Big day for the Superchain. 🔴✨ We’re integrating ZK more deeply into the OP Stack, and are excited to announce that @SuccinctLabs is our first preferred proving partner in this area. Validity proofs are going — and withdrawals are about to get faster. Here's what that means. ⸻ THE 7-DAY PROBLEM Optimistic rollups have a 7-day challenge window. Anyone can challenge a bad state transition during that period. For most users, this is abstracted away with app-layer bridges. For institutions? Different story. Custody providers can't lock capital for a week every time they move funds off L2. Market makers need capital efficiency across positions. Treasury teams need faster withdrawal finality that matches traditional infrastructure expectations. The 7-day window was always a tradeoff. Now we're addressing it. ⸻ ZK CHANGES THE MATH With validity proofs, we don't wait for challenges. We prove the state transition cryptographically. When the proof verifies on L1, the withdrawal is final. The goal: instant, real-time withdrawals. ⸻ WHY SUCCINCT Their proving system works — fast proving, low costs, compatible with our existing architecture. @SuccinctLabs secures billions in TVL across the ecosystem. OP Succinct, their proving engine for the OP Stack, is a drop-in upgrade. Deploy one smart contract, spin up a lightweight proposer service. Everything else — sequencer, batcher, op-node — stays the same. We built the OP Stack to be modular for exactly this reason. ⸻ THIS ISN'T ABOUT CHEAP TRANSACTIONS L2s were never just "cheaper Ethereum." That framing missed it. The best Superchain deployments aren't discount L1s. They're doing things L1 structurally can't: * Sub-200ms blocks for real-time apps * Embedded distribution (Base: 110M Coinbase users) * Custom sequencing for specific use cases * Native identity infrastructure (World Chain) * Exchange-integrated DeFi (Ink) These bring real users, real distribution, real use cases that didn't exist before. ZK validity proofs unlock real economic efficiency for users & institutions. ⸻ WHAT THIS UNLOCKS * Custody providers can move client assets without locking capital for a week * Market makers gain capital efficiency across L2 positions * Treasury operations get faster withdrawal finality, matching expectations from traditional infrastructure ⸻ MULTI-PROOF FUTURE This is step one. The vision: OP Stack chains choose the prover networks that fits their needs. Different security tradeoffs, different cost profiles. Modular infrastructure, sovereign choices. After ZK goes live on OP Mainnet, every OP Stack chain can upgrade seamlessly. We’re bringing fast withdrawals with strong cryptographic security to the Superchain! ⸻ The OP Stack was designed for this moment! ZK for your Blockchain. Your Revenue. Enterprise Guarantees. Thanks to @SuccinctLabs and @pumatheuma for building what we needed. Full announcement: optimism.io/blog/optimism-pa…

as part of decentralizing @base, we'll be transitioning our bridge UI to point to open source, public bridges like @superbridge all the underlying contracts and token registry will remain the same — we just won't be running the UI! try it out: superbridge.app/base

Fully believe that for the next 2-3 years we'll see many companies try to launch their own chains. Also believe equally as strongly that the vast majority will conclude that infra is very hard, not core, and not worth it.

CCTP V2 is now live on @world_chain_! Developers and their users can now transfer @USDC securely between World Chain and supported blockchains at near-instant speeds. With CCTP V2, you can: 💸Enable crosschain onboarding for your app by allowing USDC deposits directly from supported blockchains. ⚖️Meet withdrawal demand for USDC on World Chain on your exchange by rebalancing 1:1 with CCTP V2 behind the scenes. ✨Accept USDC payments for your marketplace from multiple blockchains. Users never need to think about which supported blockchain they hold their USDC on. With no need to lock up liquidity or rely on third-party fillers, CCTP V2 maximizes capital efficiency and minimizes trust assumptions. Apps, bridges, exchanges, and infrastructure providers are expected to support CCTP V2 on World Chain, with @AcrossProtocol, @BungeeExchange, @CCTPMoney, @daimopay, @InterportFi, @portalbridge_, @routerprotocol, @SOCKETProtocol, @superbridge, and @wormhole live on Day 1! With the addition of World Chain, CCTP V2 can facilitate USDC transfers in a many-to-many fashion between World Chain and the network of supported blockchains including @arbitrum, @avax, @base, @ethereum, @LineaBuild, and @SonicLabs – with more expected this year. Start building today: circle.com/cctp