[OSM-dev] Attribution string (was: Licence redaction ready to begin)

Kai Krueger kakrueger at gmail.com
Thu Jul 12 06:12:02 BST 2012

On 07/10/2012 01:38 PM, Lynn W. Deffenbaugh (Mr) wrote:
> I've been wondering if it would be possible to put a fixed URL on the
> tile and/or API servers that application programs could fetch to
> retrieve the current attribution string for that particular tile
> server?  Something like 0/0/0.txt or some-such that we could simply
> code into the tile-based clients to fetch the desired string instead
> of coding it directly in the clients?
I think this sounds like a good idea. Rather than 0/0/0.txt, I would use
a name like attribution.txt or license.txt in the base directory of the
tile style. It allows for different attribution for different styles on
the same server while still having a meaningful name.

In addition I would suggest to add an attribution.html that has the
attribution string as a html snippet with the correct hyperlink to the
license and contributors.

If people think this is useful, I could add this to mod_tile to help
standardize the attribution URL.

> Since we all have to go in and change the attribution anyway, now
> might be a really good time to make it a fetchable string.
> Lynn (D) - KJ4ERJ
> PS.  I'm proposing a plain text string that can then be integrated
> into a client display here.  Another fixed URL per tile server could
> provide the reference URL string so that said applications can make
> the text attribution a link going there.
> On 7/10/2012 3:32 PM, Michael Collinson wrote:
>> Hi Paul,
>> We discussed this tonight at LWG
>> https://docs.google.com/document/pub?id=1W7eh17a7cEUilpbictKYnWJfHoxIcA1W_tPEmqvmDkc
>> item 5
>> We do not think temporary dual-licensing is particularly practical or
>> necessary provided that we allow consumers reasonable time to make
>> their attribution string changes. We are happy to re-visit this if
>> there is any strong reason we are not seeing.
>> Mike
>> LWG
>> >/ From: Richard Fairhurst [mailto:richard at systemeD.net <http://lists.openstreetmap.org/listinfo/dev>]
>> />/ Subject: [OSM-dev] Licence redaction ready to begin
>> />/ 
>> />/ Once it is complete, we will be ready to distribute data under the ODbL
>> />/ and we'll advise of that with a separate announcement. The final pre-
>> />/ redaction dataset available under CC-BY-SA has now been generated at
>> />/ http://planet.openstreetmap.org/planet-120704.osm.bz2 . Where data has
>> />/ been redacted, any attempt to access it from the API or the site's
>> />/ 'browse' pages will return a response to that effect.
>> /
>> To transition from tiles derived from a CC BY-SA source to tiles derived
>> from a ODbL source will require changing the attribution and regenerating
>> all tiles so that CC BY-SA data is not mis-represented as being ODbL data.
>> What time period will data be available under dual licenses so that tile
>> servers will not have to reload their database then immediately delete every
>> cached tile when changing their attribution?
>> When I discussed this with Frederik awhile back I suggested publishing the
>> first post-redaction planet as dual-licensed as well as one week of diffs to
>> allow tile servers to continue to serve old CC BY-SA tiles and re-render
>> over the course of a week.
>> At the very least I would suggest distributing the first post-redaction
>> planet as dual-licensed for the simple reason that all the information to
>> create it will be available as CC BY-SA.
>> _______________________________________________
>> dev mailing list
>> dev at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/dev

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