Digital Copper Passport

This section specifies the definition of a Digital Copper Passport. It is a mapping to the UNTP Digital Product Passport and uses elements from the London Metal Exchange, ASTM B115, and other relevant attributes to define a copper product.

As much as possible has been mapped using existing classes. If this was not feasible, it was evaluated whether a generic Critical Raw Material class could be utilized. A specific product class was only created as a last resort when neither of these options was possible.

Copper Domain Mapping: Translating Industrial Attributes into Logical Model Structures

Copper Product Passport

Property	Industrial Attribute	Description	Example Value	Cardinality
crm:DigitalPassport
id	Passport ID	TBD	not applicable	[1]
validFrom	Passport valid from	TBD	26.3.2024 11:35	[1]
validUntil	Passport valid until	TBD	18.3.2027 11:34	[1]
crm:Material
name	Material Name	TBD	Cu (Copper)	[1]
originCountry	Country of Mining	The ISO 3166-1 alpha-2 code of the facility location	CL	[1]
materialType	Material Designation	The technical grade or standard designation of the copper.	[1]
massFraction	Chemical Purity	The minimum numeric mass fraction of pure material content	98.00	[1]
recycledMassFraction	Recycled Content	Percentage of the product derived from recycled scrap	45.0	[0]
hazardous	Hazardous	The product or material contains hazardous substances.	No	[1]
symbol	Image/Icon	A base64-encoded binary string can embed an image or an icon		[0]
materialSafetyInformation	Safety Info	A link to safety info	https://safety.copper.com	[0]
materialNumber	Material Number	The european or US/Int standard number (CW024A/C11000).	CW024A	[1]
rDesignation	Temper R-designation	Hardness of the material - based on tensile strength	R220 (soft)	[0]
hDesignation	Temper H-designation	Hardness of the material - based on Vickers hardness	H065	[0]
tDesignation	Temper T-designation	Hardness of the material - based on thermally treatment	T4	[0]
crm:Product
id	Unique Product ID	A unique, persistent identifier for the product type	did:web:atlantic-copper.es:48303094	[1]
name	Product Name	A human-readable name of the copper product	HIGH-PURITY COPPER STRIP	[1]
registeredID	TBD	TBD		?
batchNumber	Batch	Unique identifier for a specific production melt or lot; Vital for traceability	B-2026-CH-09	[1]
productImage	Product Image	Example or specific image of product	https://image.com/copper	[0]
description	Description	Free text to describe the product		[0]
furtherInformation	Link to Info	TBD		[0]
productionDate	Date of Production	When was the product produced	2025-11-01	[0]
countryOfProduction	Country of Production	The ISO 3166-1 alpha-2 code of the facility location	FN	[1]
serialNumber	Serial Number	TBD	203849917	[0]
crm:Characteristics
edgeProfile	Edge Profile	TBD	RE	TBD
brand	Brand Name	The registered trade name (mandatory for LME listed brands). TBD whether it is linked to the LME list		TBD
physicalForm	Physical Form	The physical shape or appearance of the copper product.	Sheets	[0]
crm:Corrosion
corrosionRate	Corrosion Rate	Corrosion rate is the speed at which a metal or alloy deteriorates due to environmental reactions. It is typically measured as the loss of material thickness over time, expressed in mm/year or μm/year. Crucially, the corrosion rate is not a fixed constant for a material. It is a variable that depends heavily on the environment. Therefore, a reported rate is only valid when linked to a specific Corrosivity Category (e.g., ISO 9223 categories C1 to CX). For instance, the corrosion rate of the same copper component will be significantly higher in a salty coastal environment (C5) than in a dry, indoor warehouse (C1).	1ym/a	TBD
corrosionCategory	Corrosivity Category	The Corrosivity Category is a standardized classification (ISO 9223) ranging from C1 to CX that defines the environmental aggressiveness of a location to determine the specific corrosion rate of a material.	C3	TBD
crm:Measure
upperTolerance	Upper Tolerance	The allowed deviation for dimensions with upper value	0.05mm	TBD
lowerTolerance	Lower Tolerance	The allowed deviation for dimensions with upper value	0.05mm	TBD
crm:Dimension
weight	Weight	Value with unit	10kg	[1]
length	Length	Value with unit	100cm	TBD
width	Width	Value with unit	5cm	TBD
height	Height	Value with unit	0.2cm	TBD
volume	Volume	Value with unit		[0]
diameter	Diameter	Value with unit		[0]
crm:EnvironmentalContext		TBD
so2DepositionRate	SO2 Deposition Rate	The amount of sulfur dioxide absorbed by the surface from the air. mg/(m²·d)	15.0	TBD
chlorideDepositionRate	Chloride Deposition Rate	The amount of airborne salt (chlorides) deposited on the surface in mg/(m²·d)	0.5	TBD
timeOfWetness	Time of Wetness (TOW)	The time per year surface moisture is present to allow corrosion. Hours/Year	30	TBD
averageTemperature	Average Temperature	The mean ambient temperature during the exposure period in Celsius or Fahrenheit	12.0	TBD
relativeHumidity	Relative Humidity	The average percentage of moisture in the air in %	75.0	TBD
untp:EmissionsPerformance
carbonFootprint	Carbon Footprint	Total GHG emissions expressed as decimal in KGM	2.5	[1]
declaredUnit	Unit	In this example Kilo	KGM	[1]
operationalScope	Scope	Three possible list entries: "None", "CradleToGate" or "CradleToGrave"	CradleToGate	[1]
primarySourceRatio	Primary Source Ratio	this ratio is a critical metric for calculating the Carbon Footprint and determining the prontal grade. (Mass of Virgin Copper / Total Mass of Product)	0.3	[1]
untp:Facility
id	Facility ID	The unique identifier of the refinery or production site. GS1, DID or National/Official Register	did:web:huelva.atlantic-copper.es	[1]
name	Name of Facility		Atlantic Copper Huelva	[1]
registeredID	Registered ID	TBD		TBD
description	Description	TBD whether needed		TBD
countryOfOperation	Country	The ISO 3166-1 alpha-2 code of the facility location	ES	[1]
untp:Party
id	mainly Manufacturer	e.g. ID of manufacturer - see facility (GS1 GLN, ISO6523, LEI)	549300157XX3WB44J37	[1]
name	Name of Manufacturer	Name in free text	Atlantic Copper SL	[1]
registeredID	Reg ID	The registration number (alphanumeric) of the manufacturer within the identifier scheme. Unique within the register. E.g. GS1 GLN or a national land registry scheme		TBD
description	Description	TBD whether needed		TBD
registrationCountry	Country of Manufacturer	The ISO 3166-1 alpha-2 code of the facility location	ES	[1]
organisationWebsite	Website	Website of Manufacturer	https://www.atlanticcopper.com	[0]

