{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The main characteristics of blockchain technology are:\n\n1. Decentralization: Blockchain technology operates without a central authority or middlemen, which means that transactions are processed directly between participants without the need for intermediaries.\n\n2. Immutability: Once a block is added to the blockchain, its contents cannot be altered or deleted. This ensures that the history of transactions is permanent and tamper-proof.\n\n3. Transparency: The blockchain is a public ledger that records all transactions, making it easy to verify the authenticity and integrity of the data.\n\n4. Security: Blockchain technology uses cryptography to secure the network and protect sensitive information. Cryptographic algorithms encrypt the data, making it difficult for unauthorized parties to access or manipulate it.\n\n5. Peer-to-peer (P2P) networking: Blockchain networks rely on P2P technology to enable direct communication between participants without the need for a centralized server or","a":"Immutable data: Blockchain uses cryptographic principles to ensure the consistency and integrity of data. Each block contains the hash  value of the previous block, forming a chain structure. Once the data in a block is changed, it will cause the hash value of the subsequent blocks to change, thereby rendering the entire chain ineffective."}]}],"pr":"f2ccac99da91eafe7a700dea614d476e0978c7b78886cad7d0341786a480b4de"}