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.
Nexty is a Fintech ecosystem which helps e-commerce and technology startups to raise funds from community Nexty itself has a cryptocurrency named NTY with various dominant features such as Instant Transfer, Zero Transfer Fees and Dual Crypto Currency Dual Cryptocurrency Confirmation System includes two types of Cryptocurrency operating in parallel. The former called NTY, is the main cryptocurrency for using in daily transactions. The latter called NTF, is for transaction confirmation system.