{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the security of blockchain ensured?","a":"The security of a blockchain mainly depends on its consensus mechanism and encryption algorithm. Taking the HNB hybrid consensus mechanism as an example, it selects nodes based on identity attributes using Dpos, fully considering interest distribution and fairness, and avoiding situations where a single group behaves maliciously. The consensus is reached quickly, and the speed does not slow down with the increase in nodes. It also has characteristics such as high scalability and high fault tolerance. In addition, blockchains  use encryption algorithms (such as SHA-256) to encrypt data to ensure that it cannot be tampered with. In summary, the security of a blockchain is formed by the combination of the consensus mechanism and encryption algorithm, creating a robust security protection system."}]}],"pr":"bfac55584f7709755ceeed0ddc2e75e6482dab2aee03597c16db39fff68d1bf3"}