| Attributes |
| Signature | Optionality | Multiplicity | Constant | Documentation |
 location : PARTY_IDENTIFIED | 0..1 | -- | | Identifier of the particular site/facility within an organisation which handled the item. For
computability, this identifier needs to be e.g. a PKI identifier which can be included in the identifier list of the PARTY_IDENTIFIED object. |
| provider : PARTY_IDENTIFIED | 0..1 | -- | | Optional provider(s) who created, committed, forwarded or otherwise handled the item. |
| subject : PARTY_PROXY | 0..1 | -- | | Identifiers for subject of the received information item. |
| system_id : String | 1 | -- | | Identifier of the system which handled the information item. |
| time : DV_DATE_TIME | 0..1 | -- | | Time of handling the item. For an originating system, this will be time of creation, for an intermediate feeder system, this will be a time of accession or other time of handling, where
available. |
| version_id : String | 0..1 | -- | | Any identifier used in the system such as “interim”, “final”, or numeric versions if available. |