Welcome to Superchain Sunday - our weekly newsletter! Every Sunday, we will provide you with the latest news and updates in the world of the Superchain.
The Superchain accounts for over 66.6% of all Layer 2 transactions and sees 15.1M daily transactions. The network boasts 822 Unique Apps, contributing to the Optimism Collective. It is estimated that 245.4 ETH will be contributed to the Optimism Collective in August. Data Fetched from the Superchain Health Dashboard.
Optimism has teamed up with Flashbots to bring faster, more flexible, and verifiable sequencing to every OP Stack chain. As the Superchain now powers more than 60 percent of all Ethereum L2 activity, this partnership puts sequencing at the center of how OP Stack builders can differentiate, capture more value, and innovate at lower cost. From near-instant 200ms block confirmations to advanced tools like verifiable block building and Rollup-Boost, OP Stack projects will gain access to the same battle-tested infrastructure that already secures the majority of Ethereum blocks.
For builders, this means sequencing becomes a true platform feature. Chains can customize block building for their own use cases, capture MEV in-ecosystem to fund growth, and scale without exposing users to harmful practices like frontrunning. Soon, Flashblocks will roll out across OP Mainnet and the rest of the Superchain, giving developers the speed, programmability, and fairness to build the next generation of onchain applications. Read full details here.
Mercari and Sony Group have entered into a new collaboration to expand the reach of NFTs and digital content, powered by the Soneium blockchain developed by Sony Block Solutions Labs. The partnership kicks off with the launch of idol-related NFTs at @JAM EXPO 2025, supported by UP-T, marking the first major initiative to bring Web3 technology directly into mainstream pop culture.
Mercari, which already counts over 23 million monthly users and recently launched its own NFT marketplace, will integrate with Soneium to expand its digital offerings. For Sony, this partnership reflects its push to deliver new experiences that connect creators and fans through Web3. Together, the companies plan to grow NFT and digital content services across diverse IP, creating a new ecosystem where users can easily engage with Web3 value. Read more here.
Base has introduced the Base Mentorship Program, designed to give high-potential projects direct access to some of the sharpest minds in crypto and beyond. As the ecosystem grows, the program pairs builders with seasoned operators in areas like product, mini apps, design, growth, marketing, business strategy, and user acquisition—ensuring teams get the right guidance at the right time.
The first cohort of mentors includes top names from Standard Crypto, a16z crypto, Variant, Electric Capital, Haun Ventures, 1confirmation, and more. This initiative is not about fundraising or investment but about accelerating the next wave of breakout apps on Base with hands-on expertise and trusted advice. Sign up here.
Season 7 of the Optimism Collective focused on a shared objective: growing Superchain TVL ahead of interoperability. Contributors from across the Collective — including the Token House, Citizen House, OP Chains, OP Labs, and the Foundation — aligned around this goal and executed programs designed to drive liquidity and momentum. After the season, the Foundation and Open Source Observer conducted a detailed impact analysis to evaluate how effective these initiatives were in delivering ROI.
The review highlighted strong inflows and retention but also surfaced key challenges. Attribution across overlapping programs proved difficult, Retro Funding’s ROI remained hard to measure, and costs like OPEX were not factored into the initial evaluations. Moving into Season 8, adjustments will be made: reduced budgets for Retro Funding rounds, clearer methodologies for attribution, and expanded ROI reporting for internal token spend. These learnings set the stage for more data-driven governance and stronger impact going forward. Read the full analysis here.
The Superchain has grown to 33 different OP Chains, each with its flourishing Ecosystem. These are some extra stories to make your Sunday that much more Super.
