Cryptocurrency is a digital or virtual form of money that uses cryptography for security. Unlike traditional currencies issued by governments, cryptocurrencies operate on decentralized networks based on blockchain technology. This ensures transparency and immutability, making transactions secure and traceable.
Bitcoin, created in 2009, was the first cryptocurrency and remains the most well-known. Since then, thousands of alternative cryptocurrencies, often called altcoins, have been developed. Popular examples include Ethereum, plinko-online.in which introduced smart contracts, and Ripple, known for its fast and low-cost international payments.
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