Arbitrum Bridge is the main gateway to transfer ETH and ERC-20 tokens from Ethereum (Layer 1) to Arbitrum (Layer 2).

You only need to connect your wallet to initiate the bridging process on Arbitrum Bridge.

>> ZKsync Airdrop <<

>> Matic Faucet <<

>> Polygon ZKEVM <<

Bridge to Arbitrum

1. Connect to Arbitrum Bridge with your wallet

• Go to Arbitrum Bridge at bridge.arbitrum.io
• Click ”Connect Wallet’, choose ‘Wallet Connect’
• Scan the QR with KEYRING PRO
• On KEYRING PRO app, choose Ethereum chain, tap ‘Connect’

2. Choose either Arbitrum One or Arbitrum Nova to bridge to

3. Select a token to bridge from Ethereum Network

4. Enter the amount of ETH/token, then click ‘Move funds to Arbitrum’

5. On KEYRING PRO, tap ‘Confirm’

You will receive the bridged token from Arbitrum Bridge in less than 1 hour.

What is Arbitrum?

The concept of Arbitrum

The aggressive growth of Ethereum in the last few years has led to frequent network congestion and soaring transaction fees.

This issue is so-called the problem of scalability due to network infrastructure limitation.

Therefore, various scaling solutions such as Layer 2, sidechains have been introduced to support the Ethereum network (Layer 1).

Those new chains help users to transfer assets to a faster and cheaper environment that running parallelly to the Ethereum blockchain.

Arbitrum is one of those projects. It uses the idea of optimistic rollups to lower gas fees for transactions.

Basically, optimistic rollups allow smart contracts to “roll up” off-chain transactions into bundles, which spreads the costs of the bundled transactions efficiently.

As a result, Arbitrum optimistic rollups can lower gas fees and reduce network congestion, while enduring high security standards.

Arbitrum was developed by Offchain Labs, a New York-based company.

The network was built with certain advantages.

• Trustless security: Security established by Ethereum network, with interoperability results between Layer 1 and Layer 2.
• Compatibility with Ethereum: Capable of running unmodified EVM contracts, or unmodified Ethereum transactions.
• Scalability: Shift contracts’ computation and storage off the main Ethereum chain, allowing much higher throughput.
• Minimum cost: Minimize cost per-transaction incomparison to Ethereum.

Arbitrum RPC

Arbitrum One RPC

• Chain ID: 42161
• Network Name: Arbitrum One
• RPC: https://arb1.arbitrum.io/rpc
• Currency Symbol: ETH
• Block Explorer URL: https://arbiscan.io

Arbitrum Nova RPC

• Chain ID: 42170
• Network Name: Arbitrum Nova
• RPC: https://nova.arbitrum.io/rpc
• Currency Symbol: ETH
• Block Explorer URL: https://nova-explorer.arbitrum.io

>> What is Rinkeby Etherscan <<

>> What is Avalanche Subnet <<

>> What is Binance Smart Chain Faucet <<

Add Arbitrum RPC to KEYRING PRO

Arbitrum is supported natively on KEYRING PRO, but you may learn how to add RPC on KEYRING PRO in the steps below.

1. Download KEYRING PRO on iOS, Android, APK, Huawei App Gallery, or Mac M1
2. Create a multichain account
3. Add RPC

• On home screen, tap ‘Menu’ icon
• Choose ‘Manage Chains’
• Tap on the ‘+’ icon
• Insert RPC parameters, please refer to the RPC section above.
• Tap ‘Add’
• On the home screen, choose an address you want to use on the newly added chain, or you can create a new account
• Choose ‘Use this address with other chains’
• Choose the newly added chain
• Tap ‘Create’

>> What is GMX Crypto <<

>> What is Metis RPC <<

>> What is Matic Faucet? Mumbai RPC <<

>> What is Avalanche Subnet <<

>> 03 Things you should know about Bitcoin Rejoin <<

>> Crypto Rich Deluxe Trading Cards <<

Avalanche, Arbitrum, and Optimism now all go live on KEYRING SWAP.

With this update, the swapping limit has been extended to a new level, where users possess unlimited access to every token on the three newly added chains.

As always, the app will sort out the best rate among available DEXs in every trading session.

Unseekable tokens are also approachable by pasting contract address onto the ‘Select token’ bar.

By using the app, professionals will need less time to execute trade order as everything stays in one place, which means more time for market research.

GO TO KEYRING SWAP >>

Seamless Chain Switch

Switching chain now appears on top of KEYRING SWAP in a drop down box.

The feature is modified to match KEYRING PRO’s operation perfectly.

For instance, when Bob switches from Ethereum to Avalanche on KEYRING SWAP, the KEYRING PRO app will appear with a popup to confirm the switching process. Bob only needs to tap ‘Confirm’ to completely switch from Ethereum to Avalanche.

Access Bridge and Block Explorer on Arbitrum, Optimism

Arbitrum and Optimism have risen as dedicated L2 of Ethereum that aim to solve the agony scaling issue.

They reduce time spent on processing transaction and gas fees.

To start the exploration, users need to transfer assets from Ethereum to those two chains via their bridges.

Those bridges are indexed on KEYRING SWAP’s switch chain section.

Besides, the section also displays shortcuts to block explorers and help sites of the two chains.

Connect Arbitrum Bridge

1. Choose ‘Arbitrum Bridge’ on switch chain section, or access bridge.arbitrum.io
2. Tap ‘Log in’, choose Wallet Connect
3. Choose KEYRING PRO app, or scan the QR with the app
4. Tap ‘Confirm’ to establish the connection
5. Choose an asset to convert
6. Insert an amount
7. Tap ‘Deposit’
8. On KEYRING PRO, tap ‘Confirm’
9. The converted asset will appear in your Arbitrum wallet with the same address on Ethereum.

Connect Optimisim Bridge

1. Choose ‘Optimism Gateway’ on switch chain section, or access gateway.optimism.io
2. Tap ‘Connect Wallet’, choose Wallet Connect
3. Choose KEYRING PRO app, or scan the QR with the app
4. Tap ‘Confirm’ to establish the connection
5. Choose an asset to convert
6. Insert an amount
7. Tap ‘Deposit’
8. On KEYRING PRO, tap ‘Confirm’
9. The converted asset will appear in your Optimism wallet with the same address on Ethereum.