The Observed AI Index is a public record of observable facts about AI systems in real-world use. No scoring. No ranking. No endorsement. Just a stable reference layer.
A registry layer for AI systems—like DNS is a registry layer for domains. It exists so researchers, journalists, regulators, and operators can cite the same referential ground truth.
Not a trust score. Not certification. Not compliance advice. Not opinions. Evaluation comes later, and only on top of recorded facts.