Collatoralized Identity -- Tying a value asset to an Identity

Executive Summary

This post proposes the notion of a Collateralized Identity which ties a
value asset balance and its history to a globally unique identifier. Such a
CID thus becomes a means to verify the identity�s age and balance history
and can eliminate the problem of disposable sockpupptet identities.
Further, it proposes to use bitcoin addresses as the implementation.
Bitcoin provides both a means to attach value to a GUID, and to make the
balance history of the GUID publicly available and easy to verify.

[Read More]

http://joecascio.net/joecblog/2013/03/25/collateralized-identity-using-bitcoin-to-suppress-sockpuppets/

Seems a neat idea!  I wonder if it's also possible to implement this using
Linked Data ...