AraY2 v1.0 is a proposed orbital-deviation measurement framework designed to identify and quantify non-random timing discrepancies in multi-body celestial systems. This public non-enabling record presents a 96-hour blind forecast of timing-deviation bands across three independent orbital systems. The release discloses only expected deviation bands, anonymized system labels and pass/fail criteria. A public comparison table is included in the uploaded document so that, after the 96-hour verification window, the forecast can be compared against publicly reproducible ephemeris outputs without disclosing the underlying method. The underlying methodology, coefficients, target mapping, formulas, derivations, coordinates, orbital-state vectors and computational structure remain confidential pending intellectual property protection. This record is intended as a timestamped public priority notice for an independent predictive orbital-deviation measurement framework. Author: Luis Pablo Araya Salazar - Engineer - Chile.Publication date: 2026-04-27.Reserved DOI: 10.5281/zenodo.19837232.