{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The basic principle of blockchain is decentralization. It is a digital ledger that records transactions across multiple computers, using cryptography to ensure the security and integrity of the data. Each computer in the network maintains a copy of the ledger, and new transactions are verified and added to the ledger by the participating nodes. This creates a distributed, tamper-proof system that eliminates the need for a central authority or intermediary.","a":"Distributed data storage: Blockchain divides data into different blocks, each containing a certain number of transaction records. Blocks are linked together in time order, forming  a continuously growing data chain."}]}],"pr":"3e1ea6dbeb5e32bb63a0d05d93d88a1227298a50f4db540199e0637cf8efe1b4"}