ISRC
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The ISRC for “Now You Know” by Hilary Duff is USHR10421102. 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 2004-07-13. The underlying musical work is ISWC T-072213648-2.
Credit Chain
USHR10421102 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Now You Know” by Hilary Duff. 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-072213648-2, 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 “Now You Know” by Hilary Duff is USHR10421102. 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 2004-07-13. The underlying musical work is ISWC T-072213648-2.
Production
Label
Hollywood Records
Appears on
