{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure data security?","a":"Blockchain technology ensures data security through aspects such as decentralization, encryption algorithms, and consensus mechanisms. Firstly, blockchain adopts a decentralized distributed ledger storage, where data is stored on multiple nodes instead of a single server, thereby improving the security and reliability of the data. Secondly, blockchain uses encryption algorithms (such as SHA-256) to protect the privacy  and security of the data. Each participant has a private key and a public key; the private key is used to sign transaction records, while the public key is used to verify signatures. This encryption technology can effectively prevent fraud and tampering. Lastly, blockchain technology ensures data security through consensus mechanisms, such as proof of work."}]}],"pr":"4277eb3d941ebc49556caba77810aa2a70187c61480e654f780258dcf01b55f4"}