How do we know who is real and who is not. We often take it on trust that an account on a social networking site is controlled by the the person we think controls it, but this is not always so. Celebrity accounts on social networking sites are often fake. We have protocols to help, but they are not accessible to the "man in the street", and all require a trusted end point. Can we create a solution to this, preferably distributed, and probably utilising a web of trust.

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