How can I anonymously store supplemental research data that I submit with papers? I'm writing a contribution for a double-blind submission system. 

Since I would like to supply more data than I could show on a small number of pages, I'm looking for a way to reference supplemental data in my manuscript, such as software scripts, figures or databases.

I could upload on GitHub, RPubs, Figshare and Zenodo, but all of these would expose my real user name (and I don't feel like making a throwaway e-mail account with a new repository for every anonymous publication that I intend to write).

Is there any way to get the above services to do what I want? Or is there a similar service that would allow anonymous hosting of research data? 

It would be even better if I could later (e.g. after publication) declassify the information, with the link from the manuscript still being intact.
If an author is very concerned about keeping their data private and anonymous until the last moment before publication, the workflow would be like this:


The authors deposit their data in a private repository while they are finalizing the manuscript, before submission. They ensure that the documents and files they upload to the repository do not have their names on them.
The authors obtain a 'view-only' link from the repository. This link will give anyone access to their private repository in a way that hides the repository metadata so that the authors of the repo are not visible to people using this link.
The authors insert this view-only link into the text of their manuscript, for example in the data availability statement. Then they submit their manuscript for peer review. Their data remains private on the repository.
Anyone with the manuscript, such as the editor and peer reviewers, can click on the 'view-only' link in the paper to download the data. The peer reviewers can anonymously inspect the data on the repository, and they do not see the names of the authors on the repository.
Once the paper is accepted, the authors switch their data repository from private to public, and the 'view-only' link is removed from the manuscript, and replaced with the DOI to the public repository of the data. The editor or copyeditor checks that the paper now has a DOI, because the 'view-only' links typically expire after a few months.


The repositories that I know support this workflow are:


Open Science Framework: https://help.osf.io/hc/en-us/articles/360019930333-Create-a-View-only-Link-for-a-Project
Figshare: https://knowledge.figshare.com/articles/item/how-to-share-cite-or-embed-my-data
-Dataverse: http://guides.dataverse.org/en/latest/user/dataset-management.html#private-url-to-review-unpublished-dataset
Zenodo, not exactly as I describe above, but very close: https://ineed.coffee/5205/how-to-disclose-data-for-double-blind-review-and-make-it-archived-open-data-upon-acceptance/amp/


There may be others I don't know about!