{"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":"Receive responses: The local program processes the requests and sends back responses to the testing and validation node. These responses contain the results of the  executed operations or the answers to the queries."}]}],"pr":"56748eb2189c08da6af2afd383d5e1f845d8b785770a85b9a4fdc80ce1dfa7bc"}