[ Please distribute, apologies for multiple postings. ]========================================================================3rd International Workshop on Formal Methods for Blockchains (FMBC) 2021 - First Callhttps://fmbc.gitlab.io/2021July 18 or 19 (TBA), 2021Co-located with the 33nd International Conference on Computer-Aided Verification (CAV 2021)http://i-cav.org/2021/------------------------------------------------------... DATES--------------------------------Abstract submission: April 22, 2021Full paper submission: April 29, 2021Notification: June 10, 2021Camera-ready: July 8, 2021Workshop: July 18 or 19 (TBA), 2021Deadlines are Anywhere on Earth:https://en.wikipedia.org/wiki/Anywhere_on_Earth-----------------------------... OF INTEREST--------------------------------Blockchains are decentralized transactional ledgers that rely oncryptographic hash functions for guaranteeing the integrity of thestored data. Participants on the network reach agreement on what validtransactions are through consensus algorithms.Blockchains may also provide support for Smart Contracts. SmartContracts are scripts of an ad-hoc programming language that arestored in the Blockchain and that run on the network. They caninteract with the ledger’s data and update its state. These scriptscan express the logic of possibly complex contracts between users ofthe Blockchain. Thus, Smart Contracts can facilitate the economicactivity of Blockchain participants.With the emergence and increasing popularity of cryptocurrencies suchas Bitcoin and Ethereum, it is now of utmost importance to have strongguarantees of the behavior of Blockchain software.These guarantees can be brought by using Formal Methods. Indeed,Blockchain software encompasses many topics of computer science whereusing Formal Methods techniques and tools are relevant: consensusalgorithms to ensure the liveness and the security of the data on thechain, programming languages specifically designed to write SmartContracts, cryptographic protocols, such as zero-knowledge proofs,used to ensure privacy, etc.This workshop is a forum to identify theoretical and practicalapproaches of formal methods for Blockchain technology. Topicsinclude, but are not limited to:* Formal models of Blockchain applications or concepts* Formal methods for consensus protocols* Formal methods for Blockchain-specific cryptographic primitives or protocols* Design and implementation of Smart Contract languages* Verification of Smart Contracts----------------------------------------------------------------SUBMISSION--------------------------------Submit original manuscripts (not published or considered elsewhere)with a page limit of 12 pages for full papers and 6 pages for shortpapers (excluding bibliography and short appendix of up to 5additional pages).Alternatively you may also submit an extended abstract of up to 3pages (including bibliography) summarizing your ongoing work in thearea of formal methods and blockchain. Authors of selectedextended-abstracts are invited to give a short lightning talk.Submission link: https://easychair.org/conferences/?conf=fmbc2021Authors are encouraged to use LaTeX and prepare their submissionsaccording to the instructions and styling guides for OASIcs providedby Dagstuhl.Instructions for authors: https://submission.dagstuhl.de/documentation/authors#oasicsAt least one author of an accepted paper is expected to present thepaper at the workshop as a registered participant.----------------------------------------------------------------PROCEEDINGS--------------------------------All submissions will be peer-reviewed by at least three members of theprogram committee for quality and relevance. Accepted regular papers(full and short papers) will be included in the workshop proceedings,published as a volume of the OpenAccess Series in Informatics (OASIcs)by Dagstuhl.----------------------------------------------------------------INVITED SPEAKER--------------------------------To be confirmed----------------------------------------------------------------PROGRAM COMMITTEE--------------------------------PC CO-CHAIRS* Bruno Bernardo (Nomadic Labs, France) (bruno@nomadic-labs.com)* Diego Marmsoler (University of Exeter, UK) (D.Marmsoler@exeter.ac.uk)PC MEMBERSTo be confirmed