{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to validate and verify protocol specifications in a blockchain?","a":"Cryptographic Technology: Blockchain uses  cryptographic algorithms (such as symmetric keys and asymmetric keys) to secure the transmission and storage of data. These algorithms allow nodes to securely validate and authenticate transactions without the need for a central authority."}]}],"pr":"3c5b0f84f077c0d72fa40c130b25470f293bd842fe66ace683a0c2eee8ef8436"}