NIC (No net interconnection) is a blockchain-based underlying protocol of the Internet of Things, which allows smartphones and vehicle-mounted devices to connect to each other without going through the Internet. NIC has a built-in blockchain light node, and based on Raiden network expansion, NIC will enable off-network micropayments to be realized for the first time. The NIC and the Internet complement each other and will carry a large amount of local traffic in the future, becoming the most optimized universal connection. The NIC third-party ecology will effectively solve the problems of information security and network congestion.