{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of consensus mechanisms in blockchain?","a":"Security: The consensus mechanism ensures the security and integrity of the data through encryption algorithms  and cryptographic techniques. Each node saves the complete transaction records, making it difficult to tamper with the information once it's recorded on the blockchain."}]}],"pr":"70656e570c0cb181b99e9be581c12031b545e5c90c990b3f8e25a49919c45190"}