Re:My .in domain has been transferred to another registrant ...
by zamadatix on Saturday November 30, 2019 @05:53PM
(#21672589)
There are 13 well known logical servers (~1000 physical) but they all synchronize the root zone from ICANN just as anybody can https://www.internic.net/zones/root.zone
If it's authentication of authoritative response data you're looking for then that's what https://en.wikipedia.org/wiki/Domain_Name_System_Security_Ex... is for.