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.
SLT is an Etherum (ERC20) based token with a goal to create fully transparent decentralized cryptocurrency exchange platform which is focused on the needs of its users. Platform will focus on revolutionizing transactions speed and achieving instantaneous execution with successful use of maximum what blockchain technology can provide INSTEAD of centralized processing. As an extra feature this exchange will have its own prepaid card from which every member can cash out their profits.