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.
'Developed by Luxcore, LUX (LUX Coin) is a hybrid cryptocurrency utilizing both proof-of-stake and proof-of-work algorithms to enhance blockchain security and decentralization. Luxcore's hybrid consensus model imploys masternodes to provide specialized functions and further secure the chain while providing additional rewards to coin holders. The LUX blockchain enables developers to utilize smart contracts and decentralized applications. Luxcore continues to develop products for the LUX blockchain including Luxgate (a truly trustless, peer to peer decentralized exchange) and Luxedge (a decentralized software development platform and repository). LUX was created in 2017 as a fork of the Bitcoin codebase, but it has grown to not only keep up with new technologies in the cryptocurrency space, but has aimed to introduce new innovations and services to the broader crypto community with cross-chain and decentralized solutions.'