{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security issues and challenges of blockchain technology?","a":"Smart Contract Security: Smart contracts are automatically executed programs in blockchain technology, and their security is an essential aspect of the technology. However, smart contracts have also encountered security breaches, which have led to the loss of  funds and other issues."}]}],"pr":"cbd017e9dfac63ef49f13dd25c64ae824e7ef0f780fd9160a5bd79e0a27ef179"}