  One of the fundamental applications for a practically useful system of money
is remuneration. Information pertaining to the amount of compensation awarded
to different individuals is often considered sensitive, commanding a certain
degree of privacy. As Bitcoin and similarly designed cryptocurrencies evolve
into a recognized medium of exchange for larger swaths of the world economy, an
increasing number of people will earn income in the form of blockchain-based
payments. The nature of these transactions is such that the minute details of
an affected individuals compensation package and spending habits will be
exposed to public scrutiny. In some cases this violates cultural norms which
respect the confidentiality of salaries, yet in other cases it could be
regarded as providing the benefits associated with greater transparency. In
this work we analyse the Bitcoin blockchain record of periodic payments
accruing to an individual address in exchange for goods or services rendered.
For differing levels of available information we seek to determine the extent
of insights that can be gleaned about the transacting counter-parties and the
privacy implications this entails.

Computers and Society