Bitcoin is the first global, digital currency. No bills to print or coins to mint. It's decentralized - there's no government, institution (like a bank) or other authority that controls it. Owners are anonymous; instead of using names, tax IDs, or social security numbers, bitcoin connects buyers and sellers through encryption keys. And it isn't issued from the top down like traditional currency; rather, bitcoin is "mined" by powerful computers connected to the internet.