技术上，私密货币的供给是无限的：比特币的上限是2,100万个单位，但如果绝大多数“矿工 ” （ 向公开账目上增加分布式记账记录的人）同意，这一上限可以提高。
Technically, the supply of cryptocurrencies is infinite: bitcoin is capped at 21 million units, but this can be increased if a majority of “miners” (who add transaction records to the public ledger) agree.