'''Halo numbers''' are the numbers assigned to pieces of the [[Nine Inch Nails]] discography in the order that they are released, so that a collection can be neatly ordered, supplied, and bragged about. Halo numbers are sometimes modified for variations of a release, such as the different versions of ''The Downward Spiral''.
Some Halo numbers are shared with promotional items; Halo 10 is shared with the ''Hurt'' and ''Piggy'' promo CDs and Halo 16 is shared with the ''Into The Void'' promo CD. There are also promotional releases that are given 'Seed' numbers and other [[Trent Reznor]]-related releases from [[The Null Corporation]] that are given 'Null' numbers.
==Origin==
[[Trent Reznor]]'s decision to use a numbering system for his releases stemmed from the fact that Depeche Mode had already come up with a similar system, using BONG for singles.[http://www.reddit.com/r/IAmA/comments/134vgv/i_am_trent_reznor_of_nine_inch_nails_and_how_to/c70u4mg?context=3]
== Halos ==
|2014
|Made available for streaming from Beats Music before it was absorbed by Apple Music. Contains remixes of four tracks from ''Hesitation Marks''.
|}
==Null numbers==
Releases from The Null Corporation that are not affiliated with Nine Inch Nails or [[How To Destroy Angels]] are assigned Null Numbers in the same system. On December 2nd, 2019, the assignment and order of the numbers was confirmed by [[John Crawford]] on [[Echoing The Sound]] forum.
{| class="wikitable" width="100%"
|+ Null Corp
! style="background-color:#c8c8c8;" | Null # !! style="background-color:#c8c8c8;" | Name !!style="background-color:#c8c8c8;" | Release Year !!style="background-color:#c8c8c8;" | Description
|-
!style="background-color:#c8c8c8;" | 01
|''[[The Social Network Soundtrack]]''
|2010
|Digital, CD, BD, and Vinyl release
|-
!style="background-color:#c8c8c8;" | 02
|''[[The Girl With The Dragon Tattoo Soundtrack]]''
|2011
|Digital, CD, and Limited edition Vinyl release
|-
!style="background-color:#c8c8c8;" | 03
|''[[Gone Girl Soundtrack]]''
|2014
|Digital, CD, BD, and Vinyl release
|-
!style="background-color:#c8c8c8;" | 04
|''[[Before The Flood Soundtrack]]''
|2016
|Digital and Vinyl release
|-
!style="background-color:#c8c8c8;" | 05
|''[[Patriots Day Soundtrack]]''
|2017
|Digital release
|-
!style="background-color:#c8c8c8;" | 06
|''[[The Vietnam War Original Score]]''
|2017
|Digital, CD, and Vinyl release
|-
!style="background-color:#c8c8c8;" | 07
|''[[John Carpenter's Halloween]]''
|2017
|Digital and Vinyl release
|-
!style="background-color:#c8c8c8;" | 08
|''[[Mid90s (Original Music From The Motion Picture)]]''
|2018
|Digital release
|-
!style="background-color:#c8c8c8;" | 09
|''[[Bird Box Original Score]]''
|2019
|Digital and Vinyl release
|-
!style="background-color:#c8c8c8;" | 10
|''[[Watchmen (Music From The HBO Series)]]''
|2019
|Digital and Vinyl release
|-
!style="background-color:#c8c8c8;" | 11
|''[[Waves (Original Score)]]''
|2019
|Digital release
|}
*[[Bootlegs]]
*[[Sigil numbers]] (How To Destroy Angels discography)
*[[Null numbers]] (Trent Reznor and Atticus Ross discography)
*[[Soundtracks]]
==External Links==
The following websites attempt to document every version of every NIN release:
*[http://nincatalog.com/ nincatalog.com]
*[http://www.discogs.com/artist/Nine+Inch+Nails Nine Inch Nails at Discogs.com]
[[Category:NIN Discography]]