REBAR: Reference Ethical Benchmark for Autonomy Readiness. - Jonathan Diller; David Barnes; Rebekah Bogdanoff; Rhett Collier; Roddy Collins; Keith Fieldhouse; Yonatan Gefen; Cameron Johnson; Anuriha Kodali; Brad Kriel; Varun Murali; James Niehaus; et al. (CoRR, 2026)