Abstract The blockchain technology enabled cryptocurrencies and a lot of other applications that trust is needed among different entities. Because every blockchain client needs to keep huge amount of blockchain data, some personal computers and mobile devices cannot be used to run blockchain clients. To make things worse, the size of blockchain data is always increasing. In this paper, a new kind of blockchain system, Dewblock, is introduced. In this system, a blockchain client does not need to keep the blockchain data and it also has the features of a blockchain full node. Dewblock was developed based on dew computing principles and the cloud-dew architecture. A node connection protocol, Pair Connection Protocol, was proposed, which could be used in similar cloud-dew applications.
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