{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the parameters of the debug_traceBlockByNumber method in blockchain?","a":"blockNumber: Required parameter, indicating the block number  to be queried. This is an integer, usually starting from block 0."}]}],"pr":"8454ed73b92abc227f374dd4912116d8fcc6873705428978a8a45192e310f15c"}