Aquaculture Module Feed Processing Event
Feed processing events record any type of transformation event associated with the production of feed.
Event Profile
Feed processing events are identified by the following event characteristics:
KDE | Value |
type | TransformationEvent |
bizStep | commissioning |
disposition | active |
productClassification of feed.KDE Requirements
The following KDEs are required on the root of a feed processing event, in addition to the Core and Seafood requirements.
| KDE | Description | Example Value |
|---|---|---|
| bizLocation | Facility where feed was processed; validated as a GLN with related master data | urn:epc:id:gln:1234567890123 |
| readPoint | A readPoint object with an id property equal to a geo formatted coordinate pair |
geo:37.860236,-123.144697 |
| informationProvider | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| productOwner | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| humanWelfarePolicy | Indicates whether a human welfare policy was in place during the event | internal policy, 3P audit, none |
Instance Lot Master Data (ILMD) Requirements
The following KDEs should be available on the ilmd property of the feed processing event.
| KDE | Description | Example Value |
|---|---|---|
| proteinSource | Source(s) of protein in the feed formulation (for example soy, insects, wild-caught fish byproduct, other) | soy, wild caught fish byproduct |
Certificate Requirements
A feed processing event must carry at least one complete certificate in its certificationList, either on the event or in the ilmd. GDST 2.0 does not name certification types in its normative event profiles; the controlled list of supported values is maintained in the Certification Types article.
Certificates are required to have the following properties
| Certificate Property | Description | Example Value |
|---|---|---|
| certificationType | A URN formatted string defining the type of certificate | urn:gdst:certType:harvestCert |
| certificationAgency | The name of the certificate program owner | WHO |
| certificationStandard | The name of the standard associated with the certificate | WHO Human Decency Policy |
| certificationValue | An additional descriptor of the certificate if there are different quality values for the certificate | Quality class 4 |
| certificationIdentification | The ID of the certificate | 0987654321 |
Full JSON Example
{
"@context": [
"https://ref.gs1.org/standards/epcis/epcis-context.jsonld",
{
"gdst": "https://traceability-dialogue.org/epcis"
}
],
"type": "TransformationEvent",
"eventTime": "2026-04-18T02:58:47.3535287+00:00",
"eventTimeZoneOffset": "+00:00",
"eventID": "urn:uuid:4e42594a-d8b0-4300-8c62-7bc6edf3c002",
"inputQuantityList": [
{
"epcClass": "urn:gdst:example.org:product:lot:class:solution.feed.source1",
"quantity": 5000.0,
"uom": "KGM"
}
],
"outputQuantityList": [
{
"epcClass": "urn:gdst:example.org:product:lot:class:solution.feed.lot1",
"quantity": 5000.0,
"uom": "KGM"
}
],
"bizStep": "commissioning",
"disposition": "active",
"readPoint": {
"id": "geo:37.7749,-122.4194"
},
"bizLocation": {
"id": "urn:gdst:example.org:location:loc:solution.feedmill"
},
"ilmd": {
"gdst:proteinSource": "soy",
"cbvmda:certificationList": {
"certification": [
{
"gdst:certificationType": "urn:gdst:certType:harvestCoC",
"certificationAgency": "CoC Agency",
"certificationStandard": "Generic Chain of Custody Standard",
"certificationValue": "abc123",
"certificationIdentification": "COC-0001"
},
{
"gdst:certificationType": "urn:gdst:certType:processorLicense",
"certificationAgency": "Processor Agency",
"certificationStandard": "Processor License Standard",
"certificationValue": "def456",
"certificationIdentification": "PROC-0002"
}
]
}
},
"gdst:productOwner": "urn:gdst:example.org:party:solution.feedmill",
"cbvmda:informationProvider": "urn:gdst:example.org:party:solution.feedmill"
}