{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the signing and management of electronic contracts?","a":"Data  immutability: Blockchain technology adopts encryption algorithms to ensure that once electronic contract data is recorded in a block, it is difficult to tamper with. This helps prevent the tampering of electronic contract data during transmission and storage."}]}],"pr":"2c75020fb93a6c6fbb0042d4dba38c43a2103d6f4a9f6f7747d44cdf0a06020e"}