{"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":"3f90cdabb85a656bebb6e8f5c0af6a6e8fc5f0463bd9603afdff1ba920cd4f6d"}