Browser Demo

Check OCMF charging records in your browser. PyOCMF runs locally with Pyodide, so nothing leaves this page.

Starting Python…

Input

1Record

Paste record Open XML file Scan QR code

OCMF string, plain or hex-encoded

Or load an example Choose an example…

2Public key optional

Hex or base64

Not needed if the record carries its own key, as QR codes often do.

3Check

Strict mode Reject records that deviate from the OCMF Spec Preparing Python…

Result

Results appear here

Each record is checked three ways:

Signature

Is the record unchanged since the meter signed it?

Eichrecht

Can the charging session be billed under German calibration law?

OCMF Spec

Does the record follow the format specification?

Unofficial

This demo is not a legally binding verification. For that, use the Transparenzsoftware by S.A.F.E. e.V.