Submitted by gldickinson on 2020-10-23 Revision - Author Time Stamp Needs to include description that Author Time Stamp must be associated with each USCDI dataset or data element that has a unique provenance set. Occurs when data is originated (captured, collected or sourced), updated, verified, attested, transformed (e.g., to/from exchange artifact such as HL7 v2 message, document or FHIR resource instance). Provenance set includes who, what, when, where and why as metadata for USCDI data classes and data elements. Author Time Stamp is part of “when”. It offers essential assurance for transparency, accountability, trust, traceability and data integrity. Note that Author Time Stamp is intrinsic to what the source EHR/HIT system already knows, thus it does not require extra data collection (burden) by the clinician or other end user.