{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology enable secure transactions of electronic signatures and contracts?","a":"Data cannot be tampered with: Blockchain technology ensures that data cannot be tampered with through encryption algorithms (such as SHA-256). Each  block contains the hash value of the previous block, and any tampering will cause subsequent blocks to change, thereby making the entire blockchain invalid."}]}],"pr":"97006c4effc5aea8ccc42cad53a4d8e246cb5c1f1be1440e23c16c66110b6852"}