比特幣是一種去中心化的加密貨幣,最早由化名中本聰(Satoshi Nakamoto)的作者在2008年的白皮書中提出,並於2009年1月正式發行。 作為點對點的線上貨幣,比特幣的所有交易都是在平等且獨立的網絡參與者之間直接進行,不需要任何中間人的許可或協助。中本聰表示,比特幣的創建目的是為了實現「線上付款能從一方直接傳送到另一方,中間無須透過任何金融機構」。 儘管在比特幣出現之前已有類似去中心化電子貨幣的概念,但比特幣的獨特之處在於,它是首個被實際應用的加密貨幣。
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