Summary
International Conference on Emerging Technologies for Communications
2022
Session Number:O2
Session:
Number:O2-1
Reduction methods of the amount of data in blockchain node
Masaki Obayashi, Takeshi Ogawa,
pp.-
Publication Date:2022/11/29
Online ISSN:2188-5079
Summary:
The amount of data that a node in a blockchain needs to store is increasing rapidly in proportion to the total number of transactions processed by the blockchain. As the number of data increases, it may be difficult to keep participating in the blockchain because of its storage capacity. If the number of n¬odes in a blockchain network decrease, serious problems such as unstable consensus formation in the blockchain will arise. In this paper, novel reduction methods of the amount of data in blockchain nodes are proposed. In the proposed methods, a blockchain is divided into block groups forming a block-group chain. Each node stores only the latest blocks and block-group-chain information and some block-groups. As the result, the amount of data on the node can be significantly reduced compared to the conventional methods. It is also shown that the proposed method can significantly reduce the amount of data for both full nodes and light nodes.