As a promising technique to achieve decentralized consensus, blockchain has been successfully applied into digital currency - bitcoin for serving as a public ledger for transactions. Its secure design for supporting a distributed computing system with high Byzantine fault tolerance is attracting wide attention all over the world. Blockchain has a great potential for event recording, identity management, fault provenance, behaviour tracking, and so on, especially in a distributed system without a trusted authority or central server. On one hand, blockchain will play an important role for secure decentralization in such emerging fields as Internet of Things, Cyber Physical Systems, edge computing, social networking, crowdsourcing and next generation wireless communications, and even more other fields. On the other hand, its advance should be further evolved in terms of scalability, privacy, efficiency, flexibility and high dependability.

The 2019 IEEE International Conference on Blockchain (Blockchain-2019) will provide a high-profile, leading-edge forum for researchers, engineers, and practitioners to present latest advances and innovations in key theories, infrastructure, schemes, and significant applications for the blockchain, as well as to identify emerging research topics and define the future.

The emergence and popularity of blockchain techniques will significantly change the way of digital system operation and management. In the meantime, the application of blockchain will exhibit a variety of complicated problems and new requirements, which brings more open issues and challenges for research communities.

IEEE Blockchain-2019 will be held on July 14 - July 17, 2019, in Atlanta, USA. The goal of this conference is to promote community-wide discussion identifying the advanced applications, technologies and theories for blockchain. We seek submissions of papers that invent novel techniques, investigate new applications, introduce advanced methodologies, propose promising research directions and discuss approaches for unsolved issues.

Topics of interest include, but are not limited to:

Theories of blockchain and its evolution
Smart contract and distributed ledger
Blockchain and Bitcoin security
Distributed consensus and fault tolerance mechanisms
Blockchain schemes for decentralization
Security, privacy and trust of blockchain and decentralized schemes
Performance optimization of blockchain and decentralized schemes
Applications with blockchain technique
Lightweight protocols and algorithms based on blockchain
Blockchain based lightweight data structures for IoT data
Blockchain based IoT security solutions
Blockchain in cyber physical systems
Blockchain in social networking
Bolckchain in crowdsourcing and crowdsensing
Blockchain in 5G
Blockchain in edge and cloud computing
ŸBlockchain and trust managements
Attacks on blockchain based systems