{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the methods included in the JavaScript-based tracking pattern of blockchain?","a":"Get  block data: This method is used to obtain the data of a specific block from the blockchain. The block data can be retrieved through the block hash value, index, or other methods."}]}],"pr":"dd74bcaf8e74e179d360a9b38957195470a8ea17b266e92022f9ddf022c6ceec"}