{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to art trading and copyright protection?","a":"Data cannot be tampered with：Blockchain  technology has the characteristic of data that cannot be tampered with，and each transaction will be recorded on the blockchain，ensuring the authenticity and traceability of the transaction history and ownership changes of artworks."}]}],"pr":"5d4399a3915022e60e4d17398297c0d7b0ad983b2c9214d1178566a2c19a5403"}