Key:source:*

This key differs significantly between OpenStreetMap and OpenHistoricalMap. For definitions and usage instructions in OpenHistoricalMap, see OpenHistoricalMap/Tags/Key/*:source.

Prefix source:*
Description
The key prefix "source:" is a namespace identifier used to specify source information for specific properties of a feature.
Used on these elements
See also
source=*
Status: de facto
taginfo: source:*

This page describes a key prefix rather than a simple key.

The source:*=* prefix is a namespace identifier for specifying the source of a tag.

This is especially useful for tags that are likely to run into verifiability issues.

Format

This prefix is used in the following format: source:<key>=<value>

Keys

The key following the source:*=* prefix is generally a property.

Values

The value following the paired source:*=* prefix and key is generally a classification type or a direct link to the source, usually a website.

How to tag

Add the source:*=* prefix with the appropriate key and value to the node, area, or relation for a feature.

Examples

A hostel with an overnight quiet hours period:

• tourism=hostel
• quiet_hours=Mo-Su 22:00-06:00
• source:quiet_hours=<website>

The speed limit of an urban Italian road:

• maxspeed=50
• source:maxspeed=IT:urban

See also

• source=*

Related terms: ‹ source prefix ›