{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The core security mechanisms in blockchain include:\n\n1. Consensus Algorithm: The consensus algorithm ensures that all participants in the blockchain network agree on the validity of transactions and maintain a consistent view of the ledger. Examples of consensus algorithms include Proof of Work (PoW), Proof of Stake (PoS), and Delegated Proof of Stake (DPoS).\n\n2. Cryptography: Cryptography plays a crucial role in securing the blockchain network. It encrypts sensitive data, such as private keys and transactions, and uses public-key cryptography to verify the authenticity of transactions.\n\n3. Immutability: Once data is recorded on the blockchain, it cannot be altered or deleted. This property ensures that transactions are permanent and secure, making it difficult for hackers to manipulate the ledger.\n\n4. Transparency: The blockchain is a distributed, public ledger that allows participants to view the history of transactions. This transparency promotes trust and accountability","a":"Cryptographic principles: Blockchain uses encryption algorithms (such as SHA-256) to encrypt and  sign data, ensuring the security and integrity of the data. Only nodes with the correct keys can access and verify the data."}]}],"pr":"eb567d1809d9606fc8311f6281f2b5ad9298a6565b373e2bd72fb2cb336a95c6"}