Blockchain is coming to a function or government near you.
I had always thought of blockchain as being specifically associated with bitcoin. However, the uses of the "distributed ledger" technology is going to expand rapidly for many other functions. Likely you will hear about the technology being applied to other aspects of our functioning society.
This GAO two-pager, Blockchain & Distributed Ledger Technologies, has some good information and explanation of how the distributed ledger technology works. We might even see it being incorporated into emergency management in the near future.