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https://www.diariobitcoin.com/index.php/2019/05/27/beacon-chain-vitalik-buterin-asegura-que-ethereum-2-0-cambiara-la-forma-de-programar-contratos-inteligentes/
Beacon Chain: Vitalik Buterin asegura que Ethereum 2.0 cambiar√° la forma de programar contratos inteligentes