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🪙 加密货币

一种由密码学保护并记录在区块链上的数字货币。

加密货币

加密货币是一种利用密码学技术保护并记录在区块链上的数字货币。它没有中央发行机构、没有政府担保，也没有实物形式。比特币于2009年推出，是第一个加密货币。以太坊于2015年推出，增加了智能合约功能。如今，市值已达数千种，总市值从1000亿美元到超过3万亿美元不等。

技术才是关键。区块链是由计算机网络维护的分布式账本。交易通过共识机制验证，而非银行。这使得交易难以审查或撤销。这也使得区块链在投机、非法支付和跨境转账方面极具吸引力。其波动性极大。比特币曾在一年内涨跌80%甚至更多。

监管尚不明朗。美国出于税收目的将比特币视为财产，并将交易所视为货币服务企业进行监管。美国证券交易委员会已起诉多家加密货币公司，认为它们的代币属于未注册证券。欧盟已采纳《加密资产市场条例》（Markets in Crypto-Assets Regulation）。中国已禁止交易和挖矿。各国的监管规定差异很大。

加密货币确实有实际用途。它实现了无需银行的支付、低成本汇款和可编程货币。但它也助长了欺诈、勒索软件和洗钱活动。技术本身是中立的，但其用途却并非如此。

Comments (6)

  1. Ken M.
    The volatility is what keeps most people away. Who wants to buy coffee with something that might be worth double tomorrow?
  2. Roger M.
    The volatility is what keeps most people away. Who wants to buy coffee with something that might be worth double tomorrow?
  3. Dr. Pat Hoffman
    Blockchain technology is interesting but most cryptocurrencies are speculative investments at this point.
  4. Tina S.
    Blockchain technology is interesting but most cryptocurrencies are speculative investments at this point.
  5. Gwen Taylor
    The environmental impact of mining is a real concern that doesn't get enough attention.
  6. Omar F.
    The environmental impact of mining is a real concern that doesn't get enough attention.

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