Presentation 2020-03-16
Blockchain-based Trading Log Storing Technology for Reliable Data Trade
Jun Nakajima, Yoji Ozawa, Zhihui Lu, Jie Wu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Data trading services, which connect data providing companies and data utilization companies and support corporate growth through data distribution, are attracting attention, while many companies are reluctant to data trading. Many of the current data trading services rely on the trust of the data trading service provider, and it is important to ensure the transparency of the transaction process. Blockchain is attracting attention as a promising technology for solving this kind of problem. When blockchain was applied to the management of transaction log to solve the above problem, it was found that the throughput required for data transaction in actual service was not obtained. Therefore, we proposed a method to reduce the time required for storing transaction logs by integrating and executing multiple transaction log storage requests, and developed and evaluated a blockchain-based transaction log storage technology that applied the proposed method. In the evaluation, it was confirmed that the transaction log storage in the blockchain could be completed without being proportional to the number of requests, indicating the feasibility of a data transaction service that secured the transparency of the transaction process.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) blockchain / data trading / queuing / log storing
Paper # SC2019-50
Date of Issue 2020-03-09 (SC)

Conference Information
Committee SC
Conference Date 2020/3/16(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Hitachi Central Research Laboratory
Topics (in Japanese) (See Japanese page)
Topics (in English) 【Online Conference】 Machine Learning Systems Engineering and Service Computing, etc.
Chair Masahide Nakamura(Kobe Univ.)
Vice Chair Shinji Kikuchi(NIMS) / Yoji Yamato(NTT)
Secretary Shinji Kikuchi(Tokyo Univ. of Tech.) / Yoji Yamato(Fujitsu Lab.)
Assistant

Paper Information
Registration To Technical Committee on Service Computing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Blockchain-based Trading Log Storing Technology for Reliable Data Trade
Sub Title (in English)
Keyword(1) blockchain
Keyword(2) data trading
Keyword(3) queuing
Keyword(4) log storing
1st Author's Name Jun Nakajima
1st Author's Affiliation Hitachi Ltd.(Hitachi)
2nd Author's Name Yoji Ozawa
2nd Author's Affiliation Hitachi Ltd.(Hitachi)
3rd Author's Name Zhihui Lu
3rd Author's Affiliation Fudan University(Fudan Univ.)
4th Author's Name Jie Wu
4th Author's Affiliation Fudan University(Fudan Univ.)
Date 2020-03-16
Paper # SC2019-50
Volume (vol) vol.119
Number (no) SC-482
Page pp.pp.97-102(SC),
#Pages 6
Date of Issue 2020-03-09 (SC)