{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the methods for troubleshooting blockchain node failures?","a":"Confirm the fault: First, it is necessary to confirm whether there is a  fault with the node. This can be judged by observing the node's running state, synchronization progress, block generation situation, etc."}]}],"pr":"f9f3350d5ad881433218cf009de37a786768affe028c8b5acb6a6948323538d4"}