$656 Million in Music Royalties Go Unclaimed: How Creators Can Find and Collect Their Share

A Hidden Black Hole in the Music Industry

In today's streaming-dominated landscape, how music creators earn income has fundamentally changed. Yet a little-known fact remains: vast sums that should be paid to songwriters and music publishers are sitting quietly in institutional accounts, unclaimed.

Recently, a developer on Hacker News launched a project highlighting that The Mechanical Licensing Collective (The MLC) in the United States currently holds a staggering $656 million in unclaimed royalties, and provided a tool to help creators check whether any of that money belongs to them.

Behind this figure lies a structural problem that has long plagued the music rights industry — the complexity of royalty distribution and lack of information transparency have caused countless musicians to miss out on income that rightfully belongs to them.

What Is The MLC? Why Does It Hold Massive Undistributed Royalties?

A Royalty Management Organization Born from Legislation

The MLC was established in 2018, originating from the Music Modernization Act (MMA) passed by the U.S. Congress. This legislation aimed to solve the licensing and distribution challenges of mechanical royalties in the digital music era.

Before the MMA was passed, the U.S. mechanical royalty licensing system had fallen severely behind the demands of the digital age. The previous system relied on a compulsory license mechanism established in the Copyright Act of 1909, requiring digital service providers to send a Notice of Intent to each individual songwriter rights holder. In the streaming era, where a single platform might host tens of millions of songs, sending individual notices was practically impossible. This led to companies like Spotify facing class-action lawsuits worth hundreds of millions of dollars for failing to properly obtain mechanical licenses. By creating The MLC as a collective management organization, the MMA established a one-stop blanket license mechanism that simplified the authorization process at a systemic level — but also concentrated the complexity of matching and distribution onto The MLC.

Mechanical royalties refer to fees paid to songwriters and music publishers when a song is copied or distributed in recorded form (including streaming plays, downloads, etc.). The concept dates back to the era of "mechanically reproducing" records in the early recording industry. On platforms like Spotify and Apple Music, every single play generates this type of royalty.

It's worth noting that the music industry involves many types of royalties. Alongside mechanical royalties, there are: performance royalties, generated when a song is publicly performed (such as radio broadcast, restaurant background music, or the public performance component of interactive streaming), managed by performing rights organizations like ASCAP, BMI, and SESAC; sync royalties, generated when music is used in film, TV, advertising, and other visual media; and master royalties, paid to the owners of the sound recording copyright. A single play on a streaming platform actually triggers both mechanical and performance royalties simultaneously, paid through different channels to different rights holders — this multi-payment pathway itself adds to the system's complexity.

Why Is $656 Million Unclaimed?

The MLC is responsible for collecting mechanical royalties from digital music services and distributing them to the correct rights holders. But the problem lies in:

• Matching difficulties: A song's sound recording and its underlying musical work (composition) are often owned by different entities, and matching the two requires accurate metadata.
• Missing metadata: Many independent musicians don't fully register their songwriting copyright information when releasing works, making it impossible for the system to match royalties with the correct payee.
• Information gaps: Creators simply don't know they're eligible for these royalties, nor do they understand the claiming process.

At the metadata level, the key identifiers connecting creators to their royalties include: ISRC (International Standard Recording Code), used to uniquely identify a recording; ISWC (International Standard Musical Work Code), used to identify the underlying composition; and IPI (Interested Parties Information), used to identify individual creators and publishers. When distributors upload music, if there's no clear mapping between ISRC and ISWC, or if creator split sheets haven't been properly registered, the system cannot automatically complete precise royalty distribution. It's estimated that approximately 20%-25% of works in global music databases have metadata errors or omissions.

When royalties cannot be matched to specific rights holders, these funds accumulate into what's known as "black box funds" — which is the source of the current $656 million.

Black box funds are not a new phenomenon of the digital age. In the era of physical records and radio, rights management organizations already faced the problem of unmatched income. The traditional approach was to distribute these unallocated funds proportionally by market share to registered members — meaning large publishers often received a disproportionate share of black box funds, while the actual rights holders (typically small independent creators) were excluded. The MLC has a similar mechanism: according to the MMA, if unclaimed royalties remain unclaimed after a specified period, they will be distributed by market share to registered copyright holders. This system design has sparked ongoing controversy, with critics arguing it essentially legitimizes the transfer of small creators' income to large corporations. This makes claiming royalties as early as possible particularly urgent.

