Guide to Arbitrum and setting up Metamask for Arbitrum
Arbitrum is a next-generation layer-2 for Ethereum.
A layer-2 solution supports scaling for Ethereum by facilitating transactions through off-chain means before bundling and submitting them as a single transaction to the base layer.
This means that transactions on layer-1 Ethereum will not be bogged down by huge amount of transaction requests.
The use of roll-ups have quickly become the de-facto solution for scaling Ethereum on layer-2, as they have the ability to run smart contracts off-chain, then bundled together and batch settle on the main chain.
Existing layer-2 solutions
There exists a couple of layer-2 solutions, for example, Optimistic Ethereum by Optimism, zkSync and more.
These are not side-chains like Binance Smart Chain or Polygon, but rather, allow for layer 1 security where the layer 1 smart contract acts as an escrow over a counterparty.
The suite of layer-1 scaling solutions like Polygon and Harmony and layer-2 scaling solutions alike will remain in place until Eth 2.0 is fully live on the mainnet.
Arbitrum
Arbitrum is built by Offchain Labs, a world-class team of researchers, engineers, and Ethereum…