{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain address the issue of data tampering?","a":"Cryptographic  technology: Blockchain employs cryptographic principles, such as digital signatures, hash functions, etc., to ensure data security. Each transaction uses digital signatures to verify its origin and integrity, preventing unauthorized modifications or tampering."}]}],"pr":"a15673660c7e86f827e99580e806aa89eaefe96bd897a163c373202462f430ec"}