There are a number of specialist topics in organisational OPSEC and concepts that need to be defined before going into…

There is a definitional distinction between the legal use of the term “non-repudiation” and the common use that has taken…

Some time ago Hilary E Pearson (1996) noted that, “in many cases, liability will depend upon how a court faced…

The Bitcoin system may be broken down into the following “phases”: Mining; Holding Bitcoin; and Transferring Bitcoin. Each of these…

In its simplest form, a bitcoin transaction involves the creation of an entry in a ledger. The value on the…

The exchange of bitcoin for other currencies clearly comes under existing AML[1] regulations, and where an exchange[2] has been used…

Background In a fair exchange protocol two parties either both honour an exchange (such as a contract), or neither of…

As Bitcoin does not need to be held or processed by a financial institution[1], many people have concluded that they…

This post is the first in a series to describe a number of important methods that are needed in creating…

In this scenario, Bob decides to publish his ownership of an asset (e.g. his home) onto the Blockchain. Nothing else…

This is a slightly enhanced version of scenario 1 where Bob wants to publish the asset onto the Blockchain, but…

In this situation, Bob takes out a lease contract with Eve for a fixed term of three years. The terms…