Reserved Attributes
Reserved attributes are asset attributes that are used by the DataTrails platform and have a specific purpose. All reserved attributes have the arc_ prefix.
Select an attribute to see an example of it in use.
Asset Attributes
| Attribute | Meaning |
|---|---|
| arc_description | brief description of Asset or Event being recorded |
| arc_display_name | friendly name identifier for Assets, Events, and policies |
| arc_display_type | classification of the type of Asset being traced that can be used for grouping or access control |
| arc_home_location_identity | physical location to which an Asset nominally ‘belongs’. NOT related to the Asset’s position in space. For that, use arc_gis_* (below) |
| arc_primary_image | an image attachment that will display as the thumbnail of an Asset |
Asset-Event Attributes
| Attribute | Meaning |
|---|---|
| arc_attribute_type | When set within a nested attribute, the value of "arc_attachment" identifies a reference to a
DataTrails BlobSee arc_blob* attributes for more info |
| arc_blob_hash_value | When arc_attribute_type = "arc_attachment", the value must equal the hash value within the associated arc_blob_identity |
| arc_blob_identity | A reference to a Blob |
| arc_blob_hash_alg | The algorithm of the arc_blob_hash_value (eg: “SHA256”) |
| arc_description | brief description of the Event being recorded |
| arc_display_type | classification of the type of Event being performed that can be used for grouping or access control |
| arc_file_name | When arc_attribute_type = "arc_attachment", the file name of the blob. |
| arc_gis_lat | tags the Event as having happened at a particular latitude. Used in the DataTrails UI for mapping |
| arc_gis_lng | tags the Event as having happened at a particular longitude. Used in the DataTrails UI for mapping |
| arc_primary_image | an image that displays as the thumbnail of the Event |
| timestamp_declared | a user provided value for when the Asset Event was declared. The value is recorded and integrity protected but not validated as the time is declared outside the scope of DataTrails. The timestamp_declared can be useful when corelating with timestamp_accepted and timestamp_committed |
| document_hash_value | |
| document_hash_alg | |
| document_version | |
| document_status |