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title = {Analysis of the Blockchain Protocol in Asynchronous Networks},
booktitle = {Advances in Cryptology -- EUROCRYPT 2017},
year = {2017},
publisher = {Springer International Publishing},
address = {Cham},
pages = {643--673},
abstract = {Nakamoto's famous blockchain protocol enables achieving consensus in a so-called permissionless setting---anyone can join (or leave) the protocol execution, and the protocol instructions do not depend on the identities of the players. His ingenious protocol prevents ``sybil attacks'' (where an adversary spawns any number of new players) by relying on computational puzzles (a.k.a. ``moderately hard functions'') introduced by Dwork and Naor (Crypto'92).},