X Layer's Pessimistic Proofs Upgrade Boosts Transaction Speed to 5,000 TPS via Polygon AggLayer Partnership

X Layer, the zkEVM-based public network developed by OKX in collaboration with Polygon, officially implemented its Pessimistic Proofs (PP) upgrade on August 5, 2025. This significant technical enhancement, stemming from its partnership with Polygon and AggLayer, promises substantially faster transactions, improved reliability, and a more seamless development experience, positioning X Layer as a "New Money Chain."

The Pessimistic Proofs technology, a core component of Polygon's Chain Development Kit (CDK), utilizes zero-knowledge proofs to validate cross-chain bridge transitions and ensure the proper collateralization of withdrawals. This mechanism provides a trustless and secure framework for interoperability, enhancing X Layer's security and its alignment with the broader Ethereum mainnet.

Following the upgrade, X Layer's transaction throughput has reportedly increased to 5,000 transactions per second (TPS), with gas costs reduced to a negligible level. This performance boost is intrinsically linked to its integration with Polygon's AggLayer, which aims to unify liquidity and user experience across disparate blockchain networks by aggregating ZK proofs of chain states.

The upgrade aligns with X Layer's strategic focus on decentralized finance (DeFi), global payments, and real-world asset (RWA) applications. OKX has emphasized its commitment to X Layer by announcing the gradual decommissioning of OKTChain, consolidating resources on X Layer as its primary public network, with OKB continuing as the native gas token.

The X Layer team announced the milestone, stating in a tweet, "> X Layer's PP upgrade is live thanks to our partnership with @Polygon and @AggLayer! Faster transactions. Better reliability. Seamless development experience. Ready to build on the #NewMoneyChain?". This development is a key step within Polygon's ambitious Gigagas roadmap, which targets a future throughput of 100,000 TPS, underscoring a vision for highly scalable and interconnected blockchain infrastructure.