Validators are required to operate nodes — computers connected to the blockchain network. These nodes keep a replica of the whole blockchain and get involved in the consensus method. Cardano: Cardano is recognized for its deal with peer-reviewed analysis and improvement. It operates on the Proof of Stake variant https://financefeeds.com/dogecoin-to-crash-below-0-10-as-market-backfires-with-bitcoin-drop-this-sleeping-giant-could-be-the-next-x1000/