> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ixo.world/llms.txt
> Use this file to discover all available pages before exploring further.

# Emerging Platform digital identifiers

> Use decentralized identifiers and credentials in the Emerging Platform across solutions, including Emerging Household Energy.

This page documents the **Emerging Platform** identity layer and the **cross-product IXO patterns** used by Emerging Household Energy and other solutions. Use it for reusable identifier and controller patterns. For household-energy workflow steps, pair this with the household-energy guides.

## What this covers

* Creating decentralized identifiers (DIDs) for projects, households, devices, and agents
* Managing controllers and update permissions
* Linking claims and credentials to identifiers
* Keeping sensitive personal data off-chain

## Scope

* **Platform scope:** identity model, controller patterns, and how domains anchor DIDs
* **Solution scope:** household-energy entities that use the same model (register households and devices before monitoring and reporting)

## Core model

Each entity is represented by a **DID** and an associated **domain record** with:

* Identifier and type metadata
* **Controller** references (who may update the DID document and authorize changes)
* Service endpoints
* Linked **claims** and **credentials**

At a glance:

* A Decentralized Identifier (DID) identifies each entity.
* Controllers manage updates and authorization.
* Claims and credentials reference entity DIDs.
* Registry state provides traceability for lifecycle events.

## Where this is used

This platform capability is used by:

* [Household monitoring](/platforms/Emerging/household-monitoring)
* [Stove use monitoring](/platforms/Emerging/stove-use-monitoring)
* [Emerging dMRV](/platforms/Emerging/emerging-dmrv)

**Where to apply this**

* **Platform integration:** identity-first registry and claim workflows.
* **Household Energy implementation:** register households and devices before monitoring and reporting.

## Cross-product IXO dependencies

* **IXO Protocol** for DID and domain state anchoring: [IXO Protocol](/protocols/ixo-protocol)
* **Impact Hub Registry** for entity and claim records: [Emerging registry](/platforms/Emerging/registry)
* **IXO Matrix** for encrypted payload storage when data should not be on-chain: [IXO Matrix](/articles/ixo-matrix)

For a single developer-oriented overview of DID, claims, and verifiable credentials together, see [Identity and credentials](/articles/identity-and-credentials).

## Related pages

* [Domain registration](/platforms/Emerging/domain-registration) — entity registration flow
* [Credential issuance](/platforms/Emerging/credential-issuance) — credential lifecycle
* [Registry](/platforms/Emerging/registry) — query and record management