I was tempted to say using indexed data in the chain might be acceptable.
It has a problem though, the transaction records themselves, just with the IDs, are private data. A history of a user can be recreated without knowing their personal details just from the history of transactions. It also probably isn't too difficult to establish your real identity given enough records -- a problem with "anonymous" web records already.
Would you say that the adoption of GDPR just killed the Blockchain technology and we cannot apply it anymore as it currently is or should we focus on a way to find a compromise?
There are plenty of uses that don't involve user data, or that would rightly be considered a permanent part of public record.
Whether ID->DB links are sufficient will remain to be seen.
It's also unclear as to whether the right to erasure/modification applies to both public and private data. If the blockchain is never shared publically can it contain any user data?
Maybe I should expand this thought experiment as an article.
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I was tempted to say using indexed data in the chain might be acceptable.
It has a problem though, the transaction records themselves, just with the IDs, are private data. A history of a user can be recreated without knowing their personal details just from the history of transactions. It also probably isn't too difficult to establish your real identity given enough records -- a problem with "anonymous" web records already.
Right ! Thanks for your feedback !
Would you say that the adoption of GDPR just killed the Blockchain technology and we cannot apply it anymore as it currently is or should we focus on a way to find a compromise?
There are plenty of uses that don't involve user data, or that would rightly be considered a permanent part of public record.
Whether ID->DB links are sufficient will remain to be seen.
It's also unclear as to whether the right to erasure/modification applies to both public and private data. If the blockchain is never shared publically can it contain any user data?
Maybe I should expand this thought experiment as an article.