Registries main purpose of existence is to be a single source of truth for the zone(s) they are responsible for... That hasn't changed, though Network Solution

Registries main purpose of existence is to be a single source of truth for the zone(s) they are responsible for... That hasn't changed, though Network Solutions is now just a registrar, not a registry after Verisign sold it off. Verisign, however, held on to and still operates the registry for most of the TLDs NSI did, and a few new ones, as well as 2 out of 13 root servers (up from 1 out of 9)