Arbitrum is a layer 2 scaling solution for Ethereum that uses optimistic rollups to provide faster, cheaper, and more scalable transactions. This allows developers to build and deploy decentralized applications (DApps) as they would on Ethereum, but with lower fees and faster confirmations for users.
What is Arbitrum?
Arbitrum is a set of Ethereum scaling technologies built on the Arbitrum Nitro technology stack. The network uses optimistic rollups to execute transactions off-chain, aggregating them together and publishing the summary on Ethereum. These results are considered valid unless challenged, in which case Ethereum verifies the disputed transactions.
The Arbitrum package includes:
Arbitrum One: a public rollup chain implementing the Arbitrum Rollup protocol, where all transaction data is published on Ethereum for maximum trust level.
Arbitrum Nova: a public AnyTrust chain implementing the Arbitrum AnyTrust protocol, which stores transaction data off-chain with the Data Availability Committee (DAC) to reduce fees.
Arbitrum Orbit Chains: fully customizable chains that can operate as layer 2 networks (connecting to Ethereum) or layer 3 networks (connecting to another L2), tailored to specific performance, governance, and cost requirements.
How Arbitrum works...(read the detailed description in the official Binance Academy article)
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