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.
'DigitalNote describes itself as a decentralized Proof-of-Work(bmw512)/Proof-of-Stake(echo512) hybrid blockchain with fast, untraceable transactions and encrypted messaging features. The network is reportedly resistant to 51% attacks via its VRX v3.0 technology and it is mobile-ready with lightweight wallet functionality. A masternode network reportedly enhances untraceability and provides incentive for users to secure the network, whilst enabling fast private transactions and P2P messaging that are difficult to trace or censor. Miners and stakers are encouraged to participate via network fee payouts, facilitating consistent block generation and a fast network. DigitalNote was originally released as ''duckNote'' by an anonymous individual or group of individuals under the pseudonym ''dNote'' in 2014. Over the years more advancements were added to the protocol, with each major upgrade rebranding the name of the protocol (first ''DarkNote'' and then ultimately ''DigitalNote''). Much like Bitcoin's ''Satoshi Nakamoto'', the original founder(s) vanished in 2017, leaving the open source code to be updated by a community team who have since continued development.'