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 disaggregation 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 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, in addition to the Core requirements.
| KDE | Description | Example Value |
|---|---|---|
| readPoint | A readPoint object with an id property equal to a geo formatted coordinate pair |
geo:37.860236,-123.144697 |
| productOwner | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| informationProvider | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
Certificate Requirements
A seafood disaggregation event must carry at least one complete certificate in its certificationList. 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": "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"
}