Bitcoin and Blockchain: History and Current Applications

Dr. Sandeep Kumar Panda is currently working as an Associate Professor in Department of Computer Science and Engineering, Faculty of Science and Technology at ICFAI Foundation for Higher Education (deemed to be University), Hyderabad, Telangana, INDIA. His research interests include Software Engineering, Web Engineering, Cryptography & Security, Blockchain Technology, Internet of Things and Cloud Computing. He has published many papers in international journals and in international conferences in repute. He received "Research and Innovation of the Year Award" hosted by WIEF and EduSkills under the Banner of MSME, Govt. of INDIA and DST, Govt. of INDIA at New Delhi on January 2020. He has Eight Indian Patents in his credit. His professional affiliations are MIEEE, MACM and LMIAENG.

Dr. Ahmed A. Elngar, He is Assistant Professor of Computer Science, Chair of Scientific Innovation Research Group (SIRG) Director of Technological and Informatics Studies Center Managing Editor of Journal of Cybersecurity and Information Management (JCIM), Beni-Suef University, Faculty of Computers & Artificial Intelligence, Egypt. Dr. Elngar is the Founder and Head of Scientific Innovation Research Group (SIRG) and Assistant Professor of Computer Science at the Faculty of Computers and Information, Beni-Suef University. Dr. Elngar is a Director of the Technological and Informatics Studies Center (TISC), Faculty of Computers and Information, Beni-Suef University. He is a Managing Editor: Journal of Cybersecurity and Information Management (JCIM) Dr. Elngar has more than 25 scientific research papers published in prestigious international journals and over 5 books covering such diverse topics as data mining, intelligent systems, social networks and smart environment. Research works and publications. Dr. Elngar is a collaborative researcher He is a member in Egyptian Mathematical Society (EMS) and International Rough Set Society (IRSS). His other research areas include Internet of Things (IoT), Network Security, Intrusion Detection, Machine Learning, Data Mining, Artificial Intelligence. Big Data, Authentication, Cryptology, Healthcare Systems, Automation Systems. He is an Editor and Reviewer of many international journal around the world. Dr. Elngar won several awards including the "Young Researcher in Computer Science Engineering", from Global Outreach Education Summit and Awards 2019, on 31 January 2019 (Thursday) at Delhi, India. Also, he awards "Best Young Researcher Award (Male) (Below 40 years) ", Global Education and Corporate Leadership Awards (GECL-2018), Plot No-8, Shivaji Park, Alwar, Rajasthan-301001, India. Also, He have an Intellectual Property Rights called "ElDahshan Authentication Protocol", Information Technology Industry Development Agency (ITIDA), Technical Report, 2016. Dr. Elngar great many activities in community and the environment service include organizing 12 workshops hosted by a large number of universities in almost all governorates of Egypt. He has addition to a workshop on Smartphone's techniques and their role in the development of visually impaired skills in various walks of life.

Prof. Valentina E. Balas is currently Full Professor in the Department of Automatics and Applied Software at the Faculty of Engineering, "Aurel Vlaicu" University of Arad, Romania. She holds a Ph.D. in Applied Electronics and Telecommunications from Polytechnic University of Timisoara. Dr. Balas is author of more than 300 research papers in refereed journals and International Conferences. Her research interests are in Intelligent Systems, Fuzzy Control, Soft Computing, Smart Sensors, Information Fusion, Modeling and Simulation. She is the Editor-in Chief to International Journal of Advanced Intelligence Paradigms (IJAIP) and to International Journal of Computational Systems Engineering (IJCSysE), member in Editorial Board member of several national and international journals and is evaluator expert for national, international projects and PhD Thesis. Dr. Balas is the director of Intelligent Systems Research Centre in Aurel Vlaicu University of Arad and Director of the Department of International Relations, Programs and Projects in the same university. She served as General Chair of the International Workshop Soft Computing and Applications (SOFA) in eight editions 2005-2018 held in Romania and Hungary. Dr. Balas participated in many international conferences as Organizer, Honorary Chair, Session Chair and member in Steering, Advisory or International Program Committees. She is a member of EUSFLAT, SIAM and a Senior Member IEEE, member in TC - Fuzzy Systems (IEEE CIS), member in TC - Emergent Technologies (IEEE CIS), member in TC - Soft Computing (IEEE SMCS). Dr. Balas was past Vice-president (Awards) of IFSA International Fuzzy Systems Association Council (2013-2015) and is a Joint Secretary of the Governing Council of Forum for Interdisciplinary Mathematics (FIM), - A Multidisciplinary Academic Body, India. She is also director of the Department of International Relations, Programs and Projects and head of the Intelligent Systems Research Centre in Aurel Vlaicu University of Arad, Romania.

Dr. Mohammed Kayed received the M.Sc. degree in Computer Science from Minia University, Minia, Egypt, in 2002 and the Ph.D. degree in Computer Science from Beni-Suef University, Beni-Suef, Egypt, in 2007. From 2005 to 2006, he was a Research&Teaching Assistant in Department of Computer Science and Information Engineering at the National Central University, Taiwan. Since 2007, he has been an Assistant Professor with Math&CS Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt. He is currently an Associate Professor and Head of Computer Science Department, Faculty of Computer and Artificial Intelligence, Beni-Suef University, Egypt. He is the author of more than 18 articles. His research interests include Web mining, Opinion Mining, Informarion Extraction and information retrieval.