ID()](<a class="reference external" href="https://hyperledger.github.io/fabric-chaincode-node/master/api/fabric-shim.ClientIdentity.html#getID__anchor">https://hyperledger.github.io/fabric-chaincode-node/master/api/fabric-shim.ClientIdentity.html#getID__anchor</a>)
returns the unique identity of the transaction submitter, according to their
distinguished name and the issuing CA’s distinguished name. The format is
<cite>x509::{subject DN}::{issuer DN}</cite>. See interaction point <strong>(6)</strong>.</p>