@inproceedings{6485ed4dfe4a4e309e0dc6b736abd9d0,
title = "PrisM: Deconstructing the blockchain to approach physical limits",
abstract = "The concept of a blockchain was invented by Satoshi Nakamoto to maintain a distributed ledger. In addition to its security, important performance measures of a blockchain protocol are its transaction throughput and confirmation latency. In a decentralized setting, these measures are limited by two underlying physical network attributes: communication capacity and speed-of-light propagation delay. In this work we introduce Prism, a new proof-of-work blockchain protocol, which can achieve 1) security against up to 50% adversarial hashing power; 2) optimal throughput up to the capacity C of the network; 3) confirmation latency for honest transactions proportional to the propagation delay D, with confirmation error probability exponentially small in the bandwidth-delay product CD; 4) eventual total ordering of all transactions. Our approach to the design of this protocol is based on deconstructing Nakamoto's blockchain into its basic functionalities and systematically scaling up these functionalities to approach their physical limits.",
author = "Vivek Bagaria and Sreeram Kannan and David Tse and Giulia Fanti and Pramod Viswanath",
note = "Publisher Copyright: {\textcopyright} 2019 Association for Computing Machinery.; 26th ACM SIGSAC Conference on Computer and Communications Security, CCS 2019 ; Conference date: 11-11-2019 Through 15-11-2019",
year = "2019",
month = nov,
day = "6",
doi = "10.1145/3319535.3363213",
language = "English (US)",
series = "Proceedings of the ACM Conference on Computer and Communications Security",
publisher = "Association for Computing Machinery",
pages = "585--602",
booktitle = "CCS 2019 - Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security",
address = "United States",
}