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<div>Warning: I am not a lawyer<br></div><div><br></div><div>In short: technically CC0 may be used, but it would be confusing as ODBL would still<br></div><div>apply anyway.<br></div><div><br></div><div>See <a href="https://wiki.osmfoundation.org/wiki/Licence/Licence_Compatibility#CC0">https://wiki.osmfoundation.org/wiki/Licence/Licence_Compatibility#CC0</a><br></div><div><br></div><div>"CC0 licenced material is in general compatible, however the license only
extends<br></div><div>to material the licensor actually has rights in and
specifically avoids making a<br></div><div>statement on the status of any third party
material included."<br></div><div><br></div><div>So you could license this as CC0, but it does not mean that other limitations are<br></div><div>not applying (limited extraction of just some shapes from OpenStreetMap may<br></div><div>be doable without triggering ODBL - see<br></div><div><a href="https://wiki.osmfoundation.org/wiki/Licence/Community_Guidelines/Substantial_-_Guideline">https://wiki.osmfoundation.org/wiki/Licence/Community_Guidelines/Substantial_-_Guideline</a><br></div><div>but such project would likely quickly pass it).<br></div><div><br></div><div>In the same way as Wikidata is CC0 but not importable into OpenStreetMap<br></div><div>as they include location data systematically copied from various sources,<br></div><div>for example Google Maps.<br></div><div><br></div><div>Nov 8, 2020, 10:10 by tagging@openstreetmap.org:<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><div>Good initiative Martin, at first sight I'll make two comments :<br></div><div>* CC0 doesn't allow to derive data from OSM<br></div><div>* as geometries are fuzzy in nature, there should be a way to accept several geometries for a same entity, be it only to avoid long discussions on boundaries<br></div><div>Yves <br></div><div><br></div><div class=""><div>Le 8 novembre 2020 09:47:04 GMT+01:00, Martin Koppenhoefer <dieterdreist@gmail.com> a écrit :<br></div><blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class=""><div><br></div><div><br></div><div dir="ltr">sent from a phone<br></div><div dir="ltr"><div><br></div><blockquote type="cite"><div>On 8. Nov 2020, at 09:24, Mateusz Konieczny via Tagging <tagging@openstreetmap.org> wrote:<br></div></blockquote></div><blockquote type="cite"><div dir="ltr">I really like an idea of separate database/layer for such fuzzy objects.<br></div></blockquote><div><br></div><div><br></div><div>I have started a project to collect such fuzzy objects. Data is stored in a git repo in Geojson representation. Pull requests welcome.<br></div><div><a href="https://github.com/dieterdreist/OpenGeographyRegions" rel="noopener noreferrer" target="_blank">https://github.com/dieterdreist/OpenGeographyRegions</a><br></div><div><br></div><div>Cheers Martin <br></div><div><br></div></blockquote></div></blockquote><div><br></div> </body>
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