World Chain Upgrades to Native USDC on OP Stack

A major US exchange captured **$75 million in sequencer revenue** during H2 2025 by operating its own OP Stack chain instead of renting infrastructure. **Key Economics:** - Owning infrastructure = 100% revenue retention - Renting space = revenue goes to the provider - Full control over fee structures and block space allocation **OP Enterprise Benefits:** - Managed deployment and operations - Pre-integrated ecosystem (RPCs, oracles, bridges, indexers, wallets) - Compliance and custody solutions included - Teams focus on product development, not infrastructure management H2 2025 performance across CEX OP Stack chains showed $495M in app revenue, 6B transactions, and $5.5B in smart contracts—demonstrating the financial case for ownership over rental models.

QuickNode has launched its Earn product on OP Mainnet, marking another milestone for the infrastructure provider's expansion on the OP Stack. The deployment brings QuickNode's earning capabilities to Optimism's Layer 2 network, allowing users to access staking and yield opportunities directly on the platform. **Key Points:** - QuickNode Earn now available on OP Mainnet - Continues QuickNode's integration with OP Stack infrastructure - Expands earning options for Optimism users The Optimism team expressed enthusiasm about QuickNode's continued development on their network, signaling ongoing collaboration between the two projects.

**DB Securities is developing STO and real-world asset infrastructure for Jeju using the OP Stack.** The company chose this approach to maintain ownership and control over their infrastructure. This follows Optimism's recent partnership with Toss, South Korea's leading payment platform serving two-thirds of the country's population. Together, they're testing the OP Stack as a foundation for compliant blockchain-based digital finance infrastructure. The moves signal growing institutional adoption of Ethereum scaling solutions in South Korea's financial sector.

**Ink's approach to scaling onchain finance** focuses on integrating blockchain technology into applications users already trust, keeping the underlying chain invisible to end users. **The key to this strategy** is maintaining a reliable settlement layer that can handle high transaction volumes. Ink achieves this by running on OP Enterprise Fully Managed infrastructure. - Enables seamless user experience without exposing blockchain complexity - Provides programmable financial infrastructure for large-scale growth - Ensures dependable performance as transaction volume increases This partnership demonstrates how enterprise-grade blockchain infrastructure can support mainstream financial applications.

**Privacy Boost is now deployed on OP Mainnet and Soneium**, marking a significant step in bringing confidential transactions to the OP Stack. The deployment sets the stage for **Toss to run a won-linked stablecoin trial** reaching approximately 30 million users in South Korea. Toss, which handles financial transactions for two-thirds of South Korea, partnered with Optimism to explore blockchain-based digital finance infrastructure. **Key features of Privacy Boost:** - Encrypts transfers and contract logic while maintaining transaction auditability for compliance - Supports pre-confirmations, enabling private transfers within one second - Provides institutions with privacy while allowing regulators to maintain oversight The three-month proof of concept will test whether the Won can settle onchain while meeting Korea's strict compliance, privacy, and control requirements. This represents a practical test case for **tokenized finance with built-in confidentiality** from the start. More details: [Cointelegraph coverage](https://cointelegraph.com/news/south-korea-toss-partners-optimism-won-stablecoins) | [Optimism blog](https://optimism.io/blog/two-thirds-of-south-korea-runs-its-money-through-toss-now-toss-is-exploring-putting-the-won)