MITM on internet between user and ads server."Personally-identifiable or sensitive information" in this context includes but is not limited to: the user's browsing history, their email address and contact info, their real name, their Brave payments history, what ads they have seen, what segments they are in, their payments wallet address and anything considered personal info under GDPR. Brave/Advertiser cannot figure out any personally-identifiable or sensitive information about the user interacting with an ad creative without explicit consent of the user.Brave/Advertiser cannot learn that a user who has viewed or interacted with Creative Set X and a user who has viewed or interacted with Creative Set Y are the same user (AKA, user unlinkability across creative sets).
Brave/Advertiser cannot learn that a user in Segment X and a user in Segment Y are the same user (AKA, user unlinkability across segments).Prevent double spend attacks by ensuring each payment token can be spent at most once.Pay out for redeemed tokens on-demand after offering a notification to the user to claim their earnings.Allow a user to redeem their payment tokens, this redemption should be unlinkable to the original confirmation events.Upon receiving a valid confirmation, grant the user a redeemable payment token that is worth ~70% of the observation price charged to the advertiser.Given a Brave user observes an advertisement, provide a channel for "confirming" said viewing without revealing to Brave the particular user involved.User computers, Brave browser installation with stored secrets.
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