Indeed, TFA appears to link to one or more protocol specifications [0],[1]. However, it is not clear if these are proper/true Scotsman protocol specifications.

Indeed, TFA appears to link to one or more protocol specifications [0],[1]. However, it is not clear if these are proper/true Scotsman protocol specifications. [0] https://github.com/DP-3T/documents https://github.com/DP-3T/documents [1] https://github.com/TCNCoalition/TCN https://github.com/TCNCoalition/TCN