@inproceedings{929ef079fac54cfeb8b42fad5673b87d,
title = "VChain: A Blockchain System Ensuring Query Integrity",
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.",
keywords = "blockchain, data integrity, query processing",
author = "Haixin Wang and Cheng Xu and Ce Zhang and Jianliang Xu",
note = "Funding Information: This work is supported by Research Grants Council of Hong Kong under GRF Projects 12201018 & 12200819 and CRF Project C1008-16G.; ACM SIGMOD International Conference on Management of Data, SIGMOD 2020 ; Conference date: 14-06-2020 Through 19-06-2020",
year = "2020",
month = jun,
day = "14",
doi = "10.1145/3318464.3384682",
language = "English",
series = "Proceedings of the ACM SIGMOD International Conference on Management of Data",
publisher = "Association for Computing Machinery (ACM)",
pages = "2693--2696",
booktitle = "SIGMOD 2020 - Proceedings of the 2020 ACM SIGMOD International Conference on Management of Data",
address = "United States",
}