Blockchain - the technology behind Bitcoin - is flourishing into an impressive spectrum of research projects and initiatives, corporate alliances, and startup companies. This multidisciplinary effort spans diverse disciplines ranging from Computer Science and Engineering to Communications, Social Sciences, Public Policy, Banking and Finance, Journalism, and Political Sciences to name a few. Database researchers have been involved in an impressive body of blockchain research. This one-day event strives to bring researchers and practitioners of blockchain together to share and exchange results. We are interested in papers and presentations on a broad range of topics including:

• Decentralized data management using blockchains
• Applications of blockchain in data management
• Distributed transaction processing
• Data privacy and confidentiality in blockchains
• Partitioned and replicated data stores for blockchain
• Blockchain for social networking
• Distributed systems for blockchain
• Machine learning for blockchains
• Blockchain consensus protocols
• Proof of * systems
• Governance and blockchain
• Software engineering practices and life cycle management of blockchain
• Social and econonomic aspects of blockchain
• Game theory and its applications to blockchain
• Blockchain protocol analysis and security
• Algorithm design, complexity analysis, implementation for blockchain
• Energy consumption of blockchains
• Smart contracts
• Custody and decentralized identity solutions