How to know a data file is updated?

Hi, I’m wondering how to know if a data file is updated, like the data provider may fix some errors or modify the data after releasing them. How do I know they are updated? Is there something like hd5sum or a signature to check?

Hi @sangyx97 this is a good feature request.

Currently you can see when the data was last Refreshed, but as you know that most commonly means it was an incremental refresh with the latest data.

In situations where we do a full restatement of the data, we’ll try to email previous downloaders letting them know of the update.