May 19, 2020, 09:43 by europeanwaterproj...@gmail.com: > How quickly do OSM node and ways numbers mutate ? What percentage should I > expect to change each year. > No idea. You can check this using https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_API_by_Example#OSM_data_at_a_certain_date (it is a query example displaying state of OSM database at a specific date) https://overpass-turbo.eu/s/U98 is displaying amenity=drinking_water data at a specific date after it is run If the percentage of ids mutates slowly enough .. maybe this is still the best bad short term option ? > Apparently Mangrove uses GEO URI to create perma links towards objects. > > https://en.wikipedia.org/wiki/Geo_URI_scheme> . How do they deal with node > repositioning ? I could create a link name with first 5 latitude num > followed by first 5 longitude num... but as soon as someone moves the node I > would get a broken link... > You can try automatically detected moved nodes, and update your link. Still, would require some manual checks. In case of water fountains having some official number it can be added as ref.
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