Basic Attention Token

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Basic Attention Token
Basic Attention Token Icon.svg
Original author(s)Brendan Eich
Developer(s)Brave Software
Written inSolidity, JavaScript, C++
TypeOnline advertising

Basic Attention Token (BAT) is an open-source, decentralized ad exchange platform based on Ethereum, founded by Brendan Eich.[1] The platform is integrated with the Brave web browser.

Basic Attention Token held an initial coin offering on May 31, 2017 for its eponymous ERC-20 utility token, raising approximately $35M USD at the time in less than 30 seconds.[2][3][4] The BAT token is designed to correctly value and price user attention within the platform.

Advertising platform[edit]

The Basic Attention Token comprises various components, including attention measurement systems, analytics dashboards and machine learning algorithms.[5] Integration of BAT into a given host application involves implementing BAT Ads, a system that matches and displays ads to users based on locally stored data. Ad targeting is performed wholly on-device, removing the need for third-party tracking.[6]

Use of Ethereum-based token[edit]

Basic Attention Token's eponymous Ethereum-based utility token, designed to monetize human attention with a pay to surf business model, serves as the unit of account within the platform:

  1. Advertisers purchase advertising space and user attention on the platform with BAT tokens;
  2. Publishers receive user contributions and advertising revenue in the form of BAT tokens;
  3. Users will be paid in BAT for viewing BAT ads.

As a cryptocurrency, tokens may be used to redeem rewards and services with participating merchants in the BAT ecosystem, or withdrawn from the platform and exchanged for other currencies.

ERC-20 token[edit]

The total fixed supply of the token (1,500,000,000 BAT) was generated during the token's initial coin offering on May 31, 2017.[7] One third of the total was initially retained by the BAT team as part of developer and user growth pools, the latter of which is used to promote adoption of the platform.[8]

User growth pool disbursements[edit]

In early December 2017, the development team disbursed the first round of its user growth pool grants. A total of 300,000 BAT was distributed to new users of the Brave web browser's Brave Payments program on a first come first served basis.[9][10]

In mid January 2018, the team issued $1 million (USD) worth of BAT tokens to users in a promotional giveaway. All grants were claimed within ten days.[11][12]

In mid February 2018, the company launched a $1 million dollar (USD) referral program wherein publishers who succeeded in bringing on new users to the Brave browser who were active for at least thirty days would be rewarded with $5 USD worth of BAT tokens per user.[13]

On March 1, 2018, the company expanded Brave Payments support to streamers on the platform while simultaneously increasing referral program grants by $1 million (USD) worth of BAT.[14][15]

Integration with Brave[edit]

Elements of the Basic Attention Token platform have been integrated into the Brave web browser as part of its Brave Payments program. Brave Payments, which formerly used Bitcoin, allows users to tip websites and content creators (like YouTubers and Twitch streamers)[16] with BAT tokens, akin to patronage services like Patreon.[17]

Notable publishers who accept BAT tokens include the Washington Post, The Guardian, Vimeo, MarketWatch, Barron's, and Vice.[18]

In a future update, Brave says that it plans to implement BAT Ads, a program designed to pay users in the platform's cryptocurrency (BAT) for viewing advertisements as compensation for their attention.[19]

Although the Brave web browser is co-developed with Basic Attention Token by Brave Software, the two remain distinct projects. BAT is not limited to the Brave web browser and may be integrated into other web browsers and applications.


Notable developers on the Basic Attention Token team at Brave Software include:


In addition to proceeds from the initial coin offering totalling 156,250 Ether,[21] BAT and Brave Software have received at least $7 million USD in angel investments from venture capital firms such as Peter Thiel's Founders Fund, Propel Venture Partners, Pantera Capital, Foundation Capital, Digital Currency Group, among others.[22]

See also[edit]


  1. ^ "Basic Attention Token". Retrieved 17 Jul 2018.
  2. ^ "$35 Million in 30 Seconds: Token Sale for Internet Browser Brave Sells Out - CoinDesk". CoinDesk. 2017-05-31. Retrieved 2017-12-30.
  3. ^ Russell, Jon. "Former Mozilla CEO raises $35M in under 30 seconds for his browser startup Brave". TechCrunch. Retrieved 2017-12-30.
  4. ^ "Javascript creator's browser raises $35 million in 30 seconds". Engadget. Retrieved 2017-12-30.
  5. ^ "Basic Attention Token (BAT): Blockchain Based Digital Advertising" (PDF). Brave Software. 13 Mar 2018. Retrieved 17 Jul 2018.
  6. ^ "Google and Facebook Too Can Be Disrupted". 2017-12-08. Retrieved 2017-12-30.
  7. ^ "BAT Sale Overview and How to Participate". BasicAttentionToken. 2017-05-26. Retrieved 2017-12-30.
  8. ^ Russell, Jon. "Former Mozilla CEO raises $35M in under 30 seconds for his browser startup Brave". TechCrunch. Retrieved 2017-12-30.
  9. ^ "Ad-blocking browser Brave courts new users with free crypto tokens | VentureBeat". Retrieved 2017-12-30.
  10. ^ "This ad-blocking browser has some cryptocurrency for you". CNET. Retrieved 2017-12-30.
  11. ^ "You can get some Brave crypto tokens free to fund website publishers and YouTube stars". CNET. 2018-01-17. Retrieved 2018-02-25.
  12. ^ "Basic Attention Token is Giving Users Money to Jumpstart its Economy". Retrieved 2018-02-25.
  13. ^ GmbH, "Brave Launches Million Dollar Referral Program Supporting Publishers And YouTube Creators With Crypto-Tokens | Markets Insider". Retrieved 2018-02-25.
  14. ^ "If you're streaming videogames on Twitch, the Brave browser offers a new way to get paid". CNET. 2018-03-01. Retrieved 2018-03-01.
  15. ^ "Twitch Support". BasicAttentionToken. 2018-02-28. Retrieved 2018-03-01.
  16. ^ "Brave browser lets you pay your favorite YouTube stars". CNET. Retrieved 2017-12-30.
  17. ^ Russell, Jon. "Blockchain browser Brave makes push to reward content makers and YouTubers". TechCrunch. Retrieved 2017-12-30.
  18. ^ "A deal with Brave's ad-blocking browser and publisher Dow Jones shows how online ads might get less invasive". CNET. 2018-04-18. Retrieved 2018-04-29.
  19. ^ Keizer, Gregg. "Brave browser bets on BATs to the web". Computerworld. Retrieved 2017-12-30.
  20. ^ Inc, InfoWorld Media Group (1993-04-12). InfoWorld. InfoWorld Media Group, Inc.
  21. ^ Russell, Jon. "Former Mozilla CEO raises $35M in under 30 seconds for his browser startup Brave". TechCrunch. Retrieved 2017-12-30.
  22. ^ Perez, Sarah. "Brave, the ad-blocking browser from former Mozilla CEO, grabs $4.5 million". TechCrunch. Retrieved 2017-12-30.