The Brave Payments user interface allows the user to select the sites they wish to support by disabling or enabling funding for all sites they visit.
Contributions from users are sent to a bitcoin escrow wallet managed by Brave. When bitcoin contributions to a website equal $100 USD, the system emails the site’s webmaster and the registered domain owner, launching the publisher’s verification process. The email explains how the publisher verifies their bitcoin wallet. For publishers that don’t have a bitcoin wallet, the email explains how to create one.
The browser provides users with a free BitGo bitcoin wallet. Users can also fund a wallet through Coinbase..
https://www.cryptocoinsnews.com/brave-browser-launches-bitcoin-micropayments-for-rewarding-user-preferred-websites/