Abstract
Given the heavy economic losses and threats to human health caused by COVID-19 worldwide, as well as the privacy concerns from existing contact tracing technologies, we developed a novel contact tracing mobile application BeepTrace based on blockchain, targeted at mitigating the pandemic and easing the privacy concerns of contact tracing. The app features dual-mode, where the passive mode uses GPS, and the active mode with Bluetooth Low Energy (BLE) technology to solve contact information respectively. Thanks to blockchain technology, it solves third-party trust concerns and opens up anonymous data sharing for COVID-19 protection and beyond by adopting BeepTrace approach as an open platform of health/disease tracing data. At present, we have released the alpha version of the app with the preliminary realization of relevant functions. We believe this application will have significant implications for the global response to the pandemic of and beyond COVID-19.
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