Instead of having a copy of individual blockchains on each node (as is common in bitcoin), Cardano’s blockchain streamlines the number of nodes in a network by appointing a leaders responsible for verifying and validating transactions from a collection of nodes .
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Cardano (ADA), still in the top ten (as of writing currently) cryptocurrency by market capitalisation. Cardano uses Proof of Stake (PoS) to improve scalability and enhance sustainability compared to other cryptocurrency platforms . Cardano is able to handle a large number of transactions.
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