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  3. USUM72121870

ISRC

USUM72121870

Firework✓2

Katy Perry
matched

Last verified: September 15, 2026

USUM72121870 is the International Standard Recording Code (ISRC) for the recording “Firework” by Katy Perry. 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 T-903.823.362-4. Written by KATHERYN ELIZABETH HUDSON, ESTHER RENAY DEAN, MIKKEL STORLEER ERIKSEN, and others.

Format

USCountry
UM7Registrant
21Year (2021)
21870Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2021):
Last two digits of the reference year (2021). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCFirework
ISWCFirework
IPIKATHERYN ELIZABETH HUDSON

Musical Work (ISWC)

T-903.823.362-4Firework

People also ask

What is the ISRC for "Firework" by Katy Perry?+
The ISRC for "Firework" by Katy Perry is USUM72121870.
Who wrote "Firework"?+
"Firework" was written by KATHERYN ELIZABETH HUDSON, ESTHER RENAY DEAN, MIKKEL STORLEER ERIKSEN, TOR ERIK HERMANSEN, SANDY JULIEN WILHELM. The ISWC for this composition is T-903.823.362-4.
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. USUM72121870 is the ISRC for this recording; T-903.823.362-4 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 USUM72121870?

USUM72121870 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Firework” by Katy Perry. 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 T-903.823.362-4, 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?

KATHERYN ELIZABETH HUDSONComposerLyricist
IPI: 00292555933
WHEN I'M RICH YOU'LL BE MY BITCH OriginalPublisherIPI: 00514955051
WC MUSIC CORP. OriginalPublisherIPI: 00392888203
ESTHER RENAY DEANComposerLyricist
IPI: 00424491563
MIKKEL STORLEER ERIKSENComposerLyricist
IPI: 00233491970
EMI MUSIC PUBLISHING LTD OriginalPublisherIPI: 00087019563
TOR ERIK HERMANSENComposerLyricist
IPI: 00258732246
EMI MUSIC PUBLISHING LTD OriginalPublisherIPI: 00087019563
SANDY JULIEN WILHELMComposerLyricist
IPI: 00153644475

Who publishes this song?

WHEN I'M RICH YOU'LL BE MY BITCHOriginalPublisher
IPI: 00514955051
WC MUSIC CORP.OriginalPublisher
IPI: 00392888203
EMI MUSIC PUBLISHING LTDOriginalPublisher
IPI: 00087019563

Which contributors are credited?

0000 0000 7981 0882MIKKEL STORLEER ERIKSEN0000 0001 3100 1880MIKKEL STORLEER ERIKSEN0000 0003 7290 2321MIKKEL STORLEER ERIKSEN0000 0000 7371 737XKATHERYN ELIZABETH HUDSON

Identifier Graph

ISRCUSUM72121870ISWCT-903.823.362-4IPIKATHERYN ELIZAB…IPIESTHER RENAY DE…IPIMIKKEL STORLEER…IPITOR ERIK HERMAN…ISNIMIKKEL STORLEER…ISNIMIKKEL STORLEER…ISNIMIKKEL STORLEER…
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
Katy Perry

USUM72121870 is the International Standard Recording Code (ISRC) for the recording “Firework” by Katy Perry. 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 T-903.823.362-4. Written by KATHERYN ELIZABETH HUDSON, ESTHER RENAY DEAN, MIKKEL STORLEER ERIKSEN, and others.

Katy Perry

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Songwriter profiles

KATHERYN ELIZABETH HUDSONIPIESTHER RENAY DEANIPIMIKKEL STORLEER ERIKSENIPITOR ERIK HERMANSENIPISANDY JULIEN WILHELMIPI