Basic Attention Token (BAT) is an open-source, decentralized ad exchange platform built on Ethereum platform. 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. The Basic Attention Token aims to fix digital advertising, which is broken, fraudulent and opaque. Basic Attention Token work by having advertisers pay BAT to website publishers for the attention of users. The BAT token is designed to correctly value and price user attention within the platform. The Basic Attention Token comprises various components, including attention measurement systems, analytics dashboards and machine learning algorithms. 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. BAT is focused on the Brave browser. Brave is an open-source, privacy-centered browser designed to block trackers and malware. It utilizes blockchain technology to anonymously and securely track user attention, which translates into rewards for publishers. A user's attention, meaning his or her focused mental engagement on digital content like advertisements, is logged through Brave. The makers of BAT indicate that the user's private data and tracking information is stored only on the user's device, ensuring that it is anonymous and private. Created back in 2016, the Basic Attention Token has one of the biggest names behind it, that of Brendan Eich, the creator of JavaScript and the legendary co-founder of Mozilla. Other noteworthy team members include Brian Bondy, lead developer and co-founder of Brave and Scott Locklin, senior engineer, and co-founder of Kerf Software.' Basic Attention Token is created by the team that built the Brave browser, an open-source, privacy-focused browser that blocks ads and trackers. The browser measures user attention and rewards publishers for users attention. Use the Brave browser to protect your privacy and support CoinGecko at the same time: https://brave.com/coi600
Dai is a stablecoin. It is an Ethereum ERC20 token that is pegged to $1 USD — every Dai is worth $1, and will always be worth $1, regardless of how much Dai is in existence. There is no centralized authority like Tether that backs its value, and no traditional bank that backs each Dai with a real US dollar. There is nothing that can be shut down, and no centralized authority that needs to be trusted. Dai lives entirely within the Ethereum blockchain using smart contracts. *Features of Dai: 1. Dai is always worth $1 USD each 2. It can be freely traded like any other ERC20 token 3. Anyone with an Ethereum wallet can own, accept, and transfer it 4. It can be exchanged without any middleman 5. No individual person or company has control over it 6. No government or authority can shut it down *How Dai Works? Dai is a masterpiece of game theory that carefully balances economic incentives in the pursuit of one goal — a token that is continuously approaching the value of $1 USD. When Dai is worth above $1, mechanisms work to decrease the price. When Dai is worth below $1, mechanisms work to increase the price. The rational actors that take part in these mechanisms do so because they earn money anytime Dai is not perfectly worth $1. This is why Dai is always floating slightly above or below $1 — it is an endless wave function bouncing infinitely close to $1, but never quite achieving it. The farther Dai goes from $1, the more incentive there is to fix it. This is the magic of Dai. *How is Dai Created? Dai is simply a loan against Ethereum. By using the MakerDAO dApp, advanced users can take loans out in Dai against their ETH holdings. First, ETH is turned into “wrapped ETH” (WETH), which is simply an ERC20 wrapping around ETH. This “tokenizes” ETH so it can be used like any other ERC20 token. Next, WETH is turned into “pooled ETH” (PETH), which means it joins a large pool of Ethereum that is the collateral for all Dai created. Once you have PETH, you can create a “collateralized debt position” (CDP), which locks up your PETH and allows you to draw Dai against your collateral, which is PETH. As you draw out Dai, the ratio of debt in the CDP increases. There is a debt limit that sets a maximum amount of Dai you can draw against your CDP. Once you have Dai, you can spend or trade it freely like any other ERC20 token. *There are several important reasons why you would create Dai, despite the hassle: 1. You need a loan, and have an asset (ETH) to use as collateral for your loan 2. You believe ETH is going up in value. You can use your CDP to buy ETH on margin — you lock up your ETH in a CDP, draw Dai against it, use the Dai to buy more ETH on an exchange, and then use that ETH to further increase the size of your CDP. This can be accomplished without any third-party or centralized authority allowing you to do so — margin trading can be accomplished entirely on the blockchain. 3. The demand for Dai has driven the price above $1 USD. When this occurs, you can create Dai then immediately sell it on an exchange for greater than $1 USD. This is essentially free money, and is one of the mechanisms the Maker system uses to keep Dai pegged to $1 USD. Dai being worth over $1 USD encourages more Dai to be created. These three reasons are enough to ensure that Dai is continually created.