We present a new fault-tolerant distributed state machine to inherit the best features of its “parents in spirit”: Paxos, providing strong consistency, and a blockchain, providing simplicity and availability. Our proposal is simple as it does not include any heavy weight distributed failure handling protocols such as leader election. In addition, our proposal has a few other valuable features, e.g., it is responsive, it scales well, and it does not send any overhead messages.
@InProceedings{burchert_et_al:LIPIcs.OPODIS.2017.2, author = {Burchert, Conrad and Wattenhofer, Roger}, title = {{piChain: When a Blockchain meets Paxos}}, booktitle = {21st International Conference on Principles of Distributed Systems (OPODIS 2017)}, pages = {2:1--2:13}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-061-3}, ISSN = {1868-8969}, year = {2018}, volume = {95}, editor = {Aspnes, James and Bessani, Alysson and Felber, Pascal and Leit\~{a}o, Jo\~{a}o}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.OPODIS.2017.2}, URN = {urn:nbn:de:0030-drops-86543}, doi = {10.4230/LIPIcs.OPODIS.2017.2}, annote = {Keywords: Consensus, Crash Failures, Availability, Network Partition, Consistency} }
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