TeX is the next generation of the IoT-oriented blockchain platform with vast scalability, privacy, isolatability, and developability for incubating new IoT applications and ecosystems. Connecting the physical world, block by block. IoT has rapidly evolved over the years, but lacks real “killer applications”. McKinsey predicted that IoT could generate up to $11.1 trillion per year in economic value by 2025. Despite the potential of IoT, there are roadblocks ahead: lack of scalability, privacy concerns, and lack of functional values. IoTeX solves these problems by introducing a blockchain-in-blockchain architecture with token economy. By combining token incentives with community efforts, we believe we can crowdsource industry and community talents to address these technical challenges in IoT development. At the highest level, we have four main innovations: 1. Blockchain-in-blockchain architecture which ensures privacy and prevents IoT information leakage; 2. Built-in privacy based on lightweight cryptography; 3. Real-time consensus with instant finality, which improves the throughput of the network, and reduces transactional cost, and boosts efficient cross-blockchain communication; 4. Subchain-as-a-service (SAAS) to facilitate fast prototyping and production of new IoT applications and ecosystems.