Blockchain "engineering" has a lot illusions. Whenever you enter the DAPP (web page) which reads data from the blockchain - it reads it from a blockchain node, through a provider. Does it mean that DAPP creators operate a node and integrated a…

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.

Cardano is built on Haskell and based on the dedicated Ouroboros consensus algorithm. The blockchain's cryptocurrency is ADA.

Chainlink Oracles, data feeds, VRF and automation - these are leading features of Chainlink available for smart contracts and web3

Data feeds are data "produced" by oracles, published on the blockchain, available to be read for free by smart contracts.

The oracle's business model is to execute off-chain (off-blockchain) queries and return them to the contract in exchange for a fee, which the contract pays by asking oracles for off-chain data.

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…