{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of blockchain technology in the second-hand transaction market?","a":"Enhancing transaction  transparency: Blockchain technology can completely record housing transaction information on the blockchain, enabling both buyers and sellers to clearly understand each step of the transaction process, thereby improving transaction transparency."}]}],"pr":"37a410021877ba475b726215dfbcb23def2a3653fa30cca9344f34712db23053"}