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Pruneable sharding-based blockchain protocol
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DOI：10.1007/s12083-018-0685-6.png)
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Abstract
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As a distributed ledger technology, the block-chain has gained much attention from both the industrical and academical fields, but most of the existing blockchain protocols still have the cubical dilatation problem. Although the latest Rollerchain has mitigated this issue by changing the blockheader's contents, the low efficiency, severe capacity expansion and non-scalability problems still hinder the adoption of Rollerchain in practice. To this end, we present the pruneable sharding-based blockchain protocol by utilizing the sharding technique and PBFT(Practical Byzantine Fault Tolerance) algorithm in the improved Rollerchain, which has high efficiency, slow cubical dilatation, small capacity expansion and high scalability. Moreover, the pruneable sharding-based blockchain protocol is certifiably secure and scalable. The experimental results show the protocol has good performance.
Keywords:
Cubical dilatation
Efficiency
Capacity expansion
Scalability
Sharding technique
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