain to be resolved before drawing a broader conclusion.\n\n## Verification and scope\n\n432 calculation checks and 21 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\nAll absence and completeness claims are limited to the528-record,373-coordinate register and eight fixed pivots. No new source coordinate, pivot, phase or global axis is introduced.\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**C471, proposed and unexecuted:** Resolve all three admitted1150→1250 expansions into source-role and context changes, classify the two missing2K ancestries by exact inverse congruence and source membership, and identify their common output binding.\n\nThe finite census separates three positive expansions from one complete2K ancestry. Source-role equations and exact failure categories will show what the two additional cases actually mean.\n", "evidenceLinks": [{"id": "d-24203a4c3b282f9b", "title": "File 02"}]}