Hi Álvaro,

Currently, DSpace only stores a Item-level date & time in the following 
Dublin Core fields:

dc.date.accessioned - The date the Item was added to DSpace
dc.date.available - The date the Item became available in the DSpace UI
dc.date.issued - The date the Item was first released/published

So, at this time, DSpace does not have a date & time associated with 
individual bitstreams. That is a hope for the future, as we hope to 
eventually support the need to add metadata to all objects (not just 
Items). However, at this point in time, there's no timeline for when 
this feature will occur (as we need to locate some volunteer developers 
to make it happen).

It's possible other users have modified DSpace to store a datetime on 
bitstreams. Hopefully if someone has, they will respond to this thread.

- Tim

On 1/27/2012 8:21 AM, "Sandoval, Álvaro" wrote:
> Hello DSpace community:
>
> I would like to know how If DSpace data model is storing the bitstream's
> datetime. If so, how can I get it?
> It would be very useful when an Item is representing a Series, and it
> has many bitstreams, associated to its differents numbers.
>
> We are using column "user_format_description" of "bitstream" table to
> store its date in ISO format, but I would like a better solution.
>
> Thanks in advance.
>

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