Russia's invasion of Ukraine is turning into a geopolitical test for Bitcoin as a digital currency in a time of crisis. So far, it appears to be passing.

Bitcoin jumped more than 15% on 28 February as the Treasury Department announced sanctions against Russia's central bank and froze some Russian assets. The US measures prohibit Americans from engaging in transactions with Russia's central bank, its National Wealth Fund, and the Ministry of Finance. Other countries have announced similar measures.