{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security mechanisms in blockchain?","a":"Consensus mechanism: The  consensus mechanism is the core algorithm for ensuring data consistency in blockchain networks. Common consensus mechanisms include Proof of Work (such as Bitcoin), Proof of Stake (such as Ethereum), and Byzantine fault tolerance."}]}],"pr":"f3876536ed17b4ec3648cf9548bfd545e7a281786a53119a4fb59ba6ba76fdbf"}