'Kin is money for the digital world. It is an open micro-transaction platform used by millions of users across more than 50 consumer applications and services, making Kin the most used cryptocurrency by mainstream consumers. Kin can be sent anywhere in the world, instantly, and for free. Kin enters circulation via the Kin Rewards Engine, or ''KRE'', which rewards developers for getting their consumers to use Kin. Today people are using Kin to purchase a variety of digital goods and services and to support content creators. This offers developers a new business model that rewards the adoption of engaging experiences and free exchange of value between users, not harvesting their data and attention. That means users and developers are finally re-aligned, around a new economy in which those who generate value online are the focus, not big-data monopolies.'
Smart contracts on Ethereum are fully self contained and any information or access to off-chain data is restricted. Tellor solves this problem by creating a system where parties can request the value of an off-chain data point (e.g. ETH/USD) and miners compete to add this value to an on-chain data bank, accessible by all Ethereum smart contracts. Inputs to a data series are secured by a network of staked miners. The main Tellor smart contract creates a time series of each requested data series and aims to become the standard source of high value data for decentralized applications. This oracle, “Tellor”, utilizes similar incentive mechanisms to other cryptocurrency systems through the issuance of Tellor’s token, Tributes, that are used to request a particular data series from miners.