{"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":"1ba367833d7cec51d7a1ce4ace20d560682bbc01dcfef5c726e127d01921437d"}