> For the complete documentation index, see [llms.txt](https://dna-6.gitbook.io/docs.dna.living/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dna-6.gitbook.io/docs.dna.living/technical-architecture/dual-did-authentication-mechanism.md).

# Dual DID Authentication Mechanism

* **User DID:** Manages user identity and defines data and asset operation permissions.
* **Asset DID:** Each pledged RWA asset is assigned a unique on-chain DID, binding its legal documentation, valuation reports, and ownership rights.