Understanding EPCIS and its Role in Supply Chain Management

EPCIS 2.0 is the GS1 standard for supply-chain event data, and epcis.dev is a capture gateway for it: post an event and the door validates it against GS1's own schema, stamps the capturing account — capturedBy, the warrantor, kept distinct from who, the attested observer — hashes it by CBV 2.0, and appends. That is the ground the topic above stands on.

Whatever the setting, the mechanics underneath this topic are the same four moves: an event is captured at a door, validated against GS1's official EPCIS 2.0 schema, identified by the CBV 2.0 §8.9 hash of its own content, and appended to a store nothing can rewrite. The variations between industries and use cases are vocabulary — the CBV's business steps and dispositions — not architecture.

The part epcis.dev makes concrete is validation. Every event is machine-checked against the official GS1 EPCIS 2.0 JSON schema before it is accepted, and a capture that does not validate is refused as application/problem+json carrying the standard's own exception types, not a vendor error string.

Two attributions travel with every event, and the door owns a different half of each. capturedBy is the warrantor — the account whose key opened the door — stamped by the gateway together with recordTime and the attestation grade, with caller-supplied values in those stamped fields stripped. who is the attested observer, asserted by the caller and graded by the door: it reaches only the grade claimed until identity attestation lands. One is stamped, the other is graded; they never merge.

Provenance: an aged epcis.dev page, kept at its original URL and refreshed into the current design on 8 September 2026.