{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the common security challenges of blockchain technology?","a":"Privacy: Privacy is another concern for blockchain technology, as the transparent nature of  the blockchain makes it difficult to protect the"}]}],"pr":"cdb6ec7a610758d172a23061d28076a4bda7c7fea66125ac135c9f42438315f5"}