Looks like RFCC event just wrapped up. You can find all the submissions at https://github.com/brave-intl/themis-rfcc/tree/main/submissions
All the big names (e.g. Solana, Starkware, Avalanche) are there. Polygon (MATIC) is missing because they apparently missed the event announcement.
I'm not technical enough to fully understand but from a quick glance, they will offer fast and cheap ad view and reward calculations. This is a big deal. Besides getting rid of the posts on "missing" estimated BAT, it will position BAT as the trustless attention protocol that any advertisers can audit and verify themselves, better than what Google, Facebook, and Apple have to offer.
Very excited to see which one the Brave team will land on.
Source :
https://www.reddit.com/r/BATProject/comments/ngwuf9/themis_rfcc_wrapping_up/