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Proof of Stake Goes Live On Ethereum

Bitcoin gives blockchain a bad name, as it consumes so much energy — just to create a new block every 10 minutes or so. At its core is a proof of work method that ensures that it would be far too expensive to provide the computational resources to compromise the network. This is defined as a proof of work (PoW), and has succeeded in creating a robust cryptocurrency, and has resulted in a waste of energy.