Wikidata:WikiProject Commons/Properties table

Generic properties

The properties below apply to all types of files.

Property / Aliases	Currently exists on Wikidata as	Data type	Qualifiers	Remarks
Digital representation of/ Depicts / Manifestation of /	digital representation of (P6243)	Item	See below	Same property for things 'depicted' in a file.  It is actually more 'manifestation of' or 'digital representation of'. I assume this is going to be the property equivalent to c:template;Artwork's Wikidata field. I would call it Digital representation of and I think it should have single value constraint. The main use will be on Commons Structured data and not on Wikidata. --Jarekt (talk) 21:13, 21 October 2018 (UTC)
Depicted place		Item		To be included in 'Depicts' in general?
Depicted event		Item		For instance, for photos of a specific festival, a play, a musical performance. To be included in 'Depicts' in general?
Depicted date	date depicted (P2913)	Time
Depicted period		Item		where a specific date cannot be given; compare time period (P2348), set in period (P2408)
Date of file creation / Scan date	inception (P571)	Time
Source website	No, to be created	Item		The Wikidata item of the website where the file was taken from, e.g. YouTube, Flickr, Europeana, a museum's website
Source URL	Probably to be created. There is reference URL (P854) (reference URL) but that is for references specifically	URL		The specific URL where the file was found on the source website
Institution's media file identifier	No, to be created (probably 1 identifier property per institution)	Identifier		For institutions whose media repositories have unique and persistent identifiers for individual media files. Not to be confused with identifiers for creative works.
Created with support by	sponsor (P859)	Item		To indicate a funder, a Wikimedia affiliate, and/or a specific program through which this file was created or uploaded
Wikimedia campaign/project (e.g. Wiki Loves Monuments)		Item
Creator / Photographer	creator (P170)	Item or 'User'	Roles object has role (P3831), e.g. Photographer	Of the file itself - the 'thing depicted' will also have a creator and that might be a different person.
License reviewer	No, to be created	'User'
Other version(s)	No, to be created	Commons file
Derived from file / Extracted from file		Commons file		Or different properties? 1 for derived, 1 for extracted? (see also based on (P144)) I think it should be a single new property almost identical to based on (P144) but of the Commons file type instead of item type. I would call it derived from file and use some qualifier for describing the change. --Jarekt (talk) 21:31, 21 October 2018 (UTC)
Part of series/whole	part of the series (P179)	Item
Series ordinal	series ordinal (P1545)	String (number)		To indicate the file is in the nth position of a series
Follows	follows (P155)	Commons file		To indicate the previous file in a series
Followed by	followed by (P156)	Commons file		To indicate the next file in a series
Link to this file in external service (e.g. IIIF, map warper)		URL or Identifier	Qualifier indicating the specific external website the URL refers to
Language	language of work or name (P407)	Item	Applies to part
Quality assessment	Commons quality assessment (P6731)	Item		Valued image, featured image... (or use badges?)
Media legend	media legend (P2096)	Monolingual text		Media item's caption

Read-only reflections of primary data held elsewhere

(see also "EXIF data", below)

Property / Aliases	Currently exists on Wikidata as	Data type	Qualifiers	Remarks
Type of media file	No, to be created	Item		Photograph, audio file, video file, 3D file
Mime type		Item?
File format	file format (P2701)	Item		jpeg, png,
Date of upload to Wikimedia Commons	No, to be created (inception (P571) with qualifier would be inconsistent with other statements, which largely refer to the work rather than specifically to the copy hosted on Commons; and would be unwieldy, especially for something which would be used on every item for a file)	Time
Uploader		'User'
File size : height		Quantity		in pixels
File size : width		Quantity		in pixels
Data size	data size (P3575)	Quantity

Qualifiers for things depicted in a file

'Depicts' also applies to works represented in non-visual media - for instance a composition or song that is performed in an audio file.

Property	Currently exists on Wikidata as	Qualifiers	Remarks
Depicts	depicts (P180) -> Item (can be a person, location, object, artwork, map, book or other publication, theater production, song, animal…)
		depicted part (P5961)	e.g. head (Q23640) of a person, interior (Q2998430) of a building, etc.
		shown with features (P1354)
		Additional information about an object depicted. (Controversial -- should the object have its own Wikidata item, and these be main properties on it? What if these proposed qualifiers in turn need to be qualified?)
		title (P1476)
		Subtitle subtitle (P1680)
		Original title	title (P1476)
		Original subtitle	subtitle (P1680)
		Design/pattern/motif
		After	To denote a creator made something after someone else's creation
		creator (P170)	Roles (e.g. printmaker, etcher…) - would be qualifiers of qualifiers, something not currently possible...
		possible creator (P1779)	From technical perspective, a qualifier for creator would be better (indexing)
		contributor to the creative work or subject (P767)
		commissioned by (P88) (Item)
		Printed by (Item)
		Print location (Item)
		inception (P571) (Date)
		collection (P195) (Item)	Collection or archive in which the depicted item is guarded. (The FILE representing the collected item has a source website and a source URL)
		Coordinate location
		genre (P136) (Item)
		based on (P144) (Item)	For indicating which works the depicted work is derived from, e.g. an engraving after a painting.
		Credit line (String)
		Page number
		Height
		Width
		Depth
		Language
depicts Iconclass notation	depicts Iconclass notation (P1257) -> Iconclass (Q1502787)		subproperty of (P1647) of depicts (P180)

