List of the Top 4 Layer 2 Protocols for The Graph in 2026

Scroll is specifically designed for Ethereum developers, acting as a swift, reliable, and scalable Layer 2 blockchain that enhances Ethereum's capabilities while enabling applications to grow effortlessly. It allows for a smooth transition of Ethereum applications to Scroll with bytecode-level compatibility, significantly reducing expenses in the process. Our focus on open development encourages collaboration among contributors who are driven by shared values, leading to the creation of more secure and well-architected systems. By prioritizing a community-focused approach, Scroll aspires to transform and progress the trajectory of Ethereum. Employing advanced zero-knowledge proof technology alongside established EVM frameworks and comprehensive audits, Scroll ensures that our platform is built on a foundation of security and dependability. Moreover, by emphasizing code security through joint open-source initiatives, Scroll protects both developers and users from potential threats, nurturing a resilient ecosystem for innovation. This commitment to security and community engagement not only strengthens our platform but also bodes well for the future of Ethereum as we strive to adapt and advance in the evolving digital landscape. Our vision is to create an environment where developers and users can thrive together, driving further advancements in blockchain technology.

Unichain operates as a Layer 2 solution focused on decentralized finance (DeFi) within the Ethereum ecosystem, designed to serve as a pivotal center for cross-chain liquidity. This innovative platform improves both transaction speed and cost-effectiveness, featuring remarkable block times of only one second and aiming to reduce transaction fees to one-twentieth of conventional Ethereum rates. Leveraging the OP Stack framework, Unichain prioritizes scalability while promoting open-source development, with aspirations for future implementations like Provable Block Building. It caters specifically to the requirements of developers and users in the DeFi space, providing extensive resources for the creation of liquidity pools and the deployment of smart contracts. With a rich background in building the largest decentralized trading protocol in the world, Unichain guarantees that its technological advancements remain open-source, encouraging other rollups to adopt these innovations effortlessly. Furthermore, a dedicated network of full nodes diligently monitors and verifies the sequencer's operations, contributing to enhanced transaction speeds and decentralization within the Unichain network. By fostering transparency and active community participation, Unichain is strategically positioned to lead the charge in the rapidly changing world of decentralized finance, continuously adapting to the evolving demands of this dynamic sector.

Rootstock emerges as a pioneering Bitcoin sidechain that merges the robust smart contract capabilities of Ethereum with Bitcoin’s unmatched security features. As an open-source platform, it leverages Bitcoin's proof-of-work consensus mechanism and utilizes more than 60% of Bitcoin's hashing power through merged mining, which greatly enhances its reliability. This collaboration enables developers to build EVM-compatible smart contracts, thereby fostering the development of decentralized applications that capitalize on the robust security of Bitcoin's network. The platform's native currency, RBTC, is pegged to Bitcoin at a 1:1 ratio, which streamlines interactions with decentralized finance (DeFi) protocols and dApps, enabling seamless processes like minting, swapping, and gas fee payments. Furthermore, the PowPeg protocol is essential for ensuring secure and efficient two-way transactions between Bitcoin and Rootstock, which significantly boosts the interoperability of both networks. Rootstock's growing ecosystem provides users with diverse applications, allowing them to swap, stake, and optimize yields using platforms like Sushi and Beefy, as well as trade on Oku, showcasing the platform's versatility and broad appeal. Consequently, Rootstock not only creates an environment rich in opportunities for developers but also empowers users to fully explore and leverage the advantages of blockchain technology in their daily activities. With such a comprehensive framework, Rootstock stands poised to play a vital role in the future of decentralized finance and blockchain innovation.

Hemi introduces a groundbreaking modular Layer-2 blockchain framework that seamlessly fuses the strong security of Bitcoin with the versatile programmability of Ethereum by embedding a full Bitcoin node within an Ethereum-compatible framework known as the Hemi Virtual Machine (hVM). This pioneering architecture allows developers to craft Solidity smart contracts that can interact with Bitcoin data directly, eliminating the need for bridges or synthetic assets. Through its distinctive Proof-of-Proof (PoP) consensus method, Hemi ensures “superfinality,” linking transactions to Bitcoin blocks to maintain high integrity and protect against reorganizations, while also facilitating swift finality. Furthermore, the Hemi Bitcoin Kit (hBK) provides developers with vital resources to build genuine Bitcoin-centric DeFi solutions, such as lending, staking, automated market makers, MEV systems, and multi-chain DAOs, all utilizing real BTC for collateral or yield generation. Consequently, Hemi not only broadens the horizons of decentralized finance but also enhances collaboration between two of the most influential blockchains in the cryptocurrency world. Ultimately, this innovative framework sets the stage for unprecedented interoperability and financial possibilities within the blockchain ecosystem.