Definition of the OID - different interpretation?

[Pierre-de-la-Verre]

There are OIDs like this

ch1584qrIw0mf~Sl
ch1584qrIw0nFMl^

ilivalidator reports "value <ch1584qrIw0nFMl^> is not a valid OID", based on the (here often discussed) "Interlis Reference 3.3.1, { Letter | Digit | '_' | '-' | '.' }"

Other validators accept these OIDs, maybe based on "Interlis Reference, Anhang D, Postfix: Sequenz (numerisch oder alphanume- risch) des Produzentensystems als 'lokaler' Identifikations-Anteil". And "alphanumeric" can be understood not only as "a-z, 0-9" but also incl special chars, diacritics an so on: see https://de.wikipedia.org/wiki/Alphanumerische_Zeichen

I'm confused - is there a "common and absolute correct" definition? Or are there really different interpretations?

[claeis]

Interlis Reference 2.8.9 (references XML) and 3.3.11.16 (references XML-ID: 3.3.1).

In your example ~ and ^ are the invalid charcaters.

[Pierre-de-la-Verre]

Thanks.