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Key Takeaways Cryptocurrencies are digital currencies secured by cryptography and powered by the blockchain technology Key characteristics of cryptocurrencies include decentralization, anonymity, and immutability. Bitcoin, the first and most well-known cryptocurrency, was created as a peer-to-peer currency but is today used as a store of value. The second largest crypto – Ethereum – was built

Key Takeaways:​ Blockchain technology offers a secure and transparent way to record crypto transactions. Blockchain is a digital ledger where transactions are grouped into blocks and linked together to form a chain. Transactions get added to the blockchain via mining, where miners compete to solve complex puzzles. Blockchain is characterized by decentralization, transparency, and immutability,