Topic: Why not "COVID" vaccine passports on a blockchain ID - page 3. (Read 474 times)

It is completely different. For example, if I have been vaccinated by a health official, I will be given the credential about it (and remain to me alone), and also be validated on the decentralized ledger which can be verified through a form that will be given me with a specific cryptographic key which will serves as prove. The form with the specific cryptographic key key will be used to verify if truly I am recorded on the blockchain as one of the people that has been vaccinated. If I want to manipulate in this case, before I can manipulate anything, I will have to make a deal with a health official that do vaccinate people to help me validate a form with a cryptographic key on blockchain. Without this, no way to manipulate, but not compared to physical documents that I can make the fake ones from anywhere which is a lot easier.

This is a way our credentials (data) can be safe, it will remain with us than on a third party database, only the form will be on blockchain which has no credential of us. Unlike physical credentials in which blockchain is not used, there must be a database for collecting our vaccination data report. And the positive thing about this is that, it is the method suggested to be used, which will help protect peoples data from third party, although, still at its earliest age.

There, @franky1 already said it. Vaccine passports are just one time use so I agree with @franky1's argument that vaccine passport is useless. Not to mention that there are other anti-tampering tools that the government is using to prevent that possibility, you all act like the government hasn't encountered this kind of problem before just to justify that blockchain or anything related to it is needed. Not to mention that it would be a bother for the government who doesn't want unnecessary spending to create their own blockchain network or risk having to hitch in the current network that is already congested.

It is great idea, yes. But I do agree with you, most governments will find it difficult to implement as most of them don't even have the grasp of how blockchain technology works. But if one country will apply blockchain tech on this endeavor and be successful, that will be a good example to other countries, and can be replicated easy. We only need one country to implement blockchain tech on this task and be a guinea pig. I hope we will see that day to happen.

a blockchain is about chaining blocks where it can show a change of current status overtime via new blocks.. but traceable back to source, also works best if the entire network has all the data.

a covid certificate is a single entry that does not need to be 'spent' so needing new proceeding blocks is a useless feature.

there are other validation methods that dont use a chain and dont require all nodes to hold all data of the entire network

..
take simple message signing feature bitcoin uses.
imagine US health department has a list of registered vaccine centres.
it lists their public keys

having a registered vaccine centre sign a message that includes:
the persons passport number(no name no address no details. just number)
day
and what number in the vaccine queue

then each signature is unique and can be verified it was signed by a registered vaccine centre without needing to hold that data on a database
they just check the public key against the health department list.
then use the public key against the message and signature independently(no special network)

no databases no secret network. just signatures and public keys
the airline can then check the passport number in the message matches the passport number of the passenger. and boom. check complete. no vaccine database needed to be shared with airlines. no personal info revealed, no way for passengers to trade certificates

It's a good idea but with the time frame I don't think it can be implemented, vaccination is already implemented and now ongoing, every country has its own system, to track who gets it first and when he will get it, in my country alone with the limited incoming vaccine, we have set of people who will get it first, it will take a year before everybody here gets vaccinated.

This.

I don't see a good enough reason for blockchain to come in between of Covid-19 vaccination. Every country has their own way of vaccinating their people; Some of them use centralized medical record IDs that track each patient and their history.

And besides you're forgetting the point that all countries have started their vaccination process, upgrading their system midway through will only be chaos. Also, not everyone is equipped to understand blockchain. People find excel hard, let alone blockchain. I can make so many more arguments but this should suffice.

Read: Not everything needs to be decentralized. Not everything needs to be centralized. There needs to be a bridge across these two.

First of all, I will like to address the issue of third parties, with this method, our information are sold just like the way big companies like Amazon, Facebook and Google are selling our data. If big companies like these can sell our day, why can't other companies do just the same, of this way is continuingly to be followed, it will not let peoples private information to be safe, which is the reason we truly need decentralized identity.

Also it will be good to go against the use of physical documents because they can be easily forged
There will be nothing like "COVID" vaccine passports on a blockchain ID, nothing like individuals identity (be it passport or any other identity) that will be stored on the decentralized distributed ledger, it will be verifiable credentials that will be used, which is a form that does not contain any individual information but a form that validate that someone has been vaccinated, in this way, users data remains to the users privately.

I agree, a database would do (not really excel, but you have a point).

I was thinking at first that there's a risk that somebody could alter records there (make fake passports). But then somebody can just add records to blockchain and it's the same result.
And maintaining a database is much much easier and cheaper than for a blockchain.

Let's not use blockchains just for the sake of it, OK?

"Why not "COVID" vaccine passports on a blockchain ID" - because centralized database - simple excell sheet with ID and yes/no annotation in second column is good enough in such case. What extra use case bring blockchain here?

Plausible, but I think governments don't have the luxury of time to actually be exploring new areas of proving something just because the technology already exists. While nice to have a single scan to prove X already had vaccine, the transition towards such protocols would be hard on some citizens which aren't used to these things. Perhaps a gradual transition would be good, but right now stick to basics while the experts perfect the tech.

it would be a safe, secured, difficult to tamper and widely available method of travelling and proving that an individual has had a vaccine. No borders, no language, no need to carry papers around. just you bio linked a a recognised signature and you are good to fly. Perhaps this looks too futuristic, but the technology is already there and could be a great testing ground.