I think there are a lot of reasons to use block chain and I think it would make things a lot more transparent for everyone. However what do you think of anonymous transactions? I know some people want to keep things such as their medical history private.
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There are different levels of access for certain info that does run into GDPR issues.
However for land, house or general asset information it would be no more than going to your local council office and browsing record. This would just let you see everything from home.
There are permissioned and permissionless blockchains out there where access is not allowed to everybody as well as encrypted data the requires certain keys to access. So there are ways to ensure safety but not to hide data form people that have the access to it.
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