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  3. GBAYE0000815

ISRC

GBAYE0000815

Optimistic✓2

Radiohead
matched
Released 2000-01-01

Last verified: July 10, 2026

GBAYE0000815 is the International Standard Recording Code (ISRC) for the recording “Optimistic” by Radiohead, released 2000-01-01. 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-010400834-5. Written by THOMAS EDWARD YORKE, COLIN CHARLES GREENWOOD, JONATHAN RICHARD GUY GREENWOOD, and others.

Format

GBCountry
AYERegistrant
00Year (2000)
00815Designation
Country:
ISO 3166-1 alpha-2 country code (GB).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2000):
Last two digits of the reference year (2000). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCOptimistic
ISWCOptimistic
IPITHOMAS EDWARD YORKE

Musical Work (ISWC)

T-010400834-5Optimistic

People also ask

What is the ISRC for "Optimistic" by Radiohead?+
The ISRC for "Optimistic" by Radiohead is GBAYE0000815.
Who wrote "Optimistic"?+
"Optimistic" was written by THOMAS EDWARD YORKE, COLIN CHARLES GREENWOOD, JONATHAN RICHARD GUY GREENWOOD, EDWARD JOHN O BRIEN, PHILIP JAMES SELWAY. The ISWC for this composition is T-010400834-5.
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. GBAYE0000815 is the ISRC for this recording; T-010400834-5 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 GBAYE0000815?

GBAYE0000815 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Optimistic” by Radiohead. 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-010400834-5, 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?

THOMAS EDWARD YORKEComposer
IPI: 00178210867
WARNER CHAPPELL MUSIC LTD OriginalPublisherIPI: 00160187388
COLIN CHARLES GREENWOODComposer
IPI: 00178205758
WARNER CHAPPELL MUSIC LTD OriginalPublisherIPI: 00160187388
JONATHAN RICHARD GUY GREENWOODComposer
IPI: 00178205856
WARNER CHAPPELL MUSIC LTD OriginalPublisherIPI: 00160187388
EDWARD JOHN O BRIENComposer
IPI: 00178208847
WARNER CHAPPELL MUSIC LTD OriginalPublisherIPI: 00160187388
PHILIP JAMES SELWAYComposer
IPI: 00178209648
WARNER CHAPPELL MUSIC LTD OriginalPublisherIPI: 00160187388

Who publishes this song?

WARNER CHAPPELL MUSIC LTDOriginalPublisher
IPI: 00160187388

Which contributors are credited?

0000 0001 3148 3760COLIN CHARLES GREENWOOD0000 0001 1681 6029JONATHAN RICHARD GUY GREENWOOD0000 0000 7841 284XEDWARD JOHN O BRIEN0000 0000 7841 2006PHILIP JAMES SELWAY0000 0001 1444 1825THOMAS EDWARD YORKE

Identifier Graph

ISRCGBAYE0000815ISWCT-010400834-5IPITHOMAS EDWARD Y…IPICOLIN CHARLES G…IPIJONATHAN RICHAR…IPIEDWARD JOHN O B…ISNICOLIN CHARLES G…ISNIJONATHAN RICHAR…ISNIEDWARD JOHN O B…
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
Radiohead

GBAYE0000815 is the International Standard Recording Code (ISRC) for the recording “Optimistic” by Radiohead, released 2000-01-01. 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-010400834-5. Written by THOMAS EDWARD YORKE, COLIN CHARLES GREENWOOD, JONATHAN RICHARD GUY GREENWOOD, and others.

Radiohead

Related

Other versions of this workView all on iswc.fm

Optimistic

Radiohead

GBAYE0001033
Optimistic

Radiohead

GBCAD0900493
OPTIMISTIC (ORIGINALLY PERFORMED BY RADIOHEAD) - KARAOKE VERSION

MIDIFINE SYSTEMS

DESN31323385
OPTIMISTICBGA672007513

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Songwriter profiles

THOMAS EDWARD YORKEIPICOLIN CHARLES GREENWOODIPIJONATHAN RICHARD GUY GREENWOODIPIEDWARD JOHN O BRIENIPIPHILIP JAMES SELWAYIPI