Arbitrum
Arbitrum is a Layer 2 scaling solution that operates alongside Ethereum Mainnet, offering improved transaction speeds and reduced costs for Ethereum developers. Founded in 2021 by Steven Goldfeder and Harry Kalodner, it is EVM-compatible and can be accessed via its node API, which is also compatible with Ethereum's JSON-RPC API implementation.
Since Arbitrum is compatible with EVM, it supports Ethereum tools and DApps. In theory this allows developers to easily port their projects from Ethereum. It is also easy for the user to configure applications such as MetaMask to work with the Arbitrum by simply tweaking a few settings.
Developers can use the connection endpoints provided by the API to interact with the data on the Arbitrum and send different types of transactions to the network. The API follows the JSON-RPC standard. JSON-RPC is a stateless, lightweight remote procedure call (RPC) protocol commonly used when interacting with on-chain.
Get testnet ETH
Arbitrum uses Ethereum to confirm transactions on the Arbitrum network. To get test tokens for the Arbitrum testnet, you first need to use a faucet to obtain Ethereum Rinkeby testnet ETH. Then you can migrate those tokens to the Arbitrum Testnet using the Arbitrum bridge.
For more information about Arbitrum, please see the official Arbitrum documentation.
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