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.
Platon Finance is the first insured crypto-financial ecosystem based on a Ethereum blockchain, connecting the classic fiat money market with modern digital currencies via its own ERC-20 standard token, PlatonCoin. Thanks to high-security standards by the latest Symantec technologies and the crypto insurance against cyber theft by a Lloyd's syndicate, Platon Finance is bringing a unique blockchain-based solution to the increasing security issues around digital assets.