General chain (General chain, hereinafter referred to as GC), its birth is a great move, breaking through the barriers of region, language, race, culture, currency and even time difference, in order to realize the shared chain of global trade. Improve and upgrade the existing blockchain decentralized global trade ledger, which is more authentic, more efficient, and more convenient to record commodity searches (quality witness), trade contracts (smart contracts), digital assets (clearing, handling fees), delivery (Internet of Things, logistics) and other trade processes have entered the next-generation "Internet of Value" characterized by blockchain, and the ultimate mission is to realize the global application of "everyone for one, and one for everyone."