Blog: Brave’s R&D team unveils THEMIS, a novel privacy-by-design ad platform that requires zero trust from both users and advertisers. This decentralized protocol further improves upon the current BAT-based ad ecosystem.
This post describes the work done by Gonçalo Pestana, Research Engineer, Iñigo Querejeta-Azurmendi, Cryptography Engineer, Dr. Panos Papadopoulos, Research Scientist, and Dr. Ben Livshits, Chief Scientist; this post is also part of a series that focuses on further progressive decentralization for Brave ads.
Note: THEMIS is primarily a research effort for now and does not constitute a commitment regarding product plans around Brave Rewards.
The whitepaper introducing the Basic Attention Token (BAT)  was released mid 2017 and, since then, BAT has been used by millions of users, advertisers, and publishers, each using and earning BAT through the Brave Browser (Figure 1) . It has been a long ride since 2017 and we’re very proud that BAT is acknowledged as one of the most successful use cases for decentralized ledgers and utility tokens.
In line with these goals, Brave’s research team has been working on a decentralized and privacy-by-design protocol that further improves upon the current BAT-based ad ecosystem. In this first post in a series of blog posts, we present THEMIS: a novel privacy-by-design ad platform that requires zero trust from both users and advertisers alike. THEMIS provides auditability to all participants, rewards users for interacting with ads, and allows advertisers to verify the performance and billing reports of their ad campaigns. In this blog series, we describe the THEMIS protocol and its building blocks. In the next post, we will present a preliminary scalability evaluation of THEMIS in a deployment environment.
Read the full post here: https://brave.com/themis/
Blog: California Privacy Rights Act to define and limit “cross-context behavioral advertising” by Brave’s Dr. Johnny Ryan
A court decision on Friday (19 June 2020) makes it highly likely that Californians will vote on the California Privacy Rights Act (CPRA), the successor to the CCPA. Disclosure: I have contributed to the text of this bill.
On Friday, a decision at the Sacramento County Superior Court cleared a bureaucratic hurdle that would have delayed a referendum on the California Privacy Rights Act for two years. The Act will now be voted on in November 2020, as planned.
Polling conducted by Mr Mac Taggart in late 2019 shows that 88% of Californians say they will vote in favor of the ballot initiative. Only 4% say they would vote to oppose it.
Read the full post here: https://brave.com/cpra-cross-context-behavioral-advertising/