{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of testing and validation nodes in a blockchain?","a":"The main function of the testing and validation nodes in a blockchain  is to ensure the secure, stable, and efficient operation of the blockchain network. These nodes are responsible for validating transaction data in the blockchain, ensuring the authenticity and sequence of transactions, and participating in the consensus process to ensure the security of the blockchain network. In addition, validation nodes are responsible for synchronizing ledger data, executing smart contract management, and maintaining the operation of blockchain nodes. By fulfilling the functions of testing and validation nodes, the reliability, security, and compatibility of the blockchain system can be improved, laying the foundation for the widespread application of blockchain technology.\n\nIn a blockchain network, testing and validation nodes play a crucial role. They help ensure the security and stability of the blockchain network while promoting the development and application of blockchain technology."}]}],"pr":"4119662225493540460ea99195c42e2987e426d785e60d381e403d13586d8d7b"}