Abstract
The rise of popular cryptocurrencies like Bitcoin and Ethereum has increased the popularity of blockchain technology, the framework these cryptocurrencies are built upon. The security and access control that blockchain technology has provided for cryptocurrencies has peaked the curiosity of other industries, realizing its potential value and future outlook. In this paper, we analyze two types of blockchains, permission-ed and permission-less, and introduce a two-tier blockchain concept utilizing both types for secure data sharing. We provide background on the consensus algorithms used for each blockchain type, Proof-of-Work and Proof-of-Authority. Testing on both Mac OS and Ubuntu Linux-based system environments, preliminary results show that by increasing the number of miners in a Proof-of-Work consensus, there is a correlating increase in the total block count in a permission-less blockchain, where the rate of increase is dependent on the system environment. In the Proof-of-Authority permission-ed blockchain, the block count observed little to no change across both environments.
Published Version
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