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Created page with "Ethereum's proof-of-stake protocol upgrade, designed to replace the proof-of-work as mentioned earlier and improve the scalability of the network while also enhancing security by making it less costly for an attacker to attack the network. == Sources: == https://fintechmagazine.com/financial-services-finserv/140-blockchain-and-crypto-words-ultimate-z-glossary Category:Glossary"