{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology implement smart contracts?","a":"Encryption protection: Blockchain technology utilizes cryptographic algorithms (such as SHA-256) to ensure the confidentiality and integrity of data. Each block contains the hash value of the previous block, forming a chain structure. Once the data in a block  is changed, the hash value of subsequent blocks will also change."}]}],"pr":"829cb2d8623c8c6199bbe1925d74af812259081b87d07261d9150637da2d5f23"}