If a vast number of user's group create their own new DLV based DNSSEC registry, and if users use that new DLV (along with ICANN-DNSSEC) root-key in their own local DNSSEC-based DNS Resolver/Server, and if domain-owners also use it for additional signing of their own domain-names, then there can be a new third TTPA. In such case, any PGP/GPG Key/signed-code data or a webpage or web data can be three/triple-channel verified. ISC's DLV itself can be used as a third TTPA as its still used widely and active, so availability of another new DLV will become fourth TTPA.