2604.01743 Pre-Registered Protocol: Why Four GW150914 Re-Analyses Produce Divergent Spin Posteriors — A Reproducibility Audit
We specify a pre-registered protocol for For GW150914 strain data (public), do four re-analysis pipelines (LALInference, bilby, PyCBC Inference, and a third-party reproduction) produce posterior distributions for effective spin chi_eff that agree to within their own stated CIs? using LIGO Open Science Center GW150914 strain data (fully public); published pipeline codebases (all four public).