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  1. Home
  2. ISRCs
  3. USSM18000003

I Don’t Know✓2

ISRC

USSM18000003
Ozzy Osbourne
matched
Released 1980-01-01

Last verified: September 16, 2026

The ISRC for “I Don’t Know” by Ozzy Osbourne is USSM18000003. 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. Released 1980-01-01. The underlying musical work is ISWC T-900018482-7. Written by JOHN MICHAEL OSBOURNE, RANDY RHOADS, ROBERT DAISLEY.

Format

USCountry
SM1
Registrant
80Year (1980)
00003Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (1980):
Last two digits of the reference year (1980). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCI Don’t Know
ISWCI Don’t Know
IPIJOHN MICHAEL OSBOURNE

Musical Work (ISWC)

T-900018482-7I Don’t Know

People also ask

What is the ISRC for “I Don’t Know” by Ozzy Osbourne?+
The ISRC for “I Don’t Know” by Ozzy Osbourne is USSM18000003.
What is the ISWC for “I Don’t Know”?+
The ISWC for “I Don’t Know” is T-900018482-7. The ISRC USSM18000003 identifies this specific recording; the ISWC identifies the underlying musical work shared by all versions.
Who wrote “I Don’t Know”?+
“I Don’t Know” was written by JOHN MICHAEL OSBOURNE, RANDY RHOADS, ROBERT DAISLEY. The ISWC for this composition is T-900018482-7.
Who publishes “I Don’t Know”?+
The publishers credited on “I Don’t Know” include: BLIZZARD MUSIC LIMITED, UNIVERSAL MUSIC CORP.. These publishers administer the writers' shares in this recording's underlying composition. Credits.fm reports registered publisher credits, not legal copyright ownership.
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. USSM18000003 is the ISRC for this recording; T-900018482-7 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 USSM18000003?

USSM18000003 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “I Don’t Know” by Ozzy Osbourne. 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-900018482-7, 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

Ozzy Osbourne

The ISRC for “I Don’t Know” by Ozzy Osbourne is USSM18000003. 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. Released 1980-01-01. The underlying musical work is ISWC T-900018482-7. Written by JOHN MICHAEL OSBOURNE, RANDY RHOADS, ROBERT DAISLEY.

Ozzy Osbourne

Related

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USSM11002844
I Don’t Know (live 1981)

Ozzy Osbourne

USSM18700032
I Don’t Know

Ozzy Osbourne

USSM11102079

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Songwriter profiles

JOHN MICHAEL OSBOURNEIPIRANDY RHOADSIPIROBERT DAISLEYIPI
Mr. Crowley

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Who wrote this song?

JOHN MICHAEL OSBOURNEComposerLyricist
IPI: 00059623948
BLIZZARD MUSIC LIMITED OriginalPublisher0.00%IPI: 00139221098
UNIVERSAL MUSIC CORP. RightsAdministrator100.00%IPI: 00031312147
RANDY RHOADSComposerLyricist
IPI: 00125167590
BLIZZARD MUSIC LIMITED OriginalPublisher0.00%IPI: 00139221098
UNIVERSAL MUSIC CORP. RightsAdministrator100.00%IPI: 00031312147
ROBERT DAISLEYComposerLyricist
IPI: 00145601691
BLIZZARD MUSIC LIMITED OriginalPublisher0.00%IPI: 00139221098
UNIVERSAL MUSIC CORP. RightsAdministrator100.00%IPI: 00031312147

Who publishes this song?

BLIZZARD MUSIC LIMITEDOriginalPublisher
IPI: 00139221098
UNIVERSAL MUSIC CORP.RightsAdministrator
IPI: 00031312147

Which contributors are credited?

0000 0001 1576 4634Ozzy Osbourne0000 0003 6859 9630Ozzy Osbourne0000 0000 8138 6822Randy Rhoads0000 0000 7838 7410Bob Daisley

Identifier Graph

ISRCUSSM18000003ISWCT-900018482-7IPIJOHN MICHAEL OS…IPIRANDY RHOADSIPIROBERT DAISLEYISNIOzzy OsbourneISNIOzzy OsbourneISNIRandy Rhoads

MLC Song Code

I09960
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record