Editing My ETSI TS 103 120 Notes (section)

=== 6.2.2. Structure ===

Table 6.1 shows the structure of every valid MessageHeader within an HI-1 message.

{| class="wikitable"
|+ MessageHeader
|-
! Field !! Format !! Description
|-
| SenderIdentifier || EndpointID (see clause 6.2.4 for details) || Nationally unique identifier and country code, sufficient to uniquely identify the Sender node in the message exchange. See clause 6.2.4 for details.
|-
| ReceiverIdentifier || EndpointID (see clause 6.2.4 for details) || Nationally unique identifier and country code, sufficient to uniquely identify the intended Receiver in the message exchange. See clause 6.2.4 for details.
|-
| TransactionIdentifier || UUID (see ETSI TS 103 280 [7]) in IETF RFC 4122 [3] canonical form || Identifier that uniquely identifies the message exchange between a given Sender and Receiver. See clause 6.2.5 for details.
|-
| Timestamp || QualifiedMicrosecondDateTime (see ETSI TS 103 280) || Timestamp indicating the time the message was sent.
|-
| Version || Version (see clause 6.2.3 for details) || Version of the present document and relevant national profile used for interpreting the message.
|}