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  3. USRZR1454604
Black Heart album cover

ISRC

USRZR1454604

Black Heart✓2

Song: BLACK HEART

I Declare War
matched
Released 2014-01-01

Last verified: August 25, 2026

USRZR1454604 is the International Standard Recording Code (ISRC) for the recording “Black Heart” by I Declare War, released 2014-01-01. 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 T-914979323-7.

Format

USCountry
RZRRegistrant
14Year (2014)
54604Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2014):
Last two digits of the reference year (2014). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCBlack Heart
ISWCBLACK HEART

Musical Work (ISWC)

T-914979323-7BLACK HEART

Credits Graph

MLC Song Code

BVBQYG
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

People also ask

What is the ISRC for "Black Heart" by I Declare War?+
The ISRC for "Black Heart" by I Declare War is USRZR1454604.
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. USRZR1454604 is the ISRC for this recording; T-914979323-7 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 USRZR1454604?

USRZR1454604 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Black Heart” by I Declare War. 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-914979323-7, 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

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USRZR1454604 is the International Standard Recording Code (ISRC) for the recording “Black Heart” by I Declare War, released 2014-01-01. 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 T-914979323-7.

I Declare War