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  1. Home
  2. ISRCs
  3. USLS51941107
Relentless album cover

ISRC

USLS51941107

Relentless✓2

John Murphy
matched
Released 2019-05-03

Last verified: July 11, 2026

USLS51941107 is the International Standard Recording Code (ISRC) for the recording “Relentless” by John Murphy, released 2019-05-03. 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 T0719314596. Written by JOHN PAUL MURPHY.

Format

USCountry
LS5Registrant
19Year (2019)
41107Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2019):
Last two digits of the reference year (2019). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCRelentless
ISWCRelentless
IPIJOHN PAUL MURPHY

Musical Work (ISWC)

T0719314596Relentless

People also ask

What is the ISRC for "Relentless" by John Murphy?+
The ISRC for "Relentless" by John Murphy is USLS51941107.
Who wrote "Relentless"?+
"Relentless" was written by JOHN PAUL MURPHY. The ISWC for this composition is T0719314596.
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. USLS51941107 is the ISRC for this recording; T0719314596 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 USLS51941107?

USLS51941107 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Relentless” by John Murphy. 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 T0719314596, 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?

JOHN PAUL MURPHYComposerLyricist
IPI: 00162367472
BBC WORLDWIDE LIMITED OriginalPublisher0.00%IPI: 00801142595
UNIVERSAL - SONGS OF POLYGRAM INTERNATIONAL INC SubPublisher100.00%IPI: 00353265272

Who publishes this song?

BBC WORLDWIDE LIMITEDOriginalPublisher
IPI: 00801142595
UNIVERSAL - SONGS OF POLYGRAM INTERNATIONAL INCSubPublisher
IPI: 00353265272

Identifier Graph

ISRCUSLS51941107ISWCT0719314596IPIJOHN PAUL MURPHY

MLC Song Code

RA72FY
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

Related

Other versions of this workView all on iswc.fm

Relentless

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DED831100241
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US39N1900031
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QMSTJ1506478
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Megan McDuffee

QZFZ71961391
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Sepultura

FR6V81252070

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Songwriter profiles

JOHN PAUL MURPHYIPI
John Murphy

USLS51941107 is the International Standard Recording Code (ISRC) for the recording “Relentless” by John Murphy, released 2019-05-03. 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 T0719314596. Written by JOHN PAUL MURPHY.

John Murphy