{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to monitor the health of RPC nodes in real-time to ensure obtaining the latest block hash?","a":"Set up an RPC monitoring system: First, you need to set up a system that can monitor the health of RPC nodes, which can receive and process health status information  from each node."}]}],"pr":"eccdad4505db0e0f4a5e7e7a12f66a5a3ed74022bde3383876de1a64b4752b8f"}