A privacy-preserving design for sharing demand-driven patient datasets over permissioned blockchains and P2P secure transfer

Sharing patient datasets curated by health institutions is critical for the advance of monitoring, surveillance and research. However, patient data is sensitive data and it can only be released under certain conditions and with previous explicit consent. Privacy preserving data sharing provides techniques to distribute datasets minimizing the risk of identification of patients. However, the sharing of datasets is typically done without considering the needs or requests of data consumers. Blockchain technologies provide an opportunity to gather those requests and share and assemble datasets using privacy-preserving methods as data and requirements on anonymity match. The architecture and design of such a solution is described, assuming an underlying permissioned blockchain network where providers such as healthcare institutions deal with consent, patient preferences and anonymity guarantees, playing a mediator role to a network of organizations

Findings from a qualitative study

Pinto Lopes, D., Rita, P., & Treiblmaier, H. (2021). The impact of blockchain on the aviation industry: Findings from a qualitative study. Research in Transportation Business and Management, 41(December), 1-12. [100669]. https://doi.org/10.1016/j.rtbm.2021.100669The aviation industry is searching for innovative solutions to boost its business in a sector that operates on a financial knife-edge driven by fierce competition. This paper seeks to identify how blockchain, an immutable and append-only data ledger, can impact the aviation industry. This study presents the results from 18 interviews with industry experts. Text mining and a thematic data analysis were combined to investigate the likelihood of the airline industry adopting a disruptive technology that has the potential to affect various stakeholders and replace current platforms. The connection between the key terms and emergent themes is visualised and discussed in detail. The current attitude as well as the expectations and uncertainties of the aviation industry towards blockchain are systematised. The five core topics determining the adoption of blockchain by the industry are specific adoption factors, the replacement of current centralised platforms, customer loyalty, adoption barriers and a general lack of awareness. All topics are discussed in detail, and concrete propositions for future academic research are put forward.authorsversionpublishe