Deep Dive
1. Universal ZK Verification (21 July 2025)
Overview: Across V4 introduced zero-knowledge proofs (ZKPs) to verify Ethereum state changes on non-EVM chains like Solana, eliminating the need for custom adapters.
The upgrade uses ZK proofs to confirm relayer repayments via Ethereum’s finalized blocks. A “finalizer” service generates proofs that message hashes were written to Ethereum’s HubPoolStore, enabling universal verification across chains. This reduces integration complexity and centralization risks.
What this means: This is bullish for ACX because it allows seamless expansion to new blockchains (like BSC and Solana), increasing utility and user adoption. Faster, cheaper bridging across ecosystems could drive volume growth. (Source)
2. Solana Integration (20 August 2025)
Overview: Across launched Solana bridging, leveraging its intent-based system for fast, low-cost transfers between Ethereum and Solana.
The integration uses Across’ relayers and UMA’s Optimistic Oracle for instant finality. Users specify intents (e.g., “Send 1 ETH to Solana”), and relayers compete to fulfill them, bypassing Solana’s non-EVM limitations via ZK proofs.
What this means: This is bullish for ACX because Solana’s high-throughput DeFi ecosystem adds a major revenue stream. Bridging to Solana positions Across as a leader in cross-chain interoperability. (Source)
3. V4 PancakeSwap Deployment (7 July 2025)
Overview: Across V4 went live on PancakeSwap, enabling crosschain swaps between BNB Chain, Arbitrum, and Base without external bridges.
The update uses Across’ intent-driven architecture to route swaps through liquidity pools on Ethereum. Relay times average under 1 minute, with fees below 0.1%.
What this means: This is bullish for ACX because PancakeSwap’s large user base drives volume and fee revenue. Simplified crosschain swaps could increase ACX’s role in DeFi’s multi-chain future. (Source)
Conclusion
Across Protocol’s codebase upgrades focus on interoperability (Solana), scalability (ZKPs), and user experience (PancakeSwap). These updates align with growing demand for fast, low-cost crosschain solutions during altseason. How will ACX capitalize on its technical edge as more chains adopt intents-based bridging?