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.
VLX, which is a global cross-border payments and blockchain-enabled cryptocurrency launched by Vallix, will be an integral core connecting market leaders in the tourism & hospitality market. Vallix is a blockchain alliance in tourism & hospitality industry. It will introduce blockchain and VLX Token to tourism & hospitality industry to solve the problems of over concentration, lack of trust and low payment efficiency.