{"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":"604e91d9edddc630ca3062b229444b2322970a07b4865429a03bf448c79e65e4"}