A widely-appealing and driven brand name which would be ideal for a cryptocurrency company.
USMine has only six letters and only two syllables. Two-syllable names are exceptionally rare and very prestigious. Successful brands using two syllable names include Gillette, Walmart and Google.
Usmine.com is a .com domain. Dot com domains are the most sought after domain extension in the world, famously used by websites like google.com. Once you own a .com, it will be much easier to rank for your own name in Google.