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DTSTART:19700329T030000
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BEGIN:VEVENT
CREATED:20221110T114238Z
LAST-MODIFIED:20221110T114238Z
DTSTAMP:20260307T235633Z
UID:1772920593@tuc.gr
SUMMARY:Ομιλία του Νίκου Λεονάρδου "Bitcoin'
 s Properties and the Consensus Probl
 em"
LOCATION:
DESCRIPTION:https://www.ece.tuc.gr/el/katalogos-
 ekdiloseon?tx_tucevents2_tuceventsdi
 splay%5Baction%5D=show&tx_tucevents2
 _tuceventsdisplay%5Bcontroller%5D=Ev
 ent&tx_tucevents2_tuceventsdisplay%5
 Bevent%5D=5884&cHash=b5c559117e32d53
 809d6b138ed61d66d\nAbstract\n Bitcoi
 n is the first decentralized cryptoc
 urrency. Its main innovation is the 
 blockchain and the way that this dat
 a structure is maintained in a distr
 ibuted manner by those that particip
 ate in the Bitcoin network. Bitcoin 
 was not only an innovative solution 
 to an open problem, the problem of i
 mplementing a decentralized transact
 ion ledger, but also a fresh solutio
 n to an old, fundamental, and well-s
 tudied problem in distributed comput
 ing, the problem of consensus. Under
 standing and analyzing Bitcoin's cor
 e protocol, the Bitcoin backbone, en
 tails formally defining several noti
 ons: (1) a model in which a solution
  to the problem can described, (2) t
 he properties that a suggested solut
 ion should satisfy, (3) proof that B
 itcoin's backbone protocol indeed ha
 s the desired properties. We will di
 scuss the above and also a proof tha
 t Bitcoin solves the consensus probl
 em.\n About the speaker\n Nikos Leon
 ardos is currently a post-doctoral r
 esearcher at the Department of Infor
 matics and Telecommunications of the
  University of Athens, Greece. Previ
 ously he was a postdoc at the Algori
 thms and Complexity group of Institu
 t de Recherche en Informatique Fonda
 mentale, Paris 7, France. He holds a
  PhD in computer science from Rutger
 s, the State University of New Jerse
 y (USA), MSc in Logic, Algorithms an
 d Computation (Greece), and BSc in M
 echanical Engineering from the Natio
 nal Technical University of Athens (
 Greece). He currently works on the f
 oundations of blockchain systems and
  the security of cryptocurrencies. H
 is research interests include topics
  of theoretical computer science, su
 ch as cryptography, distributed comp
 utation, randomized computation, com
 munication complexity, decision tree
  complexity, algorithms.\n
STATUS:CONFIRMED
ORGANIZER;RSVP=FALSE;CN=TUC;CUTYPE=TUC:mailto:webmaster@tuc.gr
DTSTART:20221111T090000
DTEND:20221111T101500
TRANSP:OPAQUE
CLASS:DEFAULT
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