I would like to rent a bare metal server (such as Vultr or Scaleway), pay in crypto, and also not make an account with email but authentication somehow via the blockchain.
I know MetaMask can be used for log ins, but I am wondering if there may be an even simpler way. Perhaps your cryptocurrency password would be used to access the bare metal, so whoever paid for it would be the only person who could have in?
In either case, is there any way to get bare metal only with blockchain to pay, authenticate and use?