{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of network data privacy leaks?","a":"Immutability: Blockchain technology has the characteristic of being  immutable, with each data record being linked to the previous record. This prevents unauthorized modifications and ensures the integrity of the data."}]}],"pr":"e68495f2837371e87cfe5b84a302db30e699d3b98524953210daea750f28cd46"}