> For the complete documentation index, see [llms.txt](https://docs.eclipse-pass.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eclipse-pass.org/developer-documentation/pass-core/model.md).

# Model

The PASS data model is represented using [JSON API](https://jsonapi.org/).

## Model Objects

* [Deposit](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Deposit.md): An attempt to push a publication to a repository.
* [File](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/File.md): File being sent to a repository.
* [Funder](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Funder.md): The sponsor of a grant.
* [Grant](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Grant.md): Associates an award at the insitution with funders and principal investigators.
* [Journal](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Journal.md): The journal of a publication
* [Policy](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Policy.md): The institutional requirements to publish to certain repositories.
* [Publication](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Publication.md): The publication being sent to a repository
* [Repository](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Repository.md): The destination of a deposit
* [RepositoryCopy](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/RepositoryCopy.md): A publication in a repository.
* [Submission](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/Submission.md): The submission of a publication to a set of repositories.
* [SubmissionEvent](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/SubmissionEvent.md): An event performed by a user on a submission.
* [User](https://github.com/eclipse-pass/pass-documentation/blob/main/developer-documentation/pass-core/model/model/User.md): A PASS user.

## Model Diagram

<figure><img src="/files/fRWrps09r2baUHk235QV" alt="Data Model Diagram"><figcaption><p>Data Model Diagram</p></figcaption></figure>

## Notes

### Identifiers

An object is uniquely identified by a tuple consisting of its id attribute and its type.

### DateTime attributes

DateTime attributes are strings formatted as per the Java DateTimeFormatter with pattern `yyyy-MM-dd'T'HH:mm:ss.SSSX`.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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.eclipse-pass.org/developer-documentation/pass-core/model.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.