# DID

基于SAT20名字服务，实现DID的以下特性：

1. 唯一性：每个 DID 是唯一的，不重复的，以确保标识的独特性：由协议从底层支持DID的唯一性。
2. 去中心化：DID 不依赖于中央机构或中介来验证或管理，而是由参与者自主控制和验证：谁拥有持有该名字的聪，谁就是该DID的主人。
3. 可验证性：DID 具有可验证性，可以通过密码学证明来验证其所有权和控制权：同上。
4. 持久性：DID 的生命周期应该是持久的，不会因为某些变化或失效而失效：聪是不可销毁的，铭刻在聪上数据也不可销毁。


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sat20.org/zi-chan-fa-xing-xie-yi-ordx/chang-jing/did.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.