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Copper

info

Please note that this content is under development and is not ready for implementation. This status message will be updated as content development progresses.

Copper Value Chain​

The copper value chain shown below indicates which role(s) are expected to issue which CRMTP credential types.

diagram goes here

Any actor that has an identifier of a copper product, minsite, or refinery can find the issued credentials and verify them. In general, downstream actors will be verifiers of upstream credentials.

Implementation Guidance​

Each implementer role should follow links to the relevant credential specifications and ensure that they are issuing credentials according to the relevant specification. In most cases the technical implementation will be done by underlying software systems. However it is still important that each actor confirm that the AATP credentials issued by their chosen systems are valid by dropping them into the conformity testing service.

RoleIssuer ofComments
Mine siteCopper passportcomments
CertifierCopperMark credential
RegulatorMine Permit
etc

Identity Anchors​

Identity anchors add increased trust to the CRMTP ecosystem because they link the DIDs (Self-issued IDs) of actors such as miners and refiners to authoritative registers such as Business registers. They are very simple credentials and are simple to issue. Their purpose and detailed implementation guidance are provided in the UNTP Digital Identity Anchor (DIA) specification. The DIA is mapped to CRMTP identifiers in the Identifiers section of this website. The table below lists the specific identity anchors relevant for actors in the industry. Each actor SHOULD request the corresponding identity credential from their registrar and should make it discoverable by

These tasks will normally be facilitated by the registrar such as the national business register.

RoleIdentity Anchor TypeComment

Buyers (Retailers & Brands)​

TBD