Show HN: Check if any of the $656M in unclaimed royalties at The MLC is yours
Summary
Doubly's Blackbox Checker helps artists identify unregistered or unclaimed royalties at The Mechanical Licensing Collective (MLC) by analyzing their Spotify catalog data and MLC distributions. The tool explains various status categories (Looks good, Needs matching, Missing shares, Fully unclaimed, Missing work, Not in MLC data) and lays out how the estimates are calculated, including what happens when royalties are in the “black box.” It emphasizes that the data is public, the tool is free and single-artist focused, and that it’s not affiliated with The MLC.