URL Resolution in printed matter

Grretings,
Some few days ago I posted a question for an opinion, perhaps it was too
long? The question is: in the RFC framework would a specification for
barcode / machine symbols to URLS be too far afield of ietf mandates? There
are some DNS like issues, but not too many.

I'm a little surprised a field getting a fair amount of attention seens not
to have mush pseudo-formal input.

Regards,
Dan Kolis