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.