ISRC
Song: WHAT YOU DONT KNOW
Last verified:
The ISRC for “What You Don’t Know” by Anti-Flag is TCACK1524096. 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 1999-03-23. The underlying musical work is ISWC T3063985688. Written by CHRISTOPHER MARK HEAD, JUSTIN CATHAL GEEVER, PATRICK C BOLLINGER.
Credit Chain
TCACK1524096 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “What You Don’t Know” by Anti-Flag. 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 T3063985688, 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.
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MLC Song Code
The ISRC for “What You Don’t Know” by Anti-Flag is TCACK1524096. 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 1999-03-23. The underlying musical work is ISWC T3063985688. Written by CHRISTOPHER MARK HEAD, JUSTIN CATHAL GEEVER, PATRICK C BOLLINGER.
