{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to query the authentication module in a blockchain using gRPC endpoints?","a":"First, ensure that the gRPC library and the corresponding blockchain platform-specific gRPC client library (such  as Ethereum, IPFS, etc.) have been installed."}]}],"pr":"865868e93e03b5fd80dcf1ebb344ad1b301923079396bfeb0001cfe3716db507"}