{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain, how can I obtain the block hash using a healthy RPC node?","a":"Install and configure RPC client: According to the documentation of the selected RPC node  provider, install and configure the corresponding RPC client. Clients usually support multiple programming languages such as Python, Java, JavaScript, etc., and you can choose the appropriate client according to your development needs."}]}],"pr":"8bfa92518c68e1f19b4a53bfb0440975152c140ff513ff47b44f9694381d5d49"}