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Re:Using blockchain for identity management is mostly ridicu... by jjawssd on Monday October 09, 2017 @06:20PM (#15437917)
> scan a fingerprint (to establish identity)

> annually update information about themselves onto the blockchain (how?)

What could possibly go wrong? Fingerprints alone should not be used as a key.

Re:Using blockchain for identity management is mostly ridicu... by yyyyip on Monday October 09, 2017 @08:34PM (#15438480)
I don't mean using the fingerprint as a key.

I mean that if you can produce a fingerprint image corresponding to a blockchain hash and it matches your fingerprint 20 years later, and this is linked to 20 years worth of blockchain recorded credential information, I would find that very compelling evidence that you are who you say you are.

Re:Using blockchain for identity management is mostly ridicu... by dane-pgp on Monday October 09, 2017 @09:37PM (#15438691)
This idea of having 20 years of linked entries in an append-only distributed log is very powerful, and is the basis for the "idchains" system discussed here:

https://www.youtube.com/watch?v=xZC98s4paYY

It controversially opts to use faces rather than fingerprints, but faces are easier for humans to verify, especially without special hardware.

I don't think the video describes a complete system, but the idea has merit and I wish it had been developed more.

Re:Using blockchain for identity management is mostly ridicu... by somenewacc on Tuesday October 10, 2017 @01:22AM (#15439555)
Fingerprints change (sometimes radically). Relying on them may make you unable to prove you're yourself.
Re:Using blockchain for identity management is mostly ridicu... by jjawssd on Tuesday October 10, 2017 @12:47PM (#15443264)
What you described is identical to a key