EPCIS 2.0
The GS1 standard for sharing supply-chain event data ("what, where, when, why") as structured events. TrackJet runs a minimal-subset EPCIS 2.0 repository (ObjectEvent capture + query, per API key); partner events whose EPC matches a tracked number appear on its page as "EPCIS (partner)".
Try it — live validator
Runs the same algorithm TrackJet’s detector uses, locally in your browser. Zero network calls.