{
  "type": [
    "DigitalTraceabilityEvent",
    "VerifiableCredential"
  ],
  "@context": [
    "https://www.w3.org/ns/credentials/v2",
    "https://vocabulary.uncefact.org/untp/0.7.0/context/"
  ],
  "id": "https://credentials.sample-refinery.example.com/dte/make-cathode-2025-0305",
  "issuer": {
    "type": [
      "CredentialIssuer"
    ],
    "id": "did:web:sample-refinery.example.com",
    "name": "Sample Copper Refinery Co. Ltd",
    "issuerAlsoKnownAs": [
      {
        "type": [
          "Party"
        ],
        "id": "https://www.sample-register.example.com/henkorireki-johoto.html?selHouzinNo=REF-001",
        "name": "Sample Copper Refinery Co. Ltd",
        "registeredId": "REF-001",
        "idScheme": {
          "type": [
            "IdentifierScheme"
          ],
          "id": "https://www.sample-register.example.com",
          "name": "Japan Corporate Number (Houjin Bangou)"
        }
      }
    ]
  },
  "validFrom": "2025-03-05T00:00:00Z",
  "validUntil": "2026-03-05T00:00:00Z",
  "name": "Smelting of Copper Concentrate into Copper Cathode — Sample",
  "credentialSubject": [
    {
      "type": [
        "MakeEvent",
        "LifecycleEvent"
      ],
      "id": "https://sample-refinery.example.com/events/make-cathode-2025-0305",
      "name": "Copper smelting and electrolytic refining batch",
      "description": "Processing of 30 tonnes of copper concentrate (Cu 30%) through smelting and electrolytic refining to produce 10 tonnes of LME Grade A copper cathode (Cu 99.99%) at Sample Copper Refinery.",
      "eventDate": "2025-03-05T06:00:00Z",
      "activityType": {
        "code": "commissioning",
        "name": "Commissioning",
        "definition": "The process of manufacturing or assembling a product from raw materials or components.",
        "schemeId": "https://ref.gs1.org/cbv/BizStep",
        "schemeName": "GS1 CBV Business Step"
      },
      "relatedParty": [
        {
          "role": "manufacturer",
          "party": {
            "type": [
              "Party"
            ],
            "id": "did:web:sample-refinery.example.com",
            "name": "Sample Copper Refinery Co. Ltd",
            "registeredId": "REF-001",
            "idScheme": {
              "type": [
                "IdentifierScheme"
              ],
              "id": "https://www.sample-register.example.com",
              "name": "Japan Corporate Number (Houjin Bangou)"
            }
          }
        }
      ],
      "inputProduct": [
        {
          "product": {
            "type": [
              "Product"
            ],
            "id": "https://id.sample-mine.example.com/product/cu-conc-2025",
            "name": "Copper Concentrate (Cu 30%)",
            "modelNumber": "SM-CU-CONC-30",
            "batchNumber": "2025-Q1-4501",
            "idGranularity": "model"
          },
          "quantity": {
            "value": 30000,
            "unit": "KGM"
          },
          "disposition": "consumed"
        }
      ],
      "outputProduct": [
        {
          "product": {
            "type": [
              "Product"
            ],
            "id": "https://id.sample-refinery.example.com/product/cu-cathode-2025",
            "name": "LME Grade A Copper Cathode",
            "modelNumber": "SR-CU-CATH-9999",
            "batchNumber": "2025-Q1-0812",
            "idGranularity": "model"
          },
          "quantity": {
            "value": 10000,
            "unit": "KGM"
          },
          "disposition": "new"
        }
      ],
      "madeAtFacility": {
        "type": [
          "Facility"
        ],
        "id": "https://facility-register.example.com/fac-002",
        "name": "Sample Copper Refinery",
        "registeredId": "fac-002"
      },
      "relatedDocument": [
        {
          "linkURL": "https://credentials.sample-refinery.example.com/dpp/cu-cathode-2025",
          "linkName": "Digital Product Passport — LME Grade A Copper Cathode",
          "mediaType": "application/ld+json",
          "linkType": "https://test.uncefact.org/vocabulary/linkTypes/dpp"
        },
        {
          "linkURL": "https://credentials.sample-cab.example.com/dcc/smelter-002",
          "linkName": "Coppermark Certification — Sample Copper Refinery",
          "mediaType": "application/ld+json",
          "linkType": "https://test.uncefact.org/vocabulary/linkTypes/dcc"
        }
      ]
    }
  ]
}