| Field | Type | Flags | Description |
|---|---|---|---|
| datetime | Datetime | Readonly | History entry's datetime |
| issuer | Reference | Readonly | User which have done an action resulting in the history entry's creation |
| resource_type | String | Readonly | Type of the resource. Used with polymorphic resources. Refers to the "resource_types" list to provide an expected type |
| revision | String | Readonly | Revision related to the history entry |