[CalendarServer-users] DTSTAMP generate by server or client

Hi, In rfc 6638, this is mentioned 3.2.5 <https://tools.ietf.org/html/rfc6638#section-3.2.5>. DTSTAMP and SEQUENCE Properties * The server MUST ensure that a "DTSTAMP" iCalendar property is present* and set the value to the UTC time that the scheduling message was generated (as required by iCalendar). The server MUST ensure that for each type of scheduling operation, the "SEQUENCE" iCalendar property value is updated as per iTIP [RFC5546 <https://tools.ietf.org/html/rfc5546>]. Does that mean DTSTAMP is generated by server? Or does client need to put that it in. Also, what is the difference b/w DTSTAMP and CREATED properties Best Regards,