Lido, Coinbase, Kraken and Binance, the four largest validator node operators on Ethereum’s PoS Beacon Chain, have amassed a 54% share of all ETH staking activity, according to Nansen. Lido’s dominance, by virtue of controlling roughly 33% of total ETH staked on Ethereum’s PoS blockchain, has raised centralization worries in relation to Ethereum’s long-term health and security.