**[Avail Launches Nexus Mainnet to Build a Unified Multi-Chain Liquidity Execution Layer]** BlockBeats News, November 27, as reported by The Block, modular blockchain Avail has launched the cross-chain execution layer Nexus Mainnet, aiming to integrate Rollups, application chains, and decentralized applications into a unified operating environment, enabling seamless asset, liquidity, and user flow across chains. Nexus now covers ecosystems including Ethereum, Tron, Polygon, Base, Arbitrum, Optimism, BNB Chain, Monad, Kaia, HyperEVM, and Scroll, with Solana integration coming soon. Additionally, Avail announced plans to introduce a unified verification solution, enabling cross-chain operations to rely on verifiable data through Avail DA rather than independent verification by individual chains.