Consortium blockchain is only for members of a particular group and limited third parties. Internally, some pre-elected nodes are designed as bookkeepers based on certain criteria, and the generation of each block is jointly decided by all pre-elected nodes. Other nodes access to consortium blockchain can participate in transaction but cannot intervene in the bookkeeping process, and other third parties can make limited inquiries via the open API of this blockchain. To obtain better performance, the consortium blockchain has specific requirements for the configuration and network environment of consensus or verification nodes. with an access mechanism, it is possible to improve transaction performance and to avoid problems caused by different participators.
At present, consortium blockchain is widely applied in bankings, insurance, securities, business associations, corporations and upstream&downstream enterprises. It is in the era of mobile Internet that blockchain has emerged in which the enterprises are generally closely related to the information technologies and Internet. Blockchain is conducive to further improving the efficiency in notary, settlement and clearing business, as well as the value exchange network in their industrial chain.
CUN includes 21 nodes and applies the PoA consensus with an access mechanism, which has some similarity with the consortium blockchain. But at the stage of “Cap of Good hope”, CUN will evolve to PoS mechanism to to fit the features of cooperative economy that are self-funded, self-governed and self-served.