The narrative of AI and blockchain converging has circulated in boardrooms and whitepapers for years, mostly as aspiration. In early 2026, it has become infrastructure. Autonomous AI agents — software systems that plan, execute tasks, spend funds, and coordinate with other agents without continuous human direction — are beginning to require what blockchain was always theoretically built to provide: verifiable identity, programmable payment rails, tamper-proof data, and decentralized execution...