{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the data security of the blockchain ensured?","a":"Consensus mechanism: Blockchain employs a consensus mechanism to reach agreement on the validity of transactions and generate new blocks. This mechanism prevents unauthorized modifications to the blockchain  and ensures the integrity of the data."}]}],"pr":"792ceca05634f19e7c82c4ebb24c31dec6bcaf59127461535387ba33cf1306c3"}