{"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":"353946f1634d337c86b77fd8e24df68274e5ab9e6688bb39457789e31676b463"}