Match a DCC to the Right Gauge: Read the Item Identifiers
Four identical plug gauges, four DCCs back from the lab. Match on issuer-qualified item identifiers, not the gauge name, before you link the evidence.
Tag: PTB DCC v3.3.0
XSD-Valid Isn’t Accepted: 3 DCC Validation Gates
Your DCC passed XSD validation. It can still be unsigned, altered or for the wrong instrument. Three ingest gates that make a DCC safe to trust.
Inside a DCC: Anatomy of the PTB v3.3.0 Schema
A block-by-block tour of the PTB DCC XML schema v3.3.0: administrative data, measurement results, D-SI units, and the signature that makes it trustworthy.