CPChain is a new distributed infrastructure for next generation Internet of Things (IoT). CPChain intends to build a fundamental data platform for IoT system in combination with distributed storage, encryption computation and blockchain technologies, providing the whole process solution from data acquisition, storage, sharing to application. CPChain is a promising solution to a series of challenges of current “chimney architecture” of IoT systems, reducing connectivity cost of devices, protecting data privacy and maximizing the value of IoT data.
DDK is a community platform that aims to create economic opportunities through the development of blockchain solutions. Since 2015, the DDK community claims to have contributed to a number of blockchain platforms.The DDK platform uses the Delegated Proof of Stake (DPoS) mechanism within its core. According to DDK, one of the advantages of a DPoS blockchain is that it depends on community members to participate in the maintenance and security of the platform so that each member’s participation provides benefit for all.