{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do testing and validation nodes in a blockchain interact with local programs?","a":"Establish a connection between the testing and validation node and the local program: First, the testing and validation node needs to establish a reliable connection  with the local program for communication. This connection can be achieved through network sockets, remote process calls (RPC), or other communication protocols."}]}],"pr":"d40dae3b75fda5569151848bfd03e76a0ddeff5aae8bf6b1bed8ad59f09018a1"}