{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure security?","a":"Decentralization: Blockchain technology adopts a decentralized network structure, without a centralized control institution to manage data. Each node is equal and has the right to verify and  update data. This decentralized feature ensures the distribution and fairness of data."}]}],"pr":"258bb63f8412c38aacf4d2fb1a38c5e80114af8f43459e287f2cf59eefc4c32f"}