Solana SOL/USD uses a combination of Proof of History (PoH) and Proof of Stake (PoS) for quickly processing transactions, which makes it an eco-friendly blockchain network. Cardano ADA/USD also uses PoS, which leverages the amount of stake held in the system with the goal of determining consensus. Its variation of PoS is known as Ouroboros, […] The post Top 3 proof-of-stake tokens to buy on December 2: Solana, Cardano, and Algorand. appeared first on Invezz.