Devices today use TEE for highly sensitive processes; for example, mobile devices for FaceID/fingerprints and Ledger wallets for private key storage. When combined with blockchain, TEEs present a way for smart devices to hold their own DID + private key, verifiably sign/submit transactions, and interact peer-to-peer with other users and devices on the blockchain. IoTeX is pioneering this concept of blockchain + TEE in multiple form factors, including edge devices (e.g., Arm TrustZone) and confidential computing servers (e.g., Intel SGX), with the goal of empowering the first decentralized machines that can participate autonomously in the Internet of Trusted Things.