Ok, we've changed to that (first) link from https://www.toptal.com/algorithms/shazam-it-music-processing.... Thanks!

Related:

Patent infringement claim re: “Creating Shazam in Java” blogpost (2010) - https://news.ycombinator.com/item?id=9594480 - May 2015 (18 comments)

Source code example of the Shazam algorithm - https://news.ycombinator.com/item?id=5724442 - May 2013 (16 comments)

Creating Shazam in Java - https://news.ycombinator.com/item?id=5723863 - May 2013 (42 comments)

Implementing Shazam with Java in a weekend - https://news.ycombinator.com/item?id=1702975 - Sept 2010 (22 comments)

Told to remove blog posts describing patented algorithm - https://news.ycombinator.com/item?id=1496683 - July 2010 (147 comments)