What Is DoubleZero Coin (2Z)? DoubleZero Coin (2Z) is the native token of DoubleZero, a project that seeks to improve how blockchains communicate with each other. Why Did Bitunix Exchange List DoubleZero Coin (2Z)? By listing DoubleZero Coin (2Z), Bitunix gives its users access to a project that aims to make blockchain easier to adopt and further increase crypto’s global presence. DoubleZero Coin (2Z) is now available for trading on the Bitunix spot market.