{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How dangerous are blockchain upgrades?","a":"Technical risks: During the upgrading process, it may cause instability in the existing system, technical failures or security vulnerabilities, thereby affecting the normal operation of the entire network.  In addition, unexpected technical problems may occur during the upgrading process, which require substantial resources and time for repair."}]}],"pr":"3a04010bb10e99545f5e22bb2bb08bf44f26d774e5e0e8c9be8294429895849f"}