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

# IDs

> General structure and usage of unique identifiers in the c.technology platform.

Generally, all entities in the c.technology platform are identified by a unique identifier (ID) in [TypeID format](https://github.com/jetify-com/typeid).
TypeIDs are UUIDs with a prefix that indicates the type of entity, making it easy to identify and manage different types of objects within the platform:

```json theme={null}
{
    // Example vehicle ID in TypeID format.
    "id": "veh_01jnk61e5pf6zs5ag6483xqe43"  
}
```

The only exception to this are organization IDs, which use reverse domain names (e.g. `com.demoCompany`) instead of TypeIDs.
See the [Organizations](organization) documentation for details.

For users, email addresses can be used as an alternative unique identifier, as they are guaranteed to be unique within the platform.