It's fairly easy to provide cryptographic signing on records. You don't need the fullblown blockchain technology for that. Not trusting other partners isn't som

It's fairly easy to provide cryptographic signing on records. You don't need the fullblown blockchain technology for that. Not trusting other partners isn't something that was suddenly invented when the blockchain was invented. Untrustworthiness has been around as long as humanity has been. We've solved these problems a long long time ago.