{"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":"60ccbcd61731b652a5d8107cf3134daf195f0f4a9dca8e900f1240d510448a25"}