How to build a forensically verifiable chain of custody from mine shaft to EU port of entry. The SHA-256 provenance architecture that transforms South African mineral exports into premium, traceable supply chain assets.
A mineral provenance chain of custody is a documented, verifiable record of every transfer of ownership or physical custody of a mineral consignment from the point of extraction to the point of export. For South African manganese, this means documenting the mine shaft of origin (GPS-tagged), the ore processing facility, the beneficiation plant, the logistics provider, the port terminal, and the vessel manifest. Each transfer point is a potential point of fraud or contamination — the SHA-256 hashing architecture ensures that any alteration to the chain of custody record is immediately detectable.
The OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (CAHRA) is the international standard for mineral supply chain due diligence. The EU CSDDD requires that EU companies conducting due diligence on their mineral supply chains use the OECD Guidance as their reference framework. The National DPP Registry's mineral DPP template is structured around the OECD Guidance's five-step due diligence framework, ensuring that every South African mineral export is documented in a format that EU buyers can use directly for their own CSDDD compliance reporting.
The National DPP Registry creates a Mineral Passport for each consignment that links the ore to a specific GPS-tagged mine shaft. The shaft coordinates are verified against the Department of Mineral Resources and Energy (DMRE) mine permit database, ensuring that the mine is legally permitted and that the ore is not from an illegal artisanal mining operation. The GPS coordinates are embedded in the DPP JSON-LD payload's 'locationCreated' property, creating a machine-readable origin claim that EU customs agents and AI procurement bots can verify in under 50 milliseconds.
Upload your origin proof document to the Minting Station. The SHA-256 hash is computed client-side in your browser — the raw file never leaves your device unprotected. The hash is your forensic fingerprint: tamper-evident and legally non-repudiable under ECTA 2002.
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