What is the difference between Ethereum Classic (ETC) and Ethereum (ETH)?
These cryptocurrencies were once the same project, but the communities split in 2016. In 2022 Ethereum switched from proof of work to proof of stake, where Classic remained on proof of work. This change in consensus mechanism signified the first major difference between the two chains. Apart from this divergence, ETC and ETH are still technologically very similar, and contracts deployed to Ethereum can also be deployed to Ethereum Classic.