Segment Blockchain: A Size Reduced Storage Mechanism for Blockchain

【Author】 Xu, Yibin; Huang, Yangyu

【Source】IEEE ACCESS

【影响因子】3.476

【Abstract】The exponential growth of the blockchain size has become a major contributing factor that hinders the decentralisation of blockchain and its potential implementations in data-heavy applications. In this paper, we propose segment blockchain, an approach that segmentises blockchain and enables nodes to only store a copy of one blockchain segment. We use PoW as a membership threshold to limit the number of nodes taken by an Adversary-the Adversary can only gain at most n/2 of nodes in a network of n nodes when it has 50% of the calculation power in the system (the Nakamoto blockchain security threshold). A segment blockchain system fails when an Adversary stores all copies of a segment, because the Adversary can then leave the system, causing a permanent loss of the segment. We theoretically prove that segment blockchain can sustain a (AD/n)(m) failure probability when the Adversary has no more than AD number of nodes and every segment is stored by m number of nodes. The storage requirement is mostly shrunken compared to the traditional design and therefore making the blockchain more suitable for data-heavy applications.

【Keywords】Distributed processing; edge computing; content distribution networks; distributed management; blockchain; blockchain storage

【发表时间】2020

【收录时间】2022-01-02

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