What Problem Does the Royalty Lookup Tool Solve?

Lowering the Barrier to Royalty Claims

The core value of the tool created by this developer is lowering the barrier to accessing information. Previously, musicians needed to proactively learn about The MLC's existence, register an account, and individually cross-reference their catalog — a cumbersome and highly specialized process.

Through a simple search interface, creators can quickly check whether there are unclaimed royalties accumulated under their name or their works' names. This essentially takes information buried deep within institutional databases and presents it in a more user-friendly way to ordinary users.

Special Significance for Independent Musicians

This type of tool is especially important for independent musicians. Compared to artists signed with major publishers, independent creators typically lack professional rights management teams and are more likely to "fall through the cracks" in the complex royalty distribution system.

For a musician who has decent streaming numbers but has never systematically managed their rights, hundreds or even thousands of dollars in unclaimed income may have accumulated without their knowledge. And once the MLC's claiming deadline passes, this income that rightfully belongs to them will be permanently redistributed by market share, leaving independent creators with no possibility of recovery.

Deeper Insights into the Music Rights Industry

The Transparency Dilemma of Music Rights Data

Though small in scale, this project reveals a long-standing pain point in the music industry: the fragmentation and opacity of rights data.

Ideally, every song's creation, recording, distribution, and licensing information should be completely, accurately recorded and interconnected. But reality is that global music rights data is scattered across countless databases with inconsistent standards and frequent matching errors. This is precisely why there have been ongoing calls within the industry to establish a globally unified music work identification system. While the ISRC system promoted by IFPI (International Federation of the Phonographic Industry) and the ISWC system managed by CISAC (International Confederation of Societies of Authors and Composers) already exist, there's no mandatory interconnection mechanism between them, and their coverage and accuracy rates in practice still have significant room for improvement.

How Technology Can Improve Royalty Distribution Efficiency

From a technical perspective, solving the royalty matching problem is essentially a large-scale data cleansing and entity matching challenge. Entity matching is a classic problem in data science, referring to identifying records across different data sources that point to the same real-world entity. In the music rights context, this challenge is particularly complex: the same song may appear in different databases with different spellings, different languages, and different formats; creators may use stage names, have name spelling variants, or be attributed to different publishers across different works.

In recent years, companies like Audiam, Exactuals, and BMAT have used fuzzy matching algorithms, natural language processing, and machine learning to improve match rates. For example, audio fingerprinting technology can automatically identify recording content, then combine probabilistic models to associate it with composition databases. Nevertheless, fully automated matching still faces edge cases — such as copyright attribution for sampled works, co-creation recognition for improvisational performances — that still require human intervention to adjudicate.

While this Hacker News project is just a lookup tool, it embodies a trend: using technology to open up previously closed, specialized industry information to end creators, returning rights to those who deserve them.

Practical Advice for Music Creators: How to Claim Your Royalties

If you're a creator who has ever released original music, regardless of catalog size, the following points are worth your attention:

• Proactively search for unclaimed royalties: Use tools like this or visit The MLC's official website directly to check whether there are unclaimed royalties. Note that the MLC has set deadlines for processing unclaimed funds — after the deadline, funds will be redistributed.
• Complete your work metadata: Ensure your compositions are registered with relevant rights organizations, including accurate author, publisher, and ISWC information. When uploading music through distributors (such as DistroKid, TuneCore, CD Baby, etc.), be sure to fill in complete songwriter information and copyright split percentages.
• Distinguish between rights types: Understand the difference between sound recording rights (owned by the recording party) and composition rights (owned by the creator), and avoid missing income from either side. Also note that mechanical royalties (through The MLC) and performance royalties (through PROs like ASCAP/BMI) are two independent income streams that require separate registration and claiming.
• Regularly audit your royalty accounts: Royalty accumulation is ongoing — regularly check your account status and promptly claim newly generated income.
• Consider registering with rights management tools: For independent creators with larger catalogs, consider using rights management services like Songtrust or Sentric Music, which can register works on your behalf with multiple global rights organizations and track royalties.

Conclusion

$656 million in unclaimed royalties is a number that should shake the industry. On one hand, it exposes the inefficiency and information barriers of the current music rights system; on the other, it reminds every creator that the value generated by your work may be far more than you realize.

Whether it's this small project on Hacker News or broader industry reform, the direction is consistent — making it easier for creators to receive the compensation they deserve. In this sense, any effort that lowers information barriers and improves transparency deserves recognition.