The attribution should be at least (c)OpenStreetMap, but it's fine to give more detail like:
1. Using just the coastal shoreline in the basemap: (c) OtherDataSource, coastline (c)OpenStreetMap 2. Using OSM basemap in 1 along with roads, rivers and water bodies <other data> (c) OtherDataSource, basemap (c)OpenStreetMap 3. Using OSM basemap with 2 and buildings (c)OpenStreetMap, <other data> (c) OtherDataSource It seems simpler to just clearly state "you need to include (c)OpenStreetMap on the map if you use OpenStreetMap" rather than making more complicated rules. - Joseph Eisenberg _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
