OP Stack: Open-Source Blockchain Framework for Ethereum Scaling

The **Superchain ecosystem** now handles **14.1% of all cryptocurrency transactions**, representing nearly **2x growth** in just five months. **Key metrics:** - $17.8B secured across 30+ chains - 24M+ daily transactions - $6.2B in stablecoins onchain Major chains include Base, Celo, OP Mainnet, Unichain, World Chain, and others building on Ethereum's scaling infrastructure. This growth demonstrates the **increasing adoption** of Layer 2 solutions as users seek faster, cheaper transactions while maintaining Ethereum's security. [View complete Superchain statistics](https://stats.optimism.io/)

**Fusaka is now live on Ethereum mainnet**, delivering the infrastructure needed for Layer 2 scaling. The upgrade introduces **PeerDAS**, which allows validators to sample small data chunks instead of downloading full blobs. This reduces storage requirements from 40-100 GB to just sampled shards. **Key improvements:** - More blob capacity for rollups through Blob Parameter-Only forks - Gas limit increase from 45M to 60M - Lower data availability costs for L2s - Reduced fees for end users The upgrade emerged from **cross-ecosystem collaboration** between Ethereum core developers, client teams, Base, Soneium, OP Labs, and Sunnyside. Teams worked together to solve L2 scaling bottlenecks that were causing rising fees. **For builders:** OP Stack chains now have more throughput headroom, lower L1 data costs, and a predictable scaling roadmap. The implementation included extensive testing through devnets that pushed different client combinations under real rollup workloads. Read the full technical details: [Optimism blog post](https://www.optimism.io/blog/fusaka-is-live-scaling-optimism-and-the-superchain)

**Scaling isn't just about bigger numbers** - it's about delivering real value to users, according to insights from @karl_dot_tech at the New Horizon event. Key challenges identified: - Compute bottlenecks - Parallelism implementation - Cross-chain liquidity issues **Real progress requires solving these together**, not chasing TPS metrics alone. *"Through interoperability, we grow the pie. You can build something a competitor builds on, and both of you win."* The focus shifts from raw performance claims to **practical solutions** that enhance user experience and enable true blockchain collaboration.

Optimism Collective announces its H2 strategic goal: achieving $100M monthly in cross-chain asset transfers across interoperable Stage 1 chains. The Citizens House introduces three stakeholder groups: - Top 15 chains by revenue - Top 100 apps by gas fees - End-users with verified activity Key registration requirements: - End-users must prove human status via WorldCoin - Limited spots available - Sybil protection through HumanPassport screening This follows Optimism's recent $2M bug bounty extension for Superchain protocol upgrades, which has already paid out $2.6M since 2022. [Register for citizenship](http://atlas.optimism.io/citizenship)

The Superchain ecosystem continues to expand with the OP Stack emerging as the dominant L2 solution. Key metrics include: - 50+ chains and $17B+ in TVL - 6 of top 10 L2s running OP Stack - Powers 70% of all L2 transactions Recent developments: - Four networks (OP Mainnet, Base, Unichain, Ink) reached Stage 1 decentralization - Flashblocks upgrade reducing transaction times to ~200ms - Native interop features coming this summer - Growing number of teams joining Superchain Incubator The platform emphasizes security, speed, and seamless cross-chain interactions while maintaining Ethereum compatibility.