The design (bluetooth broadcast, temporary hash/tracer keys, & DB with timestamped 'positive' keys) are the major pieces I would expect for this solution, but with the Apple+Google partnership for Covid contact tracing (announced April ~10) what features/technology, in your opinion, could they be bringing to their solution? (Besides their heft of possibly being able to 'push' this feature/app into their phones.)

(Thank you for the succinct README. Still boggles my mind when these are not written well.)