Look at how certificate transparency is done.. a few servers using same protocol is all it takes. Most crypto-things have this idea that they servers validatin

Look at how certificate transparency is done.. a few servers using same protocol is all it takes. Most crypto-things have this idea that they servers validating transactions have to be compensated and that anyone can do this validation. (validation == mining) Having a few well regulated entities do all the mining is a centralized system that can be verified externally. Without all the cost of decentralization. And with the added security that validators are trusted entities.