The dataset can be downloaded from https://drive.google.com/file/d/10fBgqLazWCNJkRx-jNucYZHAH6LFq9r6/view?usp=sharing
All rumours which had search results should have corresponding URLs.
Unfortunately, you'll have to download evidence from the URLs yourself due to copyright law.
Please note that evidence counts will be slightly different to those in the paper, as the search process had to be re-performed to obtain URLs only.