This post is by =andy.dale from The Tao of XDI
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So I'm reading Neal Stephenson's latest novel 'Fall'... In Chapter 11 he introduces PURDAH... Personal Unseperable Registered Designator for Anonymous Holography.
He explains that Holography is from the original meaning of the term:
"A holograph is a document written entirely in the handwriting of the person whose signature it bears. Some countries (e.g., France) or local jurisdictions within certain countries (e.g., some U.S. states) give legal standing to specific types of holographic documents, generally waiving requirements that they be witnessed. One of the most important types of such documents are holographic last wills." - https://en.wikipedia.org/wiki/Holograph
"So it's just an anonymous ID, with a fancy name?", Corvallis asks...
No, PURDAHs are all registered in distributed ledger technology so their veracity can be verified at any time. Unseperable means that no one can take it away from you, as long as you take reasonable precautions...
At least Neal seems to be paying attention!