{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The security of blockchain lies in the following aspects:\n\n1. Decentralization: Blockchain technology is decentralized, meaning that it is not controlled by any single entity or authority. This reduces the risk of centralized attacks and ensures that the system is more resilient to external threats.\n\n2. Immutability: Once information is recorded on the blockchain, it cannot be altered or deleted. This ensures that the data stored on the blockchain is accurate and reliable, making it difficult for hackers to manipulate or tamper with the system.\n\n3. Cryptography: Blockchain uses cryptographic algorithms to secure and validate transactions. These algorithms use secret keys and public keys to encrypt and decrypt data, ensuring that only authorized users can access and transact on the blockchain.\n\n4. Consensus mechanism: Blockchain networks use consensus mechanisms to ensure that all participants agree on the validity of transactions. These mechanisms prevent unauthorized transactions and maintain the integrity of the network.","a":"Data cannot be tampered with: Blockchain uses encryption algorithms to link data in chronological order, forming an unchangeable chain. Each  block contains the hash value of the previous block, any attempt to tamper with the blockchain will lead to changes in the chain structure, thus making it difficult to tamper with the data."}]}],"pr":"b25c255888aad6f5f5bf17e6b28da657eaabe59b510a516054f1e9cc9bfba60b"}