Data and statistics are based on data by © OpenStreetMap contributors.
In order to provide unbiased correct statistics, a combined database is used that contains ODbL 1.0 licensed OSM history data for dates after September 12, 2012 and CC-BY-SA 2.0 licensed OSM history data for all dates prior to September 12, 2012.
Aggregated results produced by the ohsome API, ohsomeHeX, the ohsome dashboard, or other tools based on the OSHDB can be considered to be facts. You should acknowledge the providence of the data when publishing this data or secondary results produced from this data by attributing the Heidelberg Institute for Geoinformation Technology (HeiGIT) in a way that is appropriate for the used publishing medium and context.
If a substantial amount of data is extracted from the ohsome API or through other means from OSHDB extracts provided at downloads.ohsome.org, for example in the form of GeoJSON features, the produced data can include features that are licensed under the ODbL 1.0 or under the CC-BY-SA 2.0, depending on the respective feature's timestamp as noted above.