{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to create a hierarchical structure in digital objects using recursion and references within a blockchain?","a":"In blockchain, the method of creating a hierarchical structure in digital objects using recursion and references is through hierarchical ledger technology (such as smart contracts in Ethereum) and encryption algorithms. First, on a decentralized platform such as  blockchain, we need a unified representation of digital objects. This can be achieved by using JSON (JavaScript Object Notation) or other data structures. Next, utilizing recursive functions, we can create a hierarchical structure that divides digital objects into different layers. The recursive function receives a digital object as input and divides it into sub-objects according to predefined rules. These sub-objects can contain reference relationships, thereby"}]}],"pr":"4da4d685a4aa7cca01988c6fccf5ee3898cfcd2612dd48401ca76a10353c4c3e"}