For more information on how these tags work you can check out our Tagging Instructions.
Verified
Locations with a Survey Date that is less than one year old will have a verified checkmark indicating that the information is most likely up-to-date. If you visit a location and are able to pay with bitcoin it is best practice to update the survey:date, check_date, or check_date:currency:XBT tag yourself. More information on which tag to use can be found here. Thanks for contributing to bitcoin open mapping!