The first workshop on Blockchain and Distributed Ledger will be held in conjunction with the
Blockchain technologies have been gaining massive momentum in the last few years. Blockchains are distributed ledgers that enable parties who do not fully trust each other to maintain a set of global states. The parties agree on the existence, values, and histories of the states. As the technology landscape is expanding rapidly, it is both important and challenging to have a firm grasp of what the core technologies have to offer, especially with respect to their data processing capabilities. On the contrary, the research on distributed databases is in a steady progress since a half century ago. Both systems operate as data management platforms, but with different targets and focus. The workshop aims to provide a venue for developers, practitioners, and researchers with different backgrounds to discuss how the unique properties of blockchain and distributed ledger will benefit current and future applications, what the challenges are, and what the future blockchain should look like given the downturn of ICO market and cryptocurrency values.