Public key crypto as used by tor is probably a satisfactory level of decentralisation without all the extra steps and inevitable fraudulence from blockchain types.
Convincing people to use alternate resolvers is the real problem. Already chrome has stripped out most of a URI, and from memory they are planning to go further, changing public perception around an "ugly" address is very much a social challenge rather than technical.
Exactly, it's a fair and equitable process, I have my doubts about the various blockchain implementations despite being quite close to some of them. If you are a company with branding needs you can always go the facebookcorewwwi.onion route.
Convincing people to use alternate resolvers is the real problem. Already chrome has stripped out most of a URI, and from memory they are planning to go further, changing public perception around an "ugly" address is very much a social challenge rather than technical.