Staking offers traders and investors a chance to earn passive income with their assets. Only tokens on the proof-of-stake platforms can be used for staking, with Ethereum, Solana, and Cardano as the most popular.
Cardano
Cardano is one of the biggest cryptocurrencies by market cap and uses the proof-of-stake consensus mechanism, specifically the Ouroboros.
Altcoins refer to all other cryptocurrencies other than Bitcoin. In recent years, the definition has expanded to coins other than Bitcoin and Ethereum since many cryptos are forked from one of the two.