{"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":"2067134d494d2e14ec331015fb099d4073e87710fceff758e5c91e3e7da6fb2c"}