Tesla 持有比特币实现 5.3 亿美元未实现浮盈，SpaceX 持有比特币实现 8.2 亿美元未实现浮盈。（Bitcoin Archive）
The Russian Central Bank approves Bitcoin and cryptocurrencies as margin for futures and derivatives
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The Russian Central Bank has approved Bitcoin and cryptocurrencies as margin collateral for futures and derivatives, which can be used to support leveraged trading and short selling. （The Bitcoin Historian）
