* A digital signature on the target resource(s). The signature should match a Provenance.agent.reference in the provenance resource. The signature is only added to support checking cryptographic integrity of the resource, and not to represent workflow and clinical aspects of the signing process, or to support non-repudiation.
* </p>
*/
public StringDt getIntegritySignature() {
if (myIntegritySignature == null) {
myIntegritySignature = new StringDt();
}
return myIntegritySignature;
}