EXIF(-like) data

Metadata from files' EXIF information will be extracted upon upload and stored in Wikibase at Commons. The original EXIF metadata stays embedded in the file itself, unmodified, even if the extracted metadata in Wikibase is modified by the Wikimedia Commons community.

Non-image media files (e.g. sound and video files, 3D files…) strictly have no EXIF data, but similar metadata applies to them which can be stored in Wikibase at Commons in the same way. More generic properties will help to describe various file types in a similar way.

Property	Currently exists on Wikidata as		Qualifiers	Remarks
Equipment manufacturer	manufacturer (P176), but is currently used more generically	Item		Camera manufacturer in photo EXIF data
Camera model	captured with (P4082)	Item		Camera manufacturer in photo EXIF data
Exposure time	No, to be created	Item		Photograph-specific
F-number	No, to be created	Item		Photograph-specific
ISO speed rating	No, to be created	Item		Photograph-specific
Date of data generation	inception (P571) with qualifier, point in time (P585) with qualifier, or new property	Time
Software used for production of digital file	No, to be created	Item

Two-dimensional images

Property	Currently exists on Wikidata as		Qualifiers	Remarks
Depicts	depicts (P180)	Item		See detailed Depicts info
Resolution
Specific for (digitally-born) photographs
Camera coordinate location / Photographer coordinate location	coordinates of the point of view (P1259)	Coordinates		Might be valid for audio/video files as well
View direction			heading attribute in {{Location}}
Setting				e.g. studio for photographs in a studio setting
Specific for maps
Spatial reference system	spatial reference system (P3037)
Bounding box	No

3D files

Property	Currently exists on Wikidata as		Qualifiers	Remarks
Depicts	depicts (P180)	Item	See above
Geometry	No	integer	unit of geometry (e.g. triangle)	not geometry as in volume as quantity (P2234) but geometry in amount of triangles
Vertices	No	integer		total amount of vertices, used to describe complexity of a model
MIME type/extension	media type (P1163)	Item	see above
Fabrication Method	No	Item
Number of Images used in Creation	No	String
Software used	(See above, mentioned under EXIF-like data)
Link to 2D Render	No
Instrument used				The tool used to create the model
Pivot point coordinates	coordinates of the point of view (P1259)	Coordinates		For 3D objects depicting some real-world features so they can be properly georeferenced.

Audio and video files

Property	Currently exists on Wikidata as	Qualifiers	Remarks
Depicts / Recording of	depicts (P180)	Type of Call (mating, warning, etc.)
Location of filming/recording	filming location (P915) or recorded at studio or venue (P483)
Some kind of time marker	Unsure if needed
EXIF for Audio	No
Duration	duration (P2047)
Cover art image	image (P18)		Used in search results too

Copyright and licensing, for future discussion

Copyright-related properties will be explored further as part of the upcoming structured licenses discussion. For now, below is a parking lot of the properties that were already suggested, already with some proposed structuring.

Property	Currently exists on Wikidata as	Qualifiers	Remarks
Commons file's copyright status
Rationale for Commons file's copyright status			Example: a faithful 2D representation of a 2D public domain artwork is also considered public domain
Commons file's license	copyright license (P275)
Commons file's OTRS ticket
Commons file's rights holder(s)	copyright holder (P3931)
Personality rights warning
Attribution text			Might be author, title (CC BY pre-4.0), attribution party (CC BY 4.0), or some combination
Depicts	depicts (P180)	Copyright status of the depicted thing
		Rationale for copyright status of the depicted thing
		copyright license (P275)
		OTRS ticket for the depicted thing
		Rights holder for the depicted thing	copyright holder (P3931)

Not fully processed yet

Property	Currently exists on Wikidata as	Qualifiers	Remarks
Method of capture
Language	Language of work or name		Community might want to split this property
Language depicted
Language included
Discipline / field of work			For example. geology for the subduction diagram
Photographer position
Watermark			boolean y/n / image
Animated?			boolean y/n / covered in file type