{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the security and irreversibility of transactions?","a":"Blockchain technology ensures the security and irreversibility  of transactions through various technical means such as decentralization, distributed ledgers, cryptographic algorithms, and consensus mechanisms. Specifically, blockchain records transactions in a distributed ledger, allowing each node to participate in the maintenance and verification of the ledger, thereby avoiding single-point failures and security risks associated with centralized exchanges. The immutable nature of blockchain technology ensures that once a transaction is added to the blockchain, it cannot be altered, further enhancing the security of transactions. In addition, blockchain uses cryptographic algorithms to encrypt data to ensure the security of data transmission and access. The consensus mechanism, meanwhile, enables nodes to reach agreement on the validity of transactions and maintain the integrity of the blockchain."}]}],"pr":"6cf5ee95aea417697f32c799172b5471c5e601ba66a06eecfa99011a66b89311"}