Will GDPR kill blockchains?

Will the new European privacy law kill blockchains? On first sight they seem incompatible with each other. So let's take a closer look!

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[HITD]

The way you presented is perfect. Really loved your lectures regarding blockchain

[Leoninmiami]

Yes! please make a video about ZKP. Something a little more advanced than the simple explanations already available.

I’d love to see a video about zero knowledge proof!
Thank you for these videos! We’re playing around with an internal blockchain at work (with inspiration from your JavaScript implementation) and discussed how to conform to GDPR yesterday. (No joke!) Again, thanks for the inspiration!

[luciano-]

The controller is not the one how storages the personal information. If you start from that point, some mistakes arise.

[zenxd]

Hey i don't understand if we are only able to convert data into hash value then how can we read that data without converting it into hash to data? Can you explain please!

[astro.sergiu]

That was a great video as always! Keep it up!
Indeed more info on ZKP would be very interesting to see, especially explained by you

[Joao_]

Once we generated our wallet our selves, how do we buy our first coins?

[gurintto]

Could blockchain nodes not just delete blocks but keep the hash of the block? Wouldn't it still validate, as each new block is just the hash of the new data combined with the hash of the previous block? The actual data in the previous block is not required so the block can still be validated even with holes in it?

[Versus-A]

The Hash is referring to the personal data in the private server. But if we change the info in the private server, does the block (and the entire blockchain) mantain his integrity?

[RyanPaton]

This is a really interesting topic. I'd love to hear more about zero-knowledge proofs. Thank you for doing these videos!

[gurintto]

Definitely need an example of zk proofs. Even just the simple example of proving one's age without revealing it.

[maksimivanov]

Maybe a naive idea, but why can't a blockchain protocol be improved to implement the distributed data removal on every participating node? Say, create a distributed database of "to be deleted" records, and every participant is expected to clear these records in their locally stored copy (and if a participant violates doing so, they become violating the GDPR). This database can be periodically cleared (e.g., by pruning records older than X), and in order to participate in the network a node would be expected to use the blockchain snapshot that has all records older than X removes as well. Why wouldn't that work?

[kellyjohna]

Sounds like it will be good for privacy coins. But also if Europe ceases to exist as a political entity how will they enforce laws ?

[PLaXe]

Great review of GDPR and Blockchain! ZKP video will be super!

[BasBastiaansen]

I don't get why this is a problem, on a decentralized public blockchain, you own your data through your private key, this means that it is controlled by yourself! Not by a company or other third party. Therefore, a decentralized public blockchain complies with GDPR by definition. However, many people don't own their private keys, because they use an exchange, which is a third party that controls your data. Exchanges hold your personal information on their centrally controlled servers, not on blockchain, therefore exchanges are data controllers that need to comply to GDPR. Decentralized public blockchains already comply by definition.

[Filipe]

Now I wanna know more about Zcash and ZKP!

[Carambuzzy]

Point 3 @6:30 is the technology used by unik-name project, except that they distribute the data to a large number of storage provider and incentivize them with network rewards.

[janikeuskirchen]

Please do a video on the Basic Attention Token and Brave

[guitarheroprince]

I see you've combined both formats. Its good I likey. Also definitely do a video of zero knowledge proofs. This channel provides some great insights which only a few channels do.

[felipeam]

Hey! It would be amazing have a video about ZKP. Some days ago I've been reading about zk-SNARKs, at the beginning I could follow major part of the proposal but at a certain point the scenario got kinda complex, mainly in the part related to the verification process.

I will be looking forward to this video!