alt Hacker NewsIt's worth noting that the particular recording they include[0] is not the original performance, it's a CC0 (public domain) recreation of the sample.
So the recording itself has no copyright attached, but yes, there's still a question of the copyright on the composition.
You might be correct but the link you've pasted is still of the original copyrighted breakbeat, not a recreation, on a site again falling victim to what it offers for free and Creative Commons not being free or Creative Commons.