{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of parameter k in a blockchain?","a":"The parameter K in a blockchain usually represents the value that each node or user can bring, which is commonly referred to  as the"}]}],"pr":"e1f5182f7f981decf9ae39ea74b01548e79041c33a85ff4db91655032772588e"}