{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does distributed storage in blockchain ensure the security and reliability of data?","a":"Immutable records: Once data is recorded on the blockchain, it cannot be tampered with or deleted, providing  an immutable record that ensures the credibility of the data."}]}],"pr":"0e06db17d4e46a7178c1d7cbc55572663ba0271f44ec14560f497debc839844a"}