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.
The Force Protocol is committed to creating an open source open source platform for distributed crypto-finance, providing solutions based on cross-chain technology to developers of crypto-financial services applications. Specifically, The Force Protocol will be based on the current mainstream public chain and t The Force Protocol public chain in the future, through the abstraction and encapsulation of the universal module of the crypto-financial business, providing services in the form of SDK and API. On this basis, application services only need to be oriented to interface programming, focusing on the implementation of business logic, without the cost of implementing and maintaining the underlying technology of the blockchain.