{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does etcd ensure the security of communication between nodes and the reliability of data storage in a blockchain?","a":"Data replication: etcd provides data replication mechanisms to maintain data consistency and  availability in case of node failures."}]}],"pr":"b445247f32c0e7c4dc42bc0caf1482dd037ed6d38d6a617802b6b18c9c96c8dc"}