UDCT v7.10 — Preregistration: Sensitivity of the v7.09 GQUMOND Example-A Virial and Jeans Results to the Screening Function f, the QUMOND Function Q, and the Inner Stellar Profile, with a Focus on the Hydrus I Central Region

This record contains the reviewed UDCT v7.10 preregistration document and its companion Python code and README. The planned sensitivity study examines how the v7.09 GQUMOND Example-A virial and Jeans results depend on the screening function f, the QUMOND function Q, and the inner stellar density profile, with particular attention to the central region of Hydrus I. This preregistration records the proposed tests and analysis framework. It should be distinguished from a subsequent report of sensitivity-test results. The document was originally drafted on 4 October 2026 and reviewed on 5 October 2026. Files included: Reviewed preregistration PDF Companion Python script README with usage and documentation GitHub repository: https://github.com/wspaik5/UDCT_v7.10_Preregistration_GQUMOND_Sensitivity