{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain?","a":"mmutable: Blockchain uses encryption algorithms to ensure  that once data is recorded in a block, it is difficult to modify, ensuring the authenticity and reliability of the data."}]}],"pr":"ab2e2a8ee65f2fb23c593623e6facc15ba772f0aae8564df6bea1c8037c65999"}