Arnxxau focused on enhancing authentication data fidelity in the mmoayyed/cas repository by improving Google Authenticator REST registration flows. They delivered a feature that adds the device name to OneTimeTokenAccount registration headers, ensuring alignment between account names and registration data. Using Java and REST API integration, Arnxxau expanded automated test coverage to validate required headers in REST save requests, which helps maintain data integrity and supports better analytics in authentication processes. The work demonstrated depth in backend development and testing, with no major regressions observed, and contributed to a more robust and user-aligned authentication experience within the project.