{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do blockchain transactions get confirmed?","a":"Generating proof of work: Miners need to  calculate and solve a complex mathematical problem (hash operation) within a limited time. The difficulty of this problem is set in advance by the Bitcoin protocol to ensure that miners need to invest a certain degree of effort to solve it."}]}],"pr":"eaf447a45421f79de4ca39e3d824acccbcdff4d29f2f064c3f8619ca618f44ae"}