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.
Cosmochain is a complementary Company-to-Consumer platform that connects cosmetics product users and content creators to cosmetics product suppliers, including cosmetics companies, OEM/ODM manufacturers, R&D centers, and distributors. Through this platform, the Cosmochain Team aims to solve the aforementioned unmet needs of both companies and customers. All data collected from platform participants are kept confidential in this customer-centered ecosystem. Those who contribute their scarce time and attention toward producing and curating contents for others are compensated with tokens and receive pro-rata ownership of the contents they create. On the other hand, cosmetics product suppliers are able to actualize a wide variety of “on-demand” services on the platform by utilizing API that Cosmochain provides. Two different tokens and one internal virtual index make up the Cosmochain ecosystem: 1) The first token is an externally traded token called Cosmo Coin, 2) The second token as well as an index of contribution to the platform is Cosmo Power, which can be used to make payment within the platform and given out as rewards for activities, and 3) The one virtual index is called Cosmo Level. Cosmo Level, a reputation index, is designed to prevent abuse of power within the platform and can only be accumulated by actual activities and contribution. Having been assigned distinct roles within the Cosmochain platform, these three entities construct a healthy ecosystem. ● The success of the Cosmochain platform lies in the active participation of users – where customers create reliable data after trying out various cosmetics products and sharing the experience with one another on the platform. As a result, Cosmochain has designed its own transparent and fair reward system based on Steemit’s incentive model. ● The Cosmochain platform connects this user-created data to interested company participants and distributes the payment made by the company to customers as reward for use of the information. Through this reward system, Cosmochain aims to address two structural issues of social media-based platforms: 1) risk of inflation following the necessity of a long-term and great quantity of token issuance to grow the community, and 2) risk of decreasing attractiveness of contribution rewards after the inflation rate has been stabilized. ● In addition, the Cosmochain platform aims to realize an upgraded tokenization model that brings the power back to its users by redistributing the following: (i) the right to display ads in a user’s viewing space, (ii) the right to access a personally curated Marketplace, and (iii) the right to share personal data to partake in a study or survey. Simply speaking, the Cosmochain platform will go beyond simply allowing users to share onedimensional personal information. As such, Cosmochain serves the purpose of revolutionizing the cosmetics industry’s ecosystem by redistributing ownership and management authority of personal cosmetics data and contents to those in need, and through operations of transparent rewarding system for the redistribution of data.