uid

property Restricted

Carrier UID

The chip's unique identifier in upper-case hex (7 bytes for NTAG 424 DNA, e.g. 04DE5F1EACC040), bound to the event's identifier at encoding. A verifier compares it with the UID the PICC data reveals.

URI:https://ref.openepcis.org/extensions/common/carrier/uid

Range

xsd:string

Vocabulary alignment

Referenced upstream terms

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Where used

In example documents (1)

EPCIS 2.0 events

References

Access Level

The chip UID identifies the physical carrier; it lets a party track an item across readers and is of use only to the owner, the labeller and the verifier.

JSON-LD Example

{
  "type": "Thing",
  "uid": "..."
}