my question is is there any way to prevent becoming the authority for a zone you have no knowledge of?
delegation and authority are two different features, and totally independent.
You can't "become the authority" if you don't have/serve the zone data.
Nobody can force you to be authoritative, and nobody can stop you from being (spoofing) authoritative.
For delegation, there's no way to stop a registrant from listing non-cooperating NSs as delegated NSs.
Len
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