摘要：The first wave of cryptocurrencies, starting in the 1980s, attempted to digitize government-issued currency (or fiat currency, as cryptocurrency enthusiasts say). 8 The second wave, represented prominently by Bitcoin, 7 provide their own separate currency—issued and operated independently of any existing currencies, governments, or financial institutions. Bitcoin’s currency (BTC) is issued in fixed quantities according to a hardcoded schedule in the protocol.
