Basic Attention Token (BAT) aims to streamline and disrupt the online advertising industry by providing a blockchain-based solution to common web browsing issues. Basic Attention Token (BAT) is the native token of the Brave browser and is used by advertisers to buy services and ad space in the Brave web browser. Combined with Brave, it makes up a decentralized blockchain-based digital advertising platform. Through their central product, the Brave web browser, Basic Attention Token can provide a system that mutually benefits users, publishers, and advertisers. The Brave web browser gives users greater control over their data while also allowing them to earn crypto rewards in the form of BAT, the project's utility token. While the Brave browser went live in January 2016, BAT was launched as an ERC-20 token through an initial coin offering (ICO) in May 2017. The ICO generated more than $35 million within 30 seconds, and the initial BAT price was around $0.036 per token. The primary purpose of Basic Attention Token is to serve as a unit of exchange within the Brave ecosystem. The Brave web browser rewards users for watching ads and offers advertisers higher returns on their ad spends. Its primary aim is democratizing the attention economy by allowing users to choose privacy-preserving ads they would like to view and to reward them with BAT. On the other hand, advertisers can show better-targeted ads for optimum engagement and reduce the losses that often occur due to ad fraud. Brave browser and BAT work together efficiently to resolve inefficiencies and privacy violations witnessed in the digital advertising industry. They eliminate the intermediaries, deliver higher privacy to the users, and facilitate the optimum economic value distribution amongst all ecosystem participants. BAT is commonly exchanged between different entities in the Brave ecosystem, including content creators, publishers, end-users, and advertisers. Brave has 16 million daily active users, 55 million monthly active users, 1.6 million verified content creators (accepting BAT), thousands of campaigns run by leading brands, and 10.6 million BAT wallets. Some well-known participants in the Brave and BAT ecosystem are Verizon, OKX, Purple, BlockFi, The Guardian, Los Angeles Times, The Washington Post, Vimeo, Gala Games, and Tap Network. With Brave Wallet and Brave Swaps, the BAT team has brought decentralized finance (DeFi) to the BAT ecosystem. Its upcoming features include BAT utility for search engines, e-commerce, file sharing, and IPNS-verified content.