Basic Attention Token (BAT) is an Ethereum-based token integrated into the privacy-focused web browser, Brave. The company, founded in 2015 by Brian Bondy and Mozilla co-founder and JavaScript creator, Brendan Eich, launched Basic Attention Token in 2017 to remedy several problems it saw with digital advertising: the privacy violations of users, the declining revenues of traditional publishers and the inability of advertisers to assess the effectiveness of their ads. BAT measures users’ attention while they browse sites and rewards publishers accordingly. The browser includes an opt-in feature, Brave Rewards, which allows users to anonymously donate BAT to sites that they visit, such as YouTube. Brave claims that more than 150 publishers take part in Brave Rewards, including Wikihow, Archive.org and Smashing Magazine. Brave has capped the BAT supply at 1.5 billion tokens. CryptoX also provides a suite of institutional-grade price indexes. Find out more about them here.