Seafood Module Disaggregation Event
Disaggregation events capture the breaking down of a logistical unit into its individual components, allowing each item to once again be tracked on its own. The seafood aggregation event extends the core disaggregation event with seafood specific KDEs.
Event Profile
Seafood disaggregation events are identified by the following event characteristics.
KDE | Value |
type | AggregationEvent |
action | DELETE |
disposition | inactive |
Seafood disaggregation events must have at least one child product with a productClassification of
seafood. Disaggregation events MAY have empty childEPC and childQuantityList elements to indicate that all products from the parent product were disaggregated. KDE Requirements
The following KDEs are required on the root of a seafood disaggregation 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 |
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": "2026-04-19T16:08:41.6112327+00:00",
"eventTimeZoneOffset": "+00:00",
"eventID": "urn:uuid:19c1cfb7-5d89-4214-bc96-39b9ba220295",
"parentID": "urn:epc:id:sscc:08600031303.solution1",
"childEPCs": [],
"action": "DELETE",
"bizStep": "unpacking",
"disposition": "inactive",
"readPoint": {
"id": "geo:37.7749,-122.4194"
},
"bizLocation": {
"id": "urn:gdst:example.org:location:loc:solution.importerwarehouse"
},
"gdst:productOwner": "urn:gdst:example.org:party:solution.importer",
"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.importer"
}