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  1. Home
  2. ISRCs
  3. USQX90900435
Unit 731 album cover

ISRC

USQX90900435

Unit 731✓2

Slayer
matched
Released 2009-01-01

Last verified: August 16, 2026

USQX90900435 is the International Standard Recording Code (ISRC) for the recording “Unit 731” by Slayer, released 2009-01-01. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T9031137992. Written by JEFF HANNEMAN, KERRY RAY KING, TOMAS E. ARAYA.

Format

USCountry
QX9Registrant
09Year (2009)
00435Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2009):
Last two digits of the reference year (2009). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCUnit 731
ISWCUnit 731
IPIJEFF HANNEMAN

Musical Work (ISWC)

T9031137992Unit 731

People also ask

What is the ISRC for "Unit 731" by Slayer?+
The ISRC for "Unit 731" by Slayer is USQX90900435.
Who wrote "Unit 731"?+
"Unit 731" was written by JEFF HANNEMAN, KERRY RAY KING, TOMAS E. ARAYA. The ISWC for this composition is T9031137992.
What is an ISRC and what does it tell you?+
An ISRC (International Standard Recording Code) is a 12-character ISO 3901 identifier that uniquely tags a specific sound recording. The first two characters are the country code, the next three are the registrant (label or distributor), the next two are the year, and the last five are a unique recording number.
Is the ISRC the same as the ISWC?+
No. The ISRC identifies a specific recording, while the ISWC identifies the underlying musical composition. USQX90900435 is the ISRC for this recording; T9031137992 is the ISWC for the composition it is a recording of. One composition (ISWC) can have many recordings (ISRCs) — originals, remixes, live versions, and covers each get their own ISRC but share the same ISWC.

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What is ISRC USQX90900435?

USQX90900435 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Unit 731” by Slayer. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.

This recording is linked to the musical work T9031137992, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.

Learn more about ISRCs · Powered by Notes.fm

Who wrote this song?

JEFF HANNEMANComposerLyricist
IPI: 00126998823
PENNEMUNDE MUSIC OriginalPublisher0.00%IPI: 00336770058
UNIVERSAL MUSIC-MGB SONGS RightsAdministrator33.33%IPI: 00538724724
KERRY RAY KINGComposerLyricist
IPI: 00127009304
MOLOSSER MUSIC OriginalPublisher0.00%IPI: 00336769623
UNIVERSAL MUSIC-MGB SONGS RightsAdministrator33.34%IPI: 00538724724
TOMAS E. ARAYAComposerLyricist
IPI: 00336710278

Who publishes this song?

PENNEMUNDE MUSICOriginalPublisher
IPI: 00336770058
UNIVERSAL MUSIC-MGB SONGSRightsAdministrator
IPI: 00538724724
MOLOSSER MUSICOriginalPublisher
IPI: 00336769623

Which contributors are credited?

0000 0000 7824 425XJeff Hanneman0000 0004 0682 8239Jeff Hanneman0000 0000 7826 6993Kerry King0000 0003 8394 3639Tom Araya

Identifier Graph

ISRCUSQX90900435ISWCT9031137992IPIJEFF HANNEMANIPIKERRY RAY KINGIPITOMAS E. ARAYAISNIJeff HannemanISNIJeff HannemanISNIKerry King

MLC Song Code

U1155B
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

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Songwriter profiles

JEFF HANNEMANIPIKERRY RAY KINGIPITOMAS E. ARAYAIPI
Slayer

USQX90900435 is the International Standard Recording Code (ISRC) for the recording “Unit 731” by Slayer, released 2009-01-01. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T9031137992. Written by JEFF HANNEMAN, KERRY RAY KING, TOMAS E. ARAYA.

Slayer