Re: Use case

Moses, I think what are you trying to do in this use case, is to
comprehensively present human personality in the digital world (explain who
you are and who you are not in asynchronous one-to-many manner) and in the
same time retaining self-sovereign control over this presentation.

Presentation of human personality in the digital world  is easily done via
Social Networking Services.  The question is how to tie this presentations
to your SSI. This can be done via Verifiable Credential with evidence that
you control Social Networking account (digital asset).
Something like this -
http://futurama1x.validbook.org/identity/undefined/ownership-over-linkedin-account
Here
you see VC with evidence (linkedIn post) that proves that identity
realJimoFry777 owns account on LinkedIn (in this example, instead of the
current content on LinkedIn post imagine some challenge posted - some
random number).

Of course, if you wanted to have Social Networking Account itself be
self-sovereign, you would need to host it on some sort of blockchain, but
this is not possible for now as far as I understand. Maybe Christopher
Lemmer Webber will be able to explain here more, who judging by his blog
knows about this use case from his life, although with more  positive "name
twins": https://dustycloud.org/.  "... I am not this Christopher Allen nor
am I this Chris Webber..."


--Bohdan





On Wed, Jun 6, 2018 at 8:20 PM, Mike Lodder <mike.lodder@evernym.com> wrote:

> This scenario seems more like it could be implemented with proofs. You are
> proving you are not something or do not belong to a particular group like
> terrorists. This is similar to how no fly lists work. I could see the
> reason for a credential that you didn’t go to MIT but who would issue it
> and you would have to get many of these types of credentials. So I think
> sounds like a solution for proofs. I can think of various proof types:
> exact match like a name, predicates like income or age greater than or less
> than, and set memberships like not revoked, board certified, white list
> black list.
>
> ------------------------------
> *From:* Moses Ma <moses.ma@futurelabconsulting.com>
> *Sent:* Wednesday, June 6, 2018 10:02:43 AM
> *To:* Credentials Community Group
> *Subject:* Use case
>
> I have an additional use case, which is a sort of funny and entertaining,
> but may reveal a deeper utility.
>
> I have an “evil twin”, a fellow who shares my name - Moses H. Ma, whereas
> I’m Moses T. Ma. He is roughly my age and even looks a bit like me. The
> difference is that he went to MIT and I went to Caltech. Also, this Moses
> plays bridge and I don’t, and he was caught cheating on video at an
> international bridge tournament. I found out in senior year of college,
> when friends started ribbing me about playing bridge... I asked a friend,
> “Why the hell are people asking about playing bridge?” And he showed me a
> newspaper where this was the headline story, including a grainy video image
> of a guy that sort of looked like me, and you know... us Chinese guys, we
> all look alike to white people, haha.
>
> Anyway, our name may seem rare, but because there are only 100 Chinese
> surnames (one name for China is “land of a hundred surnames”), there are
> actually *lots* of Moses Ma’s. Joan Rivers used to joke about the Queen
> of England, “She has more chins than the Hong Kong phone book.”
>
> Once, a friend of mine heard my name being paged at the airport, and he
> went to the courtesy phone to say hi, and ran into the other Moses. Later,
> they were on the same flight, and he reported that he was one of the most
> foul-mouthed, venomous and bitter men he’d ever seen. He yelled on the
> phone at a subordinate for over an hour on an overseas flight, ruining the
> flight for everyone in the cabin. I then explained how this one negative
> event soured his life, and he replied “I’m so glad I got the good one for a
> friend.”
>
> Anyway, all my life, rumors about my evil twin have silently followed me.
> One time, this fellow I was doing a deal with suddenly got cold feet. He
> was associated with MIT, so I asked, “Is it the bridge thing?” When I
> explained about my evil twin, he was soooooo apologetic about participating
> in gossip and closed the deal immediately. I joked that it was God’s
> experiment: you put two equivalent Moses Ma’s into MIT and Caltech, and
> what happens... thus, scientific proof that Caltech is better than MIT.
>
> So here’s the use case: I’d like a DID that includes a verifiable claim
> that I did NOT go to MIT, do not play bridge, and am different from a guy
> with the same name that cheated at an international tournament and was
> exposed on video.
>
> However, realistically, we need to start with simpler use cases. But maybe
> this lifelong annoyance can lead to some thing useful. Perhaps including an
> indicator that the user’s identity has been stolen and offering special
> functionality for removing the negative impact of the identity thieves or
> data errors is an interesting possibility to consider for resilient
> decentralized identity.
>
> Moses
>
>
>
>
>