Scientific Pre-Registration: Observational Test Plan for the Tau/Tav Compact Topological Scale

This technical note provides the formal observational test plan and pre-registration for the Tau/Tav compact topological scale (τ ≈ 7 h−1 Mpc). Derived from a 5D Kaluza-Klein framework, the model predicts specific, detectable residuals in the power spectraof upcoming cosmological surveys. The document establishes a rigorous Falsification Clause anchored to the integrated 2026–2027 data cycle, utilizing combined likelihoods from the Euclid mission, Rubin LSST, and Pulsar Timing Array (PTA) observations[cite: 13, 14]. To minimize systematic bias, the plan mandates a Consistency Requirement, necessitating statistically compatible detections across at least two independent observational probes[cite: 15, 27]. Esta nota técnica proporciona el plan de prueba observacional formal y el pre-registro para la escala topológica compacta Tau/Tav (τ ≈ 7 h−1 Mpc)[cite: 6]. El documento establece una Cláusula de Falsación vinculada al ciclo de datos integrado 2026–2027[cite:16].