{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The main characteristics of blockchain are as follows:↵↵1. Decentralization: Blockchain technology relies on a distributed network of nodes to store and process data, rather than relying on a centralized authority or server. This eliminates the need for a trusted third party and enables peer-to-peer transactions.↵↵2. Immutability: Once a block is added to the blockchain, it cannot be altered or deleted. This is because each block contains a cryptographic hash of the previous block, creating a chain of linked blocks. Thus, any attempt to modify a previous block would also require modification of all subsequent blocks.↵↵3. Transparency: The contents of each block on the blockchain are publicly accessible, allowing anyone to view the history of transactions and the current state of the system. This promotes transparency and accountability in the ecosystem.↵↵4. Security: Blockchain uses cryptographic algorithms to secure the network and protect against unauthorized access and tampering. Each","a":"The main features of blockchain include decentralization, distributed data storage, timestamping, asymmetric encryption, and smart contracts. Decentralization means that there is no central node in the blockchain network, and all nodes jointly participate in transaction validation and recording, improving system security and stability. Distributed data storage refers to the fact that data in blockchain is stored on each node, avoiding single points of failure and  enhancing data security. Timestamping ensures that data in blockchain is arranged in chronological order, forming an unchangeable chain structure. Asymmetric encryption technology provides security for blockchain, ensuring that data is not stolen by unauthorized third parties. Smart contracts are a type of application of blockchain technology."}]}],"pr":"60257efe03cd7902ea27df83b7525676bb92c006ea1054c5441ae70a14adace9"}