Instead of relying on a single authority for a tld, why not make the ownership distributed and let multiple organizations compete among themselves? May be they

Instead of relying on a single authority for a tld, why not make the ownership distributed and let multiple organizations compete among themselves? May be they could share data over blockchain or a similar database. This is still centralized control but at least distributed to few organizations instead of just one monopoly. Or even better, same policy of distributed control could be applied to ICANN. I don't understand the intricacies of their work, but I hope they get some serious competition.