I don't really have a link. Taiwan uses triangulation to make sure you stay in place once you've been detected as someone who has been in contact.
Some places have digital access but in general the temperature measurement of bigger buildings are automated. But most places I went to had a paper form to fill out your details. I assume those are shared with law enforcement and CDC once one person who attended the building has been traced as a positive case and then all people and their contacts will be notified and tested.
There is no centralized government mandated central database that I know of. But I do know that once a crime happens they're quite good at tracing your public movements.
Some places have digital access but in general the temperature measurement of bigger buildings are automated. But most places I went to had a paper form to fill out your details. I assume those are shared with law enforcement and CDC once one person who attended the building has been traced as a positive case and then all people and their contacts will be notified and tested.
There is no centralized government mandated central database that I know of. But I do know that once a crime happens they're quite good at tracing your public movements.