Four platforms, four identity systems. Who writes the shared record?

The scene this week In the span of 48 hours in late April 2026, four of the largest enterprise AI providers announced the same thing from different angles. Each launched a governance plane for agents running inside its own cloud. Each introduced some form of per-agent cryptographic identity. Each promised the ability to trace what an agent did, when, and with what scope. Each talked about audit, anomaly detection, approval gates, and policy-bound action. The phrasing varied. The structure did no