490d C422 — Source and component audit of the new 2K profile
24 September 2026. Step 9 of 10 in the C414–C423 authorization.
All23 relevant source records reconstruct exactly from current source passages. Twelve excerpt cards retain the actual text and hashes for person baselines, Flood tables, variants, SP locality and qualifications, LXX removal, both500/502 modes, E/P/E² scalars, J's gap-only status and the January Mirror/component convention.
The reconstructed set contains the eight main person stations, all twelve event records in C418's three-Gear boundary controls, the new MT Flood-close2649 endpoint, and the SP-primary/LXX-native Noah rail controls at3900. Person and event calculations use their own independently parsed baselines; no Flood close is typed as a person companion. LXX already contains native Cainan; theoretical OFF uses subtraction rather than a second insertion.
The source passages explicitly warrant endpoints, baseline/variant rules, qualified950/600 lifespans and500/502 bindings. The particular1058 cross-context profile, its finite uniqueness, the mixed-boundary five-station comparison and the held3899 squared-E endpoint are derived arithmetic. No prescription for that combined selection is established by the reviewed excerpts. SP primary Noah death retains its inclusive/harmonic qualification; the new main profile uses SP companion.
Inherited quarter-offset components provide a separate control. Across five station pairs and four upper/lower assignments each, exactly ten comparisons pass: the two matched-offset components per station. This follows from the translation's slope1. Opposite offsets differ by half a year. These are existing signed-coordinate component diagnostics, not newly assigned civil dates or phases.
For the fixed held3899 E² map, all four input/output quarter-offset assignments fail. The two matched offsets have errors−24/529 and+24/529; the opposite assignments give−577/1058 and+577/1058. Jointly shifting both pivot and input by the same quarter offset does return the correspondingly shifted output, but it changes the pivot. Those two comparisons are not one fixed-pivot physical-time action.
The source audit therefore supports the finite person-profile translation and exact scalar endpoint while preserving their different scope. It adds no source point, phase, global Mirror axis or canonical operation.
Verification and limits
64 main checks and 21 frozen-input/predecessor authentication checks passed. A second main replay produced byte-identical DATA/RESULTS. These checks and the source interpretation were performed by the root agent; no new independent-agent review is claimed. All frozen originals and standing controls remain unchanged. Verification counts are not independent-witness counts.
The alternate component comparisons are not new witnesses, phases or calendar prescriptions. No independent-agent review is claimed. Regular Gears remain Noah/Shem/Flood only.
Mirror/529 focus: K=529, E=25/23, P=70/69. Global paired Mirror January AD1; local junction January AD2; no civil year zero. Regular Gears are Noah/Shem/Flood only. SP minus-one person companions remain local to SP Noah/Shem; Flood close is a separate boundary. No upstream/cumulative Gear, new endpoint or phase, fitted anchor, global axis, primer reopening, canonical or graph edit. Capture now; canonize later. Source identity, context, modal binding, generated coordinates and phase ancestry stay distinct.
Decision after this result
C423, proposed and unexecuted: Consolidate C414–C422, run a separate root-agent arithmetic/source implementation and sealed-packet replay, then publish the C423 synthesis, final checkpoint and recovery packages. Leave C424 unexecuted.
The new profile, harmonic endpoint, source-path obstruction and component scope are now bounded. The tenth authorized step should preserve and verify the completed chain rather than open another research branch.