Reserve Bank of India (RBI) Governor Shaktikanta Das' recent comments that while cryptocurrency is a 'serious concern', its underlying near decade-old blockchain technology can grow even without the currency, has further fuelled debate on whether blockchain and the overlying currency are interconnected, or whether blockchain (the technology) can exist without the currency.So can you just have the technology and not the currency?Some experts believe public blockchain needs cryptocurrency to work while private blockchains don't.Public blockchains are distributed and decentralised. Each new block requires validation by all the computers connected to the network or nodes before it is added to the blockchain.
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