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                         CALL FOR PAPERS
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                   5th International Workshop on
          Cryptocurrencies and Blockchain Technology - CBT 2021

		In conjunction with ESORICS 2021

                   http://www.cbtworkshop.org/

                        October 4-8, 2021

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IMPORTANT DATES
================

Deadlines:
 -- August 2, 2021 (Firm)

Notifications:
 -- August 30, 2021

Camera Ready:
 -- September 20, 2021

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===============
EVENT FORMAT
===============

As a satellite event of the ESORICS symposium, CBT will be organised
as a hybrid workshop: digitally with remote participation and talks
and physically with presence in Darmstadt. The health and safety of
the symposium participants is our number one priority hence the
digital part may be increased depending on the development of
COVID-19. This new format will not affect our proceedings, which will
be published as Springer LNCS proceedings.

=================
WORKSHOP HISTORY
=================

Since the appearance of Bitcoin in 2009, a plethora of new
cryptocurrencies and other blockchain based systems have been deployed
with different success. While some of them are slightly different
copies of Bitcoin, other ones propose interesting improvements or new
usages of the underlying blockchain technology. However, the novelty
of such technologies is often tied with rapid developments and
proof-of-concept software, and rigorous scientific analyses of the
proposed systems are often skipped.

This workshop aims to provide a forum for researchers in this area to
carefully analyze current systems and propose new ones in order to
create a scientific background for a solid development of new
cryptocurrencies and blockchain technology systems.

The main topics include (but are not limited to):

* Anonymity and privacy in cryptocurrencies.
* Privacy-preserving technologies.
* Cryptocurrency based trust systems.
* Security analysis of existing cryptocurrencies.
* Formal threat models in cryptocurrency systems.
* Improvement proposals for existing cryptocurrencies.
* P2P network cryptocurrencies analysis.
* Private transactions in blockchain based systems.
* Consensus mechanisms: proof-of-work, proof of stake,
  proof of burn, proof-of-useful-work.
* New usages of the blockchain technology.
* Scalability solutions for blockchain systems.
* Smart contracts.

===================
SUBMISSION DETAILS
===================

Regular and short papers must be original and not submitted for
publication elsewhere. Authors are invited to submit their manuscripts
following the LNCS Proceedings Manuscript style. Papers are limited to
16 pages (full papers), or 8 pages (short papers) including references
and appendices, and can be submitted as PDF via the CBT 2021 submission
site: https://easychair.org/conferences/?conf=cbt2021

*Double blind review*: CBT requires anonymized submissions -- please
make sure that submitted papers contain no author names or obvious
self-references.

Accepted regular papers will be published by Springer in the LNCS
collection. At least one author of each accepted paper is required to
register and present their work at the workshop; otherwise the paper
will not be included in the proceedings.

==================
PROGRAM COMMITEE
==================

PC Chairs:

* Joaquin Garcia-Alfaro, Institut Polytechnique de Paris
* Jose Luis Munoz-Tapia, Universitat Politecnica de Catalunya
* Guillermo Navarro-Arribas, Universitat Autonoma de Barcelona

PC Members:

* Shashank Agrawal - Western Digital Research (US)
* Daniel Augot - INRIA Saclay (France)
* Georgia Avarikioti - ETH Zurich (Switzerland)
* Spiridon Bakiras - Hamad Bin Khalifa University (Qatar)
* Iddo Bentov - Cornell Tech (USA)
* Alex Biryukov - University of Luxembourg (Luxembourg)
* George Bissias - University of Massachusetts at Amherst (US)
* Joseph Bonneau - NYU (USA)
* Karima Boudaoud - University of Nice (France)
* Jeremy Clark - Concordia University (Canada)
* Mauro Conti - University of Padua (Italy)
* Sanchari Das - University of Denver (US)
* Vanesa Daza - Universitat Pompeu Fabra (Spain)
* Matteo Dell'Amico - EURECOM (France)
* Sven Dietrich - City University of New York (US)
* Kaoutar Elkhiyaoui - EURECOM (France)
* Antonio Faonio - EURECOM (France)
* Esha Ghosh - Microsoft Research (US)
* Hannes Hartenstein - KIT (Germany)
* Ethan Heilman - Boston University (US)
* Ryan Henry - University of Calgary (Canada)
* Jordi Herrera-Joancomarti - Universitat Autonoma de Barcelona (Catalonia)
* Ghassan Karame - NEC Research (Germany)
* Jiasun Li - George Mason University (USA)
* Daniel Xiapu Luo - Hong Kong Polytechnic University (Hong Kong)
* Giorgia Marson - University of Bern (Switzerland)
* Shin'ichiro Matsuo - Georgetown University (USA)
* Pedro Moreno-Sanchez - IMDEA (Spain)
* Cristina Perez-Sola - UOC (Spain)
* Simon Oya - University of Waterloo (Canada)
* Elizabeth Quaglia - Royal Holloway, University of London (UK)
* Alfredo Rial - University of Luxembourg (Luxembourg)
* Alessandra Scafuro - North Carolina State University (US)
* Edgar Weippl - SBA Research (Austria)

It is expected that extended and revised version of the best papers
will be considered for international journal special issues.

Further details at http://www.cbtworkshop.org/