OpenStreetMap Foundation

Licensing Working Group

  Tuesday 10th April 2012

18:00 - 19:15 GMT

Agenda & Minutes


Present: Simon Poole, Dermot McNally, Grant Slater, Richard Weait, Michael Collinson

Apologies: Oliver

Minutes by: Michael

1. Adoption of Minutes of last meetings

The LWG last met April 3rd for a long-form meeting.

Proposed: Simon

Seconded: Grant


2. MATTERS ARISING (open action items from previous meetings)

  • Grant - Get a license and attribution page link as an XML Comment into these APIs: Rails API. (should be complete soon)
  • Mike -  combine Bing Imagery License comments as a succinct list for forwarding to Microsoft legal.
  • Mike - Incorporate into foundation landing page
  • Mike - Provide text to Grant re and friends in Sept 20th minutes. ?OS or linking to attribution page or both? … liaise with CWG 
  • Grant - DMCA address needs updating
  • Mike - Make sure responding to German-language decliner mailings on a future agenda so that it gets done. (done by Frederik Ramm, Tom Hughes and Richard)
  • Dermot - Follow up on software for Poland object-granularity inclusion/exclusion for ODbL (done)
  • Mike - Thank pavel for kindly agreeing to use the bulk of his contributions.

3. Finalise today's agenda

4.  Contact and re-map

Global picture:

  • Database went write-read again 4th April a few hours ahead of schedule.
  • Older contributor acceptances now 64,820 - an increase of 450 over last week, declines up to 410.
  • Nodes that will likely not survive the license change are down from 19.71M to 19.16M [1]
  • Ways which may have to be completely deleted are down from 1.47M to 1.43M [2]
  • Problematic relations down from 36.89K to 36.76K [2]



Lost mappers project (if anything):

Simon will produce a wrap up in a couple of days. About 12 larger mappers have agreed recently as a result of the campaign.

6. Technical Rebuild

Progress and issues

Test code being finalised.

Visualization tools looking forward. We will leave it to the community to come up with something if required, our feeling is that the need is minimal.

Tile cache … since it takes time to refresh some tiles will come from a CC-BY-SA db and some from an ODbL, although all tiles will be licensed CC-BY-SA. Is this an issue in terms of how they should be attributed?  LWG does not see any need to speed up expiry of old cache. When people see “Copyright OpenStreetMap”, or “©OpenStreetMap” with or without other details, and want more details, they will come to OpenStreetMap website … we need to make sure that page adequately describes a) the copyright of tiles made by us, and b) where they come from, i.e a CC-BY-SA database and/or a an ODbL database.


7. Hall of Shame

Apple - We understand from legal counsel that our first step should be to follow Apple’s formal DMCA take-down notice procedure at We will draft this notice and inform the board that we want to send it immediately. The board is taking this over as per their Extraordinary Meeting minutes 7th April.

Microsoft - At the beginning of the year, German mappers noticed that Bing has been blurring aerial imagery of military sites based on OSM polygons ... this raises share-alike derivation issues. We understand that Microsoft have since apologised in an official press release and will use alternative sources but has not yet begun to do so.  This issue has been causing some concern in the OSM community. We will gather more information and consider whether we need to take further information. Simon will take the lead on this.

8. AOB

Next Meeting:

Tuesday Apr 17th 18:00 UTC / 19:00 BST(UK) / 20:00 CEST