{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain in digital art trading?","a":"Immutable data: Blockchain adopts encryption algorithms to ensure that each transaction is recorded in a block, and once the information is recorded, it  cannot be tampered with. This ensures the authenticity and traceability of artworks."}]}],"pr":"d42379867a71255bb5dfa250833caf5372f906c51b121753fb21b414e2c62dc2"}