DP-3T - Open Protocol Contact Tracking via Bluetooth

Decentralized Privacy-Preserving Proximity Tracing ( DP-3T ) is another blueprint for tracking contacts using Bluetooth to prevent the spread of the SARS-CoV-2 coronavirus.

The protocol was developed by the international scientific community and announced in early April, two weeks earlier than the Apple & Google protocol, but detailed specifications and source code appeared only recently. The governments of Switzerland , Austria and Estonia have announced that they will use the DP-3T SDK to track contacts in their applications.

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