{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the communication between etcd and validator in a blockchain ensured to be secure?","a":"uthentication and Authorization: To access etcd and validator services, users must undergo authentication  and authorization processes to ensure that only"}]}],"pr":"9d0f352daabb53130870be675335ac4453dab1b02c4d43145112c347543013a7"}