KS-CAM Phase I Closure Record: Methodological Closure Without a Physical Result on ξ0
Year: 2026
Type: preprint
Abstract: Day-D calibration was executed on ibm_kingston, trio [13,14,15] (Batch e2e4778b, jobs d9cj4tsi/d9cjh21h/d9cjhsan, PLAN:369ff001573e1c7ff9cb8601, drift bracket PASS). The frozen theta_cal gate FAILED with 14 causes (T2-echo/Ramsey sector: fits pegged at bounds, c_corr unidentifiable, holdout envelope out of jurisdiction), verdict INDETERMINATE-by-calibration. Per the published governance (v1.1, DOI 10.5281/zenodo.21385546), Block D was NOT executed and remains prohibited. Forensic note: T1, readout, T_qs(q0,q1) and static ZZ fitted sanely; the failure signature indicates a physics gap in the frozen M5 echo/Ramsey fit models (missing amplitude-damping floor at long delays), exposed only by real hardware — synthetic and mock banks could not see it. This record contains the raw calibration suite and the partial Lock for full traceability of why the trial did not open. Lock sha256: 5482d46166253fa89ab370eac860dfa7e77ccd51944c41b42d6463a511e6ad4c. Calibration suite sha256: 3069ae38347ad726603b4c8d260ef18d3964cf1e6d9c8b8a3f820ac2f322c073. Blinding commitment (unused today): ade1a565f6e28d8214582d79... No result on xi_0 exists.
Author: Cerezo, Arturo
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7168248256