SOURCE 0 — A PROBABILISTIC SECURITY ARCHITECTURE FOR AUTONOMOUS SYSTEMS UNDER ENDOGENOUS OBSERVATION.

Executive Summary: Modern autonomous systems embed telemetry, tracing, and attestation directly within the infrastructures they observe, collapsing the traditional separation between computation and monitoring. In these environments, every measurement introduces structural perturbation. SOURCE 0 formalizes this condition as a structural property rather than a failure mode. By replacing binary correctness with a probabilistic assurance framework and introducing a tamper-evident Historical Reality Dossier (HRD), this architecture makes observer-execution coupling explicit, measurable, and mathematically bounded under adversarial conditions.