{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of operation modules in a blockchain protocol?","a":"External Validation Protocol: This protocol relies on  external witnesses or other third-party institutions to validate inter-chain data. External validators can confirm the authenticity and accuracy of transactions through consensus algorithms, thus achieving interoperability between different blockchain systems."}]}],"pr":"ddac71b0122a17a5180c7f18bc13c614189ff3e3497c376e24623bf5f0b10df2"}