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A comment on Where are all the crypto use cases?. Parent comment

Re:Where are all the crypto use cases? by shafyy on Tuesday June 21, 2022 @03:06AM (#31821014)
Not the person you're responding to, but my view on this is: Having one online identity that is publicly viewable by everbody is a privacy nightmare. Yes, I know that it's pseudonymous, but it's possible for a sufficiently motivated entity to find out who is behind a pseudonym.
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Re:Where are all the crypto use cases? by somebodythere on Tuesday June 21, 2022 @04:00AM (#31821450)
Zero-knowledge cryptography allows you to post opaque data to the blockchain and selectively reveal properties of it to chosen people and applications.

For example, a zero-knowledge DID can generate a proof to an age-restricted application that you are over 18, without necessarily revealing your birthdate or any other information about yourself.

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Re:Where are all the crypto use cases? by captn3m0 on Tuesday June 21, 2022 @04:21AM (#31821584)
And this is already covered by the DID/VC W3C specs that don’t need a blockchain. An age restriction in particular will _always require the blessing of a central party_.
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