Seafood Module Aggregation Event
Aggregation events capture the grouping of individual products into a single logistical unit, enabling them to be tracked collectively for downstream activities such as shipping, receiving, storage, or internal movements. The logistical unit is identified with a Serial Shipping Container Code (SSCC), which uniquely identifies transport and storage units such as totes, cartons, pallets, or shipping containers. Aggregation events are always reversible; the products combined into a logistical unit can later be separated or re-identified through a disaggregation event, restoring their individual identity.
Examples include:
- Totes of landed tuna aggregated on the vessel or dock for transfer to a cold storage facility (SSCC = tote or container).
- Cases of frozen loins or fillets packed by a processor into cartons or master cases for export (SSCC = carton or case).
- Multiple cases of finished product consolidated onto a single pallet for shipment to a distribution center (SSCC = pallet).
The seafood aggregation event extends the core aggregation event with additional KDEs specific to seafood products.
Event Profile
The seafood aggregation event is identified by the following event characteristics
KDE | Value |
type | AggregationEvent |
action | ADD |
bizStep | packing |
disposition | active |
productClassification of seafood.KDE Requirements
The following properties are required on the root of the seafood aggregation event.
| KDE | Description | Example Value |
|---|---|---|
| eventID | A URN formatted universally unique ID (UUID) | urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx |
| action | The action says how an event relates to the lifecycle of the entity being described. ADD means the entity in question has been created or added to. OBSERVE means the entity in question has not been changed. DELETE means the entity in question has been removed from or destroyed altogether |
ADD, DELETE, OBSERVE |
| disposition | The disposition field of an event specifies the business condition of the event's objects, subsequent to the event. The disposition is assumed to hold true until another event indicates a change of disposition. A full list of disposition values and their definitions is available in the EPCIS Core Business Vocabulary | active |
| eventTime | A string value formatted as an ISO datetime | 2026-01-01T00:00:00.000Z |
| eventTimeZoneOffset | The time zone offset in effect at the time and place the event occurred, expressed as an offset from UTC. The purpose of eventTimeZoneOffset is to provide additional business context about the event, namely to identify what time zone offset was in effect at the time and place the event was captured. | "+00:00" |
| bizLocation | A URN formatted GLN or GDST location identifier validated as a GLN with related master data | urn:epc:id:gln:1234567890123, urn:gdst:example.org:location:loc:examplePrefix.0 |
| informationProvider | A URN formatted PGLN or GDST party identifier | urn:epc:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| productOwner | A URN formatted PGLN or GDST party identifier | urn:epc:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| readPoint | A readPoint object with an id property equal to a geo formatted coordinate pair |
geo:37.860236,-123.144697 |
| parentID | A urn formatted SSCC or GDST LPN identifying the EPC of the parent product the child products are aggregated into | urn:epc:id:sscc:08600031303.solution1, urn:gdst:example.org:lpn:obj:example_prefix.01 |
Certificate Requirements
The following certificates are required in the certificationList of the property on a seafood aggregation event.
| Certification description | Certification type |
|---|---|
| Harvest certification | urn:gdst:certType:harvestCert |
| Human welfare policy standards | urn:gdst:certType:humanPolicy |
Certificates are required to have the following properties
| Certificate Property | Description | Example Value |
|---|---|---|
| certificationType | A URN formatted string defining the type of certificte | 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": "AggregationEvent",
"eventTime": "2026-04-19T08:58:39.4957023+00:00",
"eventTimeZoneOffset": "+00:00",
"eventID": "urn:uuid:4721e892-bdc3-4f67-97cd-f0bd29d32a8c",
"parentID": "urn:epc:id:sscc:08600031303.solution1",
"childEPCs": [],
"action": "ADD",
"bizStep": "packing",
"disposition": "active",
"readPoint": {
"id": "geo:37.7749,-122.4194"
},
"bizLocation": {
"id": "urn:gdst:example.org:location:loc:solution.processorplant"
},
"childQuantityList": [
{
"epcClass": "urn:gdst:example.org:product:lot:class:solution.processedfish.final1",
"quantity": 15876,
"uom": "KGM"
}
],
"gdst:productOwner": "urn:gdst:example.org:party:solution.processor",
"cbvmda:certificationList": {
"certification": [
{
"gdst:certificationType": "urn:gdst:certType:harvestCoC",
"certificationAgency": "CoC Agency",
"certificationStandard": "Generic Chain of Custody Standard",
"certificationValue": "abc123",
"certificationIdentification": "COC-0001"
}
]
},
"cbvmda:informationProvider": "urn:gdst:example.org:party:solution.processor"
}