id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-186764-qp4kq139	Klopfenstein, Lorenz Cuno	Digital Ariadne: Citizen Empowerment for Epidemic Control	2020-04-16		.txt	text/plain	3110	139	44	In this paper, we outline general requirements and design principles of personal applications for epidemic containment running on common smartphones, and we present a tool, called 'diAry' or 'digital Ariadne', based on voluntary location and Bluetooth tracking on personal devices, supporting a distributed query system that enables fully anonymous, privacy-preserving contact tracing. The proposed system allows individuals to keep track of movements and contacts on their own private devices and to use local traces to select relevant notifications and alerts from health authorities, thus completely eschewing, by design, any risk of surveillance. The system is composed of: a mobile application, that is voluntarily installed by users on their smartphones, keeping track of their locations through the device's GPS sensor and interactions with other users through Bluetooth radio beacons, a privacy-aware reward system, which incentivizes app usage while collecting anonymous usage information to feed an open data set, and a distributed query system that allows recognized public authorities to selectively and anonymously notify users about possible contagion sources.	./cache/cord-186764-qp4kq139.txt	./txt/cord-186764-qp4kq139.txt