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• Log distribution for critical systems.
• Medical systems
• IoT command distributions
• military codes
• robot logs
• car logs
• personal data within the government
• Log police / agency access onto a government database

such thing basically everything where you don't want people to falsify things and prove that they can't do it.

That is where to me a blockchain shines. If we would just extract certain parts there is a multitude of other applications.