ISWC · Musical Work

T-306400681-7

I DON'T KNOW

79 recordings

Last verified: October 16, 2026

The ISWC for “I DON'T KNOW” is T-306400681-7. ISWCs are ISO 15707 identifiers managed by CISAC; they identify the underlying song — its melody, lyrics, and arrangement — rather than any single recording. One composition can have many recordings (ISRCs). This work has 79 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

306400681Work number

7Check digit

Prefix:: "T" = musical work; "W" = work in progress.
Work number:: 9-digit unique work number assigned by CISAC.
Check digit:: ISO 7064 Mod 11-2 check digit that validates the rest of the code.

Credit Chain

ISRC79 recordings

ISWCI DON'T KNOW

Previously known as

T-306969697-1

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

00236591555 00354130886 00335785045 00750542358 00336105787

Creative Contributors (ISNI)

0000 0000 0187 8019 0000 0000 7880 013X

SourcesCISACMLCMusicBrainzNotes Credits4 sources

Verified on

CISAC ISWC registry search

Identifier Graph

What is ISWC T-306400681-7?

T-306400681-7 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “I DON'T KNOW”. ISWCs are defined by ISO 15707 and managed by CISAC. Unlike ISRCs which identify recordings, an ISWC identifies the underlying song — the melody, lyrics, and arrangement.

This work has 79 recordings (ISRCs) associated with it. Each recording represents a distinct version — such as the original, a remix, a live performance, or a cover — that shares the same underlying composition.

T-306400681-7

Format

Previously known as

What other identifiers does this connect to?

Verified on

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What is ISWC T-306400681-7?

T-306400681-7

Format

Previously known as

What other identifiers does this connect to?

Recordings (79)

Verified on

People also ask

What is ISWC T-306400681-7?

Recordings (79)