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Title: OHIE: Blockchain scaling made simple
Authors: H. Yu 
R. Hou 
Ivica Nikolic 
Prateek Saxena 
Issue Date: May-2020
Publisher: Institute of Electrical and Electronics Engineers Inc.
Citation: H. Yu, R. Hou, Ivica Nikolic, Prateek Saxena (2020-05). OHIE: Blockchain scaling made simple. Proceedings - IEEE Symposium on Security and Privacy 2020-May : 90 - 105. ScholarBank@NUS Repository.
Abstract: Many blockchain consensus protocols have been proposed recently to scale the throughput of a blockchain with available bandwidth. However, these protocols are becoming increasingly complex, making it more and more difficult to produce proofs of their security guarantees. We propose a novel permissionless blockchain protocol OHIE which explicitly aims for simplicity. OHIE composes as many parallel instances of Bitcoin's original (and simple) backbone protocol as needed to achieve excellent throughput. We formally prove the safety and liveness properties of OHIE. We demonstrate its performance with a prototype implementation and large-scale experiments with up to 50,000 nodes. In our experiments, OHIE achieves linear scaling with available bandwidth, providing about 4-10Mbps transaction throughput (under 8-20Mbps per-node available bandwidth configurations) and at least about 20x better decentralization over prior works.
Source Title: Proceedings - IEEE Symposium on Security and Privacy
ISBN: 9781728134970
ISSN: 10816011
DOI: 10.1109/SP40000.2020.00008
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