{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of digital content copyright protection?","a":"Immutability: Blockchain technology has the characteristic of being immutable, where each block  contains the hash value of the previous block, forming a chain-like structure. This makes any attempt to tamper with the data on the blockchain difficult, if not impossible."}]}],"pr":"8e5157fe19b35c8736445e3298b436fddc49f960bc7405ff978bbe1c062737e6"}