Example: Rendered Digital Copper Passport

Below is a rendered sample of a Digital Copper Passport. The rendered sample is viewing a human-friendly and readable version of its content.

Example: JSON of Digital Copper Passport

note

The credential examples on this page are currently being worked on. These examples are not representative of what the final credential payloads will be.

The JSON provides the raw data that is a Digital Copper Passport.

{
  "@context": {
    "crm": "https://example.org/crm/",
    "untp": "https://example.org/untp/",
    "xsd": "http://www.w3.org/2001/XMLSchema#"
  },
  "@type": "crm:DigitalPassport",
  "id": "not applicable",
  "validFrom": {
    "@value": "2024-03-26T11:35:00",
    "@type": "xsd:dateTime"
  },
  "validUntil": {
    "@value": "2027-03-18T11:34:00",
    "@type": "xsd:dateTime"
  },
  "credentialSubject": {
    "@type": "crm:Product",
    "id": "did:web:atlantic-copper.es:48303094",
    "name": "HIGH-PURITY COPPER STRIP",
    "batchNumber": "B-2026-CH-09",
    "productImage": "https://image.com/copper",
    "productionDate": {
      "@value": "2025-11-01",
      "@type": "xsd:date"
    },
    "countryOfProduction": "FN",
    "serialNumber": "203849917",
    "material": {
      "@type": "crm:Material",
      "name": "Cu (Copper)",
      "originCountry": "CL",
      "materialType": "Cu-ETP",
      "massFraction": 98.0,
      "recycledMassFraction": 45.0,
      "hazardous": false,
      "materialSafetyInformation": "https://safety.copper.com",
      "materialNumber": "CW024A"
    },
    "characteristics": {
      "@type": "crm:Characteristics",
      "edgeProfile": "RE",
      "brand": "",
      "physicalForm": "Sheets",
      "corrosionRate": {
        "@type": "crm:Corrosion",
        "corrosionRate": {
          "@type": "crm:Measure",
          "value": 1.5,
          "unit": "ym/a"
        },
        "corrosionCategory": "C3",
        "environmentalContext": {
          "@type": "crm:EnvironmentalContext",
          "so2DepositionRate": "15.0",
          "chlorideDepositionRate": "0.5",
          "timeOfWetness": "30",
          "averageTemperature": "12",
          "relativeHumidity": "75.0"
        },
        "testStandard": ""
      }
    },
    "dimensions": {
      "@type": "crm:Dimension",
      "weight": {
        "@type": "crm:Measure",
        "value": 10,
        "unit": "kg"
      },
      "length": {
        "@type": "crm:Measure",
        "value": 100,
        "unit": "cm"
      },
      "width": {
        "@type": "crm:Measure",
        "value": 5,
        "unit": "cm"
      },
      "height": {
        "@type": "crm:Measure",
        "value": 0.2,
        "unit": "cm"
      }
    },
    "emissionsPerformance": {
      "@type": "untp:EmissionsPerformance",
      "carbonFootprint": 2.5,
      "declaredUnit": "KGM",
      "operationalScope": "CradleToGate",
      "primarySourceRatio": 0.3
    },
    "producedByParty": {
      "@type": "untp:Party",
      "id": "LEI 549300157XX3WB44J37",
      "name": "Atlantic Copper SL",
      "registeredID": "",
      "registrationCountry": "ES",
      "organisationWebsite": "https://www.atlanticcopper.com"
    },
    "producedAtFacility": {
      "@type": "untp:Facility",
      "id": "did:web:huelva.atlantic-copper.es",
      "name": "Atlantic Copper Huelva",
      "registeredID": "",
      "countryOfOperation": "ES"
    }
  }
}

Ontology

TBD

Logical Model

The key information components of the copper passport are shown in the logical model diagram. The data model is identical to the UNTP Digital Product Passport - version v0.6.1 with the following changes:

• Added properties in Material according to CEN and UNS.
• Added a new class Corrosion according to ISO guidelines.
• Added a new class EnvironmentalContext according to ISO guidelines.
• Added properties in Dimension according to CEN.
• Added properties in Measure according to CEN.
• Added properties in Characteristics according to CEN, ISO and LME.

Browse the classes and properties used in the copper product passport.

Implementation Guidance

TBD

Profile Rules

TBD