{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What storage management issues should be paid attention to in the maintenance of blockchain technology nodes?","a":"Data integrity: Ensuring that data in the blockchain is not tampered with. Once data is written into the blockchain, it is difficult to modify. Therefore, during the node maintenance process, it is  essential to ensure data integrity to prevent malicious attackers from tampering with the data."}]}],"pr":"d2e98108768385fa88e2456c411d451b38ed4ae492c626c585ba318189029cb0"}