21:00-7:00 Keywords: Brazil, Michael Saylor, Calacanis 1. White House: The United States will become the world's bitcoin superpower. 2. Brazilian Postal Service seeks blockchain and artificial intelligence solutions; 3. Industry experts: U.S. policy may prompt global institutions to accelerate their embrace of cryptocurrencies. 4. Michael Saylor shares "$100 trillion" crypto strategy at White House summit; 5. The United States and European authorities seized Garantex's domain name and froze its $26 million assets; 6. Calacanis' proposal to impose a 0.01% tax on all U.S. cryptocurrency transactions was rejected by Sacks.