{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why are program data accounts necessary on the blockchain?","a":"Data storage and management: The blockchain adopts a chain-like data structure, arranging data in chronological order to form a distributed ledger that cannot be  tampered with. Program data accounts are used to store and manage this data on the blockchain, ensuring the integrity and accuracy of the data."}]}],"pr":"7bf1391c6450f1dfbc7f0653200363f8259907e956b2029e756fc09921495c49"}