[OSM-legal-talk] Custom Data Formats? Data Filtering?

[Rob Myers]

I am not a lawyer, this is not legal advice.

On Mon, Dec 8, 2008 at 12:48 PM, brendan barrett <shogunz0r at gmail.com> wrote:

> 1. Would I be allowed to leave out the "user" and "timestamp" tags in
> the version that I create? Could I leave out any unnecessary tags
> (there are a few)?

Yes, you can. The rendered maps do this for example.

> 2. Do I need to make this data available in any other way other than
> on the DVD that we distribute with the software?

No, you don't need to. But bear in mind that under BY-SA the users of
your version of the data will be free to copy it for use outside of
the application or to give a copy of it to their friends for free.

> We would obviously attribute the map data source to Open Street Map...
> or the users... or whatever make sense (suggestions?).

"Copyright OpenStreetMap and contributors."

http://wiki.openstreetmap.org/wiki/Attribution

The CC website explains various ways of attributing work here:

http://creativecommons.org/license/results-one?q_1=2&q_1=1&field_commercial=yes&field_derivatives=sa

OSM is under BY-SA 2.0 rather than 3.0, but it's easy enough to change
any text or URLs from the above page to reflect this.

- Rob.