! width=30% | Name !! width=20% | Data type !! Comment
|-
| '''CTS''' (CTS) || {{{PropertyType|DateTimeDate/Time|DateTime}}} || [[Creation time stamp]]
|-
| '''UTS''' (UTS) || {{PropertyType|Date/Time| DateTime }} || [[Update time stamp]]
|-
| '''Version''' (VERSION) || itn {{PropertyType|Integer|Int}} || [[Update time stamp]]
|}
[[Category:System MetaClasses]]
[[Category:Relation Data]]