{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the data types in a blockchain program?","a":"Boolean type: Used to represent true or false, usually used to indicate  whether a transaction is successful or not."}]}],"pr":"fcc7ec826ef8462b64b4b87447d622660fae1e0e15b7679a7a2d419ba609838c"}