Why not "COVID" vaccine passports on a blockchain ID

[Charles-Tim]

Ofcourse (at the bolded). 
In addition to that, a true Decentralized ID has to be privacy/anonymity friendly, ID private information has to be controlled/known by their owners alone, ID verifiers must not be able to store users IDs in anyway, etc

Decentralized ID Scheme has to unique and safer than the centralized ones.

You are almost totally correct except representing privacy for anonymity, they are completely different. The verifiable identity will only make privacy to be reality but it is not anonymous as the distributed ledger (blockchain) is not anonymous but private because only your cryptographic key can be used to access your vaccination validity. Anything anonymous is what anyone do not know about except you, so using it in this regard is not correct, but privacy is correct in this regard.

[franky1]

you dont need a database.
you can instead just have smart contracts

imagine a vaccine centre signs with their keypair a message of
patient ID: <your personal publickey>
date: 12/3/21
batch: 143

that signature is proof you got vaccinated by that vaccine centre.
each signature is unique but each signature has a validation method.

you can carry around that signature and that signature can verify its contents. with a simple check
you can prove you are that patient by you signing your own message that corresponds to your public key

no database. no blocks no chains needed
airlines dont need access to all patient records. dont even need to validate all records on some database
they just ask for the signature from those wanting to fly

[Argoo]

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.

Yes, I completely agree with you. It is quite possible to make a unified record of vaccination passports at least at the level of each state with open access based on the blockchain and it would be economically profitable. If the coronavirus does not recede for a long time, then, perhaps, as a result, governments will think of it. In a paper version, it is very expensive, and they will certainly be forged. Ordinary closed databases of such databases can be compromised. Such a blockchain-based framework is the perfect solution.

[ulhaq]

you dont need a database.
you can instead just have smart contracts

imagine a vaccine centre signs with their keypair a message of
patient ID: <your personal publickey>
date: 12/3/21
batch: 143

that signature is proof you got vaccinated by that vaccine centre.
each signature is unique but each signature has a validation method.

you can carry around that signature and that signature can verify its contents. with a simple check
you can prove you are that patient by you signing your own message that corresponds to your public key

no database. no blocks no chains needed
airlines dont need access to all patient records. dont even need to validate all records on some database
they just ask for the signature from those wanting to fly

I think this is a really good solution. It's low cost, secure, and can be used internationally. I would include the type of vaccine (eg, Sinovac, Pfizer, etc) because it might turn out that some of them do not work. Also one would need to keep each message, for the first vaccine, second vaccine, booster shot, etc, and the business could look at all of this information to determine if a person is 10 days out from the 2nd vaccine (if it is a 2-vaccine series).

[ulhaq]

One drawback is ppl could sell their private key. There does not seem to be any way around it, except to embed something about the person's identity (eg, name) into the message, and have the person show their photo ID to the business. But that is a tradeoff of privacy for security.

[Twentyonepaylots]

Because it will take more time and will incur more money. Plus technological barriers will make it so people will have an excuse not to be vaccinated, so although the paper COVID passport may seem primitive to some of us, It's simplicity and accessibility ensures that everyone can use its features without too much effort incurred on one side. Unlike digitizing the passport, where some of us still has a flip-phone instead of a smartphone in hand.

[iv4n]

Because it will take more time and will incur more money. Plus technological barriers will make it so people will have an excuse not to be vaccinated, so although the paper COVID passport may seem primitive to some of us, It's simplicity and accessibility ensures that everyone can use its features without too much effort incurred on one side. Unlike digitizing the passport, where some of us still has a flip-phone instead of a smartphone in hand.

Valid point! But I have a question, why "covid vaccine passports" at all?! And a concern, how covid vaccine passports are related to the economy? Except for the ones who will be paid for making them...they can earn some money for their "special passport design" that cost a lot, and of course, the money is coming from our own pockets! So there's some money involved, so there must be some economy, right?!

This is probably a service discussion... is it possible to make something like this, and to be accessible for all the people in all parts of the world... pros and cons, problems and solutions... like I said, some service!

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

Nice! I can't agree more with you here!

[Kong Hey Pakboy]

So is a standard RFID, seriously we don't have to put blockchain in somewhere that isn't necessary when there are other things that could do the same work at more efficient levels and more cheaper. If it ain't broke, don't fix it right?

[Dusang1998]

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.

it has its good and bad, people doesnt want anyone to track them, on the other hand it has possitive sides, finding people, checking health etc..

[Dusang1998]

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.

yeah except for some countries want exact vaccine to pass borders. You cant get all vaccines

[AicecreaME]

Regarding about the vaccine, being vaccinated doesn't mean you're COVID-19 free so you're free to travel whenever you want thinking you're safe from the virus. A lot of people here in my country are vaccinated already but somehow still, some of them still gets COVID-19.

But regarding about the Blockchain Identity, I would say it's very convenient and easy to use rather than bringing your passport that could be misplace or stolen by someone which would be hassle for you when you're travelling. It's a good thing if Governments would implement such kind of innovation in the future.