{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why is blockchain technology considered to have high security?","a":"Cryptographic protection: Blockchain technology employs cryptographic principles for data validation, ensuring that data cannot  be tampered with. Each block contains cryptographic hash values of the previous block, making it difficult to modify the data without detection."}]}],"pr":"ee4e1e50b829ce796c7f5e74884fcdda8c371c5e8353def7c4e10b45d2fb9af1"}