Plus PoW means only 1 copy of true blockchain has to exist somewhere - and everyone will be able to know it's correct
https://fountain.fm/episode/H15mnPrWSqDNHrL2qxgJ
nostr:nevent1qvzqqqpxquqzqaqygujppt633wfe5ygfwdxakyxr9qthryzgxwaas7u8r3rchl78e9hx0w