{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of hashing values in blockchain?","a":"Unique Identification: The hash value can uniquely and accurately identify a block, allowing any node in the blockchain to obtain  the hash value of the block through a simple hash calculation."}]}],"pr":"216985e917013b7551e12b536b173f2eb3a6feadfe4e07b6d854d31011a96c36"}