UBC is an open network (Open Web) for a shared and mutual assistance industry built upon blockchain, smart contracts, sharding technology, and artificial intelligence. It creates a platform for personal value sharing and mutual assistance under the rules of a free market economy. By integrating blockchain, smart contracts, sharding technology, and AI, it allows every individual (or organization) to bring their unique attributes and value tags to the platform. Users can share their own values to help others meet their needs, thereby creating value. This achieves shared value and mutual benefits for all.