About Arbitrum: An Ethereum Layer-2 Scaling Solution

Arbitrum is an Ethereum layer-two scaling solution developed by Offchain Labs, a New York-based development company founded by former Princeton University researchers Ed Felten, Steven Goldfeder, and Harry Kalodner. Arbitrum aims to improve the speed, scalability, and cost-efficiency of Ethereum transactions by leveraging optimistic rollups, a technique that moves most of the computation and storage load off the primary Ethereum blockchain.

As a result, Arbitrum can offer several advantages over other scaling solutions, such as compatibility with unmodified Ethereum Virtual Machine (EVM) contracts and transactions, lower fees, higher throughput, and a decentralized network of validators who stake its native governance token, ARB.

ARB Token and Governance

ARB is the native governance token of Arbitrum, enabling decentralized governance of the platform. ARB holders can vote on proposals that affect features, protocol upgrades, funds allocation, and the election of a Security Council. The total supply of ARB tokens is fixed at 10 billion, with a distribution that includes the Arbitrum DAO treasury, Offchain Labs teams and advisors, investors, and airdrops to users and DAOs.

Security

Arbitrum derives its security from the Ethereum network, which provides consensus and finality for its transactions. By using optimistic rollups, the platform executes transactions off-chain and bundles them in a batch before submitting them to the mainnet. This approach assumes off-chain transactions are valid and does not require proof-of-validity, relying on a time period after the rollup submission during which anyone can challenge the transaction by submitting a fraud proof.

Founders and Funding

Offchain Labs has attracted investment from prominent investors like Lightspeed Venture Partners, Polychain Capital, Pantera Capital, and Mark Cuban. In 2021, the company raised $120 million in its Series B funding round, valuing it at $1.2 billion.

Unique Features and Benefits

• Compatibility: Arbitrum supports unmodified EVM contracts and transactions, allowing any existing Ethereum decentralized application (DApp) to run on the platform without any code changes.
• Scalability: Arbitrum can handle thousands of transactions per second while maintaining the security guarantees of Ethereum.
• Flexibility: The platform allows developers to deploy programs written in popular programming software languages like Rust, C++, and more using Stylus, an upcoming EVM+ equivalence feature.
• Decentralization: Arbitrum does not rely on any centralized operator or sequencer to order transactions, using a decentralized network of validators who stake ARB tokens and earn fees for securing the network instead.

Team Background

Arbitrum is developed by Offchain Labs, a New York-based development company founded by former Princeton University researchers Ed Felten, Steven Goldfeder, and Harry Kalodner. The team has been researching and developing Arbitrum for over eight years, with a focus on solving Ethereum scaling issues without compromising security.

Ed Felten served as President Obama's Deputy CTO before returning to Princeton and resuming his research on roll-up technology, eventually leading to the creation of Arbitrum. Steven Goldfeder and Harry Kalodner were both Ph.D. students at Princeton before founding Offchain Labs with Felten.

Current and Upcoming Project Developments

Arbitrum has recently reached a milestone, with the launch of Arbitrum DAO for the Arbitrum One and Arbitrum Nova networks. This launch marks a significant step towards decentralization of the platform and enables community-driven governance with the $ARB token.

Another recent development is the launch of Arbitrum Orbit, which allows developers to create their own Layer 3 (L3) blockchain in the Arbitrum ecosystem. With the upcoming release of Arbitrum Stylus, developers will have the flexibility to write programs using popular programming languages such as C, C++, and Rust, in addition to Solidity and other Ethereum-compatible languages.

Native USDC is set to launch on Arbitrum on June 8, 2023, providing fully reserved and always redeemable 1:1 US dollars. This brings institutional-grade on/off-ramps via Circle and other partners and eliminates bridge withdrawal delays.