The distribution of the ARB token implies a 27% allocation of the ARB token to the Arbitrum project team, and 17.53% to investors. Individual portfolios is only 11.62% of the allocation.

So how do we create a decentralized oracle? The model is as follows: a contract should ask several oracles to execute the same query, get results from each oracle, and then determine the correct answer on its own based on multiple results (answers from multiple oracles).

External data to the smart contract (from outside the blockchain) can be provided only, as parameters (arguments) of its call. Oracles are software running outside the blockchain, which listens for "requests" by smart contracts for external data, and then provides this data to the smart contract, by calling the appropriate…

Truffle Suite is the tool pack dedicated to Ethereum developers (focusing on smart contracts). That very actively developed project is currently one of the most popular frameworks for implementing, testing and running Ethereum based decentralized applications. In this article: I will describe the Truffle Suite tools; I will…

Sharding is going to be scalability solution in upcoming Ethereum 2.0 and the enhancement hope for many other blockchains. Scalability is the speed key factor of the blockchain. This word is used to describe all the technology solutions which have the major goal: processing more transactions per second. Currently Bitcoin…