Hello,

I'm attempting to replicate the re-identification risk experiment detailed in the paper "Measuring Re-identification Risk." However, I'm encountering difficulties in accessing the Million Song Dataset, which was used in the empirical analysis. Unfortunately, the Echonest website appears to be down, preventing me from obtaining the necessary API key to access the dataset.

I would greatly appreciate any guidance on how to obtain the Million Song Dataset and replicate the experiment's results. Additionally, I'm seeking information on attribute mappings for the MSD dataset, specifically to simulate a scenario similar to the Topics API, which requires data such as browser history and the frequency of visits within a week for topic calculations.

Thank you for your assistance.

Best regards,
Yash Maurya