In this paper we propose a new probabilistic Fair Exchange Protocol which requires no central Trusted Third Party. Instead, it relies on a virtually distributed and decentralized Trusted Third Party which is formalized as a Guardian Angel: a kind of Observer e.g. a tamper proof security device. We thus introduce a network model with Pirates and Guardian Angels which is well suited for Ad Hoc ne...

Abstract This critical response to Dominic Smith’s ‘Taking Exception: Philosophy of Technology as a Multidimensional Problem Space’ begins by outlining the key contributions his essay, namely insightful approach transcendental, on one hand, and introduction topological problem space an image for thought, other. The then suggests ways furthering this addressing potential reservations about deter...