SEC (Sevice chain, service chain) is a service chain native digital token developed by the Service technology team under Canada Star. The service chain (SEC) proposes a solution to the problem with a layered consensus stack technology, which can deploy a distributed system in a large network and attract more participants while maintaining high throughput and low latency. SEC intends to Build a hub for service application scenarios, and express the company's products and services in the form of digital tokens on the service chain, not only as information, but also as a manifestation of value.