LOL. I'm not going to deanonymize datasets for an internet stranger. Certainly not for free, but also not at any hourly rate unless I know that the organization employing me either has the original non-anonymized dataset or at least have very strict internal controls about how deanonymized data will be handled.

(I also haven't done this work in a LONG time, and there's now a whole lot of academic work on the topic that didn't exist back then, so there are probably much better consultants for legitimate organizations looking to hire for this work.)

If you want proof, you can use google to find LOTS of papers along these lines analyzing real datasets. I think https://arxiv.org/pdf/cs/0610105.pdf is a fairly typical example.

I work with large private K-12 datasets regularly. Even as a passer-by, we had one for a big government-issued dataset in Australia. It might’ve been census data? It might’ve been just over five years ago? I actually don’t care. The principles of effective data anonymisation, esp. in education, are understood by people that actually work in this area. It seems odd to be so demanding.

I’ve noticed a trend on commenters making these sorts of demands. I can’t tell if it’s a new (particularly dumb) rhetorical ploy or if they’re just looking for free labor.