{"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":"3f05f4ab6aa52a73f53d664592c48c4b710ff9b7ee848797b0296768d10487bf"}