, the application submitting a transaction will be using an X.509
certificate. In the [example](#structure), an X.509 certificate <strong>(6)</strong> issued
by <cite>CA1</cite> <strong>(7)</strong> is being used by <cite>Isabella</cite> <strong>(8)</strong> in her application to sign
the proposal in transaction <cite>t6</cite> <strong>(5)</strong>.</p>
<p><cite>ClientIdentity</cite> takes the information returned by <cite>getCreator()</cite> and puts a set
of X.509 utility APIs on top of it to make it easi