{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do testing and validation nodes in a blockchain verify the security and reliability of new programs?","a":"tress Testing: Apply various stress tests to the program to evaluate its performance and stability under high  loads, ensuring that it can"}]}],"pr":"11e6debf7b7ed41ee19f6238b1a2080d09703db49cbb0df5cc1a683162b4ce71"}