We are making constant updates to the graph and our academic graph has grown considerably since 2016 KDD challenge! Unfortunately, the increased size and update frequency of the graph makes the blob download process impractical.
After some incredible engineering effort, were able to make our graph available through a new cloud API that is fast, scalable, and consistent.
For more details, visit: https://www.microsoft.com/cognitive-services/en-us/academic-knowledge-api
You will still have the ability to download the entire graph through multiple API calls. The size of our graph is ~300GB as of 02/21/2017. Make sure you have enough disk space and use parallel requests to maximize download speed.