Which cryptocurrencies are proof of stake?

Ethereum, like Bitcoin, currently uses a consensus protocol called Proof-of-work (PoW) .

In its effort to be faster and more energy-efficient, the Ethereum blockchain (version 1.0), which is the second-largest cryptocurrency network, has also now set out to upgrade to Ethereum 2.0 and a process called staking is one of the key changes .

There are two major consensus mechanisms used by most cryptocurrencies today. Proof of work is the older of the two, used by Bitcoin, Ethereum 1.0, and many others. The newer consensus mechanism is called proof of stake, and it powers Ethereum 2.0, Cardano, Tezos and other (generally newer) cryptocurrencies.