{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why do blockchain node operators need to provide redundant power, network, firewall, HSMs, and servers in data centers?","a":"Data security: Data centers usually have  strict security measures, such as firewalls and high-security hardware security modules (HSMs), to protect blockchain data from hackers and other unauthorized access."}]}],"pr":"fde09b3c0e80d7143733c32b3b676beb8065821d97ddda5f82006eb8158eb76a"}