There is widespread experimention with blockchain technology by government, academia and industry.
For example, the majority of central banks are experimenting with blockchain/distributed-ledger technology:
https://qz.com/1083712/one-in-five-central-banks-say-they-wi...
NASA is researching using blockchain technology for spacecraft navigation:
https://www.uakron.edu/engineering/ECE/news-detail.dot?newsI...