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 Beetle coin is an open source decentralized cryptocurrency which provides instant and low fees transactions all around the world through the Beetlecoin network. Anyone can participate in the operation of Beetle coin network by either allocating computing power in mining or staking the coins. On average, Beetle coin block network requires two minutes to generate a new block, and all transactions are carried out over the internet, unlike fiat money transactions which require intermediary financial institutions or banks.