Any Ethereum account might "stake" (deposit) 32 ETH to be a validator. At the conclusion of each "epoch" (32 block slots, Every slot Long lasting 12 seconds), Each and every validator is pseudorandomly assigned to among the slots with the epoch following the following, either as being the block proposer https://beaukonnn.ageeksblog.com/28253574/considerations-to-know-about-ethbase