{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the core features of blockchain?","a":"The core features of blockchain include: \n1. Difficulty in tampering with data, as each block contains the hash value of the previous block, forming an unalterable chain structure; \n2. Decentralization, where nodes in the blockchain network jointly maintain the entire blockchain, without centralized servers  or institutions; \n3. Security, as long as there is one server running normally in the blockchain network, the entire blockchain is secure; \n4. Transparency, all transaction records on the blockchain are public and can be viewed by anyone; \n5. No need for trust, as automated execution and execution of agreements are achieved through smart contracts, reducing the cost of trust."}]}],"pr":"092607171c449667a8f3018fa057cb643a781e2ae1e7127976add116c840bd04"}