ISRC
So Hard2
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USLF20600610 is the International Standard Recording Code (ISRC) for the recording “So Hard” by Ciara, released 2006-01-01. 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-306403120-1. Written by BRYAN MICHAEL PAUL COX, BALE'WA M MUHAMMAD, CIARA PRINCESS HARRIS, and others.
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USLF20600610 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “So Hard” by Ciara. 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-306403120-1, 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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USLF20600610 is the International Standard Recording Code (ISRC) for the recording “So Hard” by Ciara, released 2006-01-01. 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-306403120-1. Written by BRYAN MICHAEL PAUL COX, BALE'WA M MUHAMMAD, CIARA PRINCESS HARRIS, and others.
