I'll give you an example. This is just an approach. It's not the exact solution. In an indigenous art registry, it's decentralized in that it doesn't have one owner, but it could have dozens of owners. Every nation, every tribe, could have an ownership stake and they would each—I'll spitball here—put in a certain amount of money to put up the network. Then all of the tribes together would elect an administrative council that would actually administer the blockchain.
That is one approach, and that, in fact, is how Bitcoin works. Bitcoin has over 9,000 nodes or servers, and they've elected a Bitcoin foundation that runs it. There's a core team that actually implements all the changes and administers the network. That is one proposed approach of how you could take a decentralized model and still make it functional.