{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to ensure the security of a blockchain network?","a":"Consensus mechanism: The consensus mechanism is a key technology for maintaining data consistency in a blockchain network. For example, Proof of Work (PoW) and Proof of Stake  are common consensus mechanisms used in blockchain networks."}]}],"pr":"81bbf92a7fd30365a5526d86e988d964210dc66bbcb17046411e12170a523b77"}