[Cryptography] Eudaemon: A peer-to-peer electronic identity system

[Agathos]

> So what's the use of publishing a blockchain of ciphertext?  Well, you
> can use that commit to plaintext to be revealed later by revealing the
> decryption key(s).  And you can use this to share data with others who
> have the decryption keys already.

This is almost exactly correct, except that the network participant does
not publish their chain, but rather privately syncronises it with their 
trusted peers. At the same time their nodes syncronise the chains of
their trusted peers with the peers of their trusted peers. This is how
the small world topology is formed.

In a small world topology, with each degree of seperation, or network
hop away from the point of origin the information available about that
point of origin diminishes. 

By using the personal blockchain model we can enable backwards secrecy
and forwards secrecy as well as backwards transparency and forwards
transparency.

The architecture enables identity recovery and core dataset recovery
without the need for central authority using Proof of Human consensus.
This mitigates the event of a total data loss, all your devices gone,
backups gone, passwords gone/forgotten and internet accounts gone, the
human can deterministically rebuild their digital state and validate
that it has not been manipulated prior to recovery. As long as enough
guardian nodes still exist to meet your Shamir Secret Sharing System
threshold this is possible.

The system uses double encryption. Both at the file system layer and at
the transport layer. Both of which use cv25519 currently. 
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