TOKYO -- National governments, mainly the U.S. and China, hold about 2.5% of the world's bitcoin supply, mostly seized in connection with criminal activity, though that could shift amid talk of Washington investing more actively in the cryptocurrency.
According to Bitcoin Treasuries, countries own a total of about 510,000 bitcoin, worth roughly $51 billion as of Friday. By comparison, companies and exchange-traded funds account for 5% and 6% of outstanding bitcoin, respectively.
