docs: function hasUnusableRecordIdentifier(recState) {
    const md5s = recState.md5s;
    return isNotBlank(recState.eventID) || // isNotBlank(recState.eventSeqNo) || isNotBlank(recState.eventSubSeqNo) ||
      (md5s && (isNotBlank(md5s.userRec) || isNotBlank(md5s.rec) || isNotBlank(md5s.data)));
  }