Trust in Protocols, Not Institutions: Transparency Logs for API Authorization

This is the sixth post in my series on Germany’s federal API authorization blueprint. We have a verified client, a sender-constrained token, and a policy-based decision about what it may do. Now comes the question that most security architectures answer weakly, with a shrug toward a log file: how does anyone know the system behaved honestly — including when the threat is coming from inside the operator?