Similar to Bitcoin, the previous Ethereum consensus method used proof-of-work (PoW) to mine crypto and add transactions to the blockchain. Ethereum 2.0 changed the consensus mechanism to proof-of-stake (PoS). See
proof-of-work algorithm,
proof-of-stake algorithm,
Bitcoin mining and
Ethereum 2.0.
Ethereum Miners
The Etherscan.io website maintains real-time statistics about every aspect of Ethereum transactions. This breakdown of miners in late November 2021 shows that two mining pools (on the right) made up half of all Ethereum mining. In the prior week, nearly 50,000 blocks were mined. See
crypto stats.