Print Email Facebook Twitter VAPOR Title VAPOR: A Value-Centric Blockchain that is Scale-out, Decentralized, and Flexible by Design Author Ren, Z. (TU Delft Cyber Security) Erkin, Z. (TU Delft Cyber Security) Contributor Goldberg, Ian (editor) Moore, Tyler (editor) Date 2019 Abstract Blockchains is a special type of distributed systems that operates in unsafe networks. In most blockchains, all nodes should reach consensus on all state transitions with Byzantine fault tolerant algorithms, which creates bottlenecks in performance. In this paper, we propose a new type of blockchains, namely Value-Centric Blockchains (VCBs), in which the states are specified as values (or more comprehensively, coins) with owners and the state transition records are then specified as proofs of the ownerships of individual values. We then formalize the “rational” assumptions that have been used in most blockchains. We further propose a VCB, VAPOR, that guarantees secure value transfers if all nodes are rational and keep the proofs of the values they owned, which is merely parts of the whole state transition record. As a result, we show that VAPOR enjoys significant benefits in throughput, decentralization, and flexibility without compromising security. Subject BlockchainConsensus algorithmDecentralizationDistributed ledgersScalability To reference this document use: http://resolver.tudelft.nl/uuid:95b97b64-7e8e-4418-b3f2-1cc21603d5cc DOI https://doi.org/10.1007/978-3-030-32101-7_29 Publisher Springer, Cham ISBN 978-3-030-32100-0 Source Financial Cryptography and Data Security: 23rd International Conference, FC 2019, Revised Selected Papers, 11598 Event 23rd International Conference on Financial Cryptography and Data Security, FC 2019, 2019-02-18 → 2019-02-22, St. Kitts, Saint Kitts and Nevis Series Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 0302-9743, 11598 Part of collection Institutional Repository Document type conference paper Rights © 2019 Z. Ren, Z. Erkin Files PDF VAPOR_a_Value_Centric_Blo ... Design.pdf 437.67 KB Close viewer /islandora/object/uuid:95b97b64-7e8e-4418-b3f2-1cc21603d5cc/datastream/OBJ/view