{"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":"7716bd691ef34c5ae616af7f1d576c7994afd48ec4fb09fc3516272c9e405557"}