Digital Product Passport Cradle-to-Gate Lineage Builder
Build a cradle-to-gate supplier lineage with hash-only claims per stage. Each stage carries a supplier_hash anchor and carbon_value. Aggregates total carbon deterministically.
EU ESPRGS1 EPCIS 2.0Zero PIIClient-side onlyHash-Only · No Trade Secrets
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Scope
Builds a cradle-to-gate supply chain lineage using hash-only supplier claims — no trade secrets exposed. Each stage requires a sha256:-prefixed supplier_hash and a carbon_value. Total carbon aggregated to 1e6 precision. Feeds the product authenticity verifier (art-117).