> For the complete documentation index, see [llms.txt](https://docs.zkid.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zkid.app/readme/did.md).

# Basic Concepts

In this section, we will explore more  details about some basic concepts, starting with our ZK DID Method and Verifiable Credential. The following is the table of contents of this section.

* [DID](/readme/did/did.md)
  * [DID Protocol Main Architecture](/readme/did/did.md#did-protocol-main-architecture)
  * [ZK DID Method](/readme/did/did.md#zk-did-method)
  * [ZK DID Examples](/readme/did/did.md#zk-did-examples)
  * [DID-Keys](/readme/did/did.md#did-keys)
* [VC](/readme/did/vc.md)
  * [What are Verifiable Credentials](/readme/did/vc.md#what-are-verifiable-credentials)
  * [Key roles of VC](/readme/did/vc.md#key-roles-of-vc)
  * [Core Data Model](/readme/did/vc.md#core-data-model)