{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the data storage issue in blockchain be solved?","a":"Immutable ledger: Once data is stored in a block, it is difficult to change or delete  it. This feature ensures the integrity and reliability of the data stored in blockchain, making it an ideal solution for applications requiring tam"}]}],"pr":"5953e0174d0b8ab6a6d77cf2e74fa7d28e57151ca3c18a4442fd20712d30bed2"}