{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What tools are needed for node validation in a blockchain?","a":"Node validation in blockchain requires the use of tools such as SSHGuard and iptables to ensure the security and availability of the validation nodes.  Meanwhile, verification services for the trustworthy status of nodes, such as the Trusted Base Chain, can ensure data security and reliability while providing high throughput capabilities for data, supporting the construction of higher-level application requirements."}]}],"pr":"9b22eb5331a92bc308b029fead87dc7ecd573dd6fc8161108b396967a5c809d9"}