{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain manage programs?","a":"Transparency and traceability: The chain structure of blockchain enables users to easily trace the origin and transaction history of data, ensuring the integrity and  credibility of the data."}]}],"pr":"114877b0f0e31d2dfa5bdc8b0a0a61b00a8cc9857153fdc59f621e89d5dff910"}