Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Segment blockchain: a size reduced storage mechanism for blockchain

Xu, Yibin and Huang, Yangyu 2020. Segment blockchain: a size reduced storage mechanism for blockchain. IEEE Access 8 , pp. 17434-17441. 10.1109/ACCESS.2020.2966464

PDF - Published Version
Available under License Creative Commons Attribution.

Download (6MB) | Preview


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.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Computer Science & Informatics
Subjects: Q Science > QA Mathematics > QA76 Computer software
Publisher: IEEE
ISSN: 2169-3536
Related URLs:
Date of First Compliant Deposit: 25 March 2020
Date of Acceptance: 5 January 2020
Last Modified: 20 Mar 2021 02:33

Citation Data

Cited 2 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics