wanted to share my knowledge and experience with everyone. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part. BTC is the informal ticker symbol Bitcoin was given shortly after its birth; XBT is its currency code, compliant with the rules of the International Organization for Standardization. As of June 2017, font support for the Bitcoin sign is in macOS Sierra, iOS, Android O beta, Windows 10, creators Update and several Linux releases. Use My Current Location (Scroll for more options share Your Chart.