Perhaps the biggest cause of missed revenue and undetected rights conflicts is poor matching. When an ISWC is present (and correct) the match is easy. But in our experience only about 30% of the songs in publisher databases have an ISWC. Blokur now uses our new graph-based matching, which ensures that your song registration will be matched to what other publishers are claiming for that song with or without an ISWC.
Source: Leaving Beta — Three things for music publishers to look out for in the new Blokur