{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain, how can tracking data be implemented to return on a given block?","a":"Next, obtain the block data at the  specified height through the API interface of the blockchain. This usually includes the header information of the block (such as block hash, timestamp, difficulty coefficient, etc.) and the transaction information inside the block."}]}],"pr":"daa38be2bfa31377cc19e6c619a47461b1a973e60ce8597d492172dd58344f2e"}