{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to public welfare and charitable causes?","a":"Ensuring data security: Blockchain technology has  characteristics such as distributed ledgers and encryption algorithms, which can ensure the security and privacy of related data in public welfare and charitable causes."}]}],"pr":"2e532509e1a1a9f17cf12519b93564324f316c34fe458b507969dc9ae43bdd6a"}