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> I've been hearing about these use-cases for blockchain for years now ... and still waiting for actual production use.

Preserving the integrity of log files and other records is a very obvious and huge use case. Enterprise products have been on the market for years and have been put into use by companies like Ericsson and Lockheed Martin.

https://www.ericsson.com/en/press-releases/2014/9/ericsson-a...

https://news.lockheedmartin.com/2017-04-27-Lockheed-Martin-C...

https://www.rsyslog.com/doc/v8-stable/configuration/modules/...

https://github.com/GuardTime/ksi-tool



Did these projects actually go anywhere? Those press releases look very aspirational ... and are already a few years old.




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