VChain: A Blockchain System Ensuring Query Integrity

Haixin Wang, Cheng Xu, Ce Zhang, Jianliang XU

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

This demonstration presents vChain, a blockchain system that ensures query integrity. With the proliferation of blockchain applications and services, there has been an increasing demand for querying the data stored in a blockchain database. However, existing solutions either are at the risk of losing query integrity, or require users to maintain a full copy of the blockchain database. In comparison, by employing a novel verifiable query processing framework, vChain enables a lightweight user to authenticate the query results returned from a potentially untrusted service provider. We demonstrate its verifiable query operations, usability, and performance with visualization for better insights. We also showcase how users can detect falsified results in the case that the service provider is compromised.

Original languageEnglish
Title of host publicationSIGMOD 2020 - Proceedings of the 2020 ACM SIGMOD International Conference on Management of Data
PublisherAssociation for Computing Machinery
Pages2693-2696
Number of pages4
ISBN (Electronic)9781450367356
DOIs
Publication statusPublished - 14 Jun 2020
Event2020 ACM SIGMOD International Conference on Management of Data, SIGMOD 2020 - Portland, United States
Duration: 14 Jun 202019 Jun 2020

Publication series

NameProceedings of the ACM SIGMOD International Conference on Management of Data
ISSN (Print)0730-8078

Conference

Conference2020 ACM SIGMOD International Conference on Management of Data, SIGMOD 2020
Country/TerritoryUnited States
CityPortland
Period14/06/2019/06/20

Scopus Subject Areas

  • Software
  • Information Systems

User-Defined Keywords

  • blockchain
  • data integrity
  • query processing

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