Here we report on the progress of the leading builders in the ZK Cross-Chain ecosystem, documenting recent significant releases, technical breakthroughs and general updates.
Featuring: @EspressoSys, @Orbiter_Finance, @PolyhedraZK, @union_build, @ZekoLabs, & @zkLink_Official.
Caff Nodes
@EspressoSys introduced 'Caff Nodes' to enhance crosschain composability by providing fast, secure state verification for rollups: https://medium.com/@espressosys/intro-to-caff-nodes-how-espresso-unlocks-crosschain-composability-6496aa2fd268
Built on the Espresso Network’s BFT consensus and scalable data availability, Caff Nodes confirm transactions within seconds rather than @ethereum’s 12-minute finality.
They let rollups, exchanges, bridges, and DeFi protocols act safely in near-real time, improving interoperability and efficiency across the multi-chain ecosystem while remaining Ethereum-compatible.
Integrations
Espresso has integrated with @ApeChainHUB, the blockchain developed by the @BoredApeYC community, to provide faster transaction finality and secure crosschain interoperability: https://medium.com/@espressosys/apechain-unlocks-crosschain-composability-with-espresso-6c8c4d0a6061
The collaboration enables near-instant confirmations, prevents sequencer manipulation, and allows real-time interaction with other networks.
Built on @arbitrum’s Nitro stack, ApeChain now finalizes transactions through Espresso, combining rapid performance with decentralized security for users and developers.
@Orbiter_Finance has announced two new integrations that expand its cross-chain ecosystem and enhance DeFi interoperability:
• @Nerochain_io: Became the official cross-chain bridge for NERO Chain - a high-performance, modular blockchain focused on scalability, security, and EVM compatibility. The integration enables seamless and secure asset transfers between NERO and other networks, strengthening its growing Web3 ecosystem: https://orbiter.finance/blog/zv1cepjmtbg9vbaoy6mo2tj1
• @SuperseedXYZ: Integrated with Superseed - an @ethereum L2 that makes DeFi more capital-efficient by using network fees to automatically repay user debt. The collaboration provides a faster, more reliable way for users to bridge assets into Superseed’s innovative, self-repaying ecosystem: https://orbiter.finance/blog/km7riqqjg9vemiqtz986etll
@PolyhedraZK reported progress on GPU and FPGA acceleration for its Expander system: https://x.com/PolyhedraZK/status/1981767727976247622
The team completed the full hardware implementation of the dual-phase prepare operator in the LinearGKR algorithm on FPGA, achieving RTL simulation.
They also resolved GPU efficiency issues by using FPGA, boosting bandwidth from 1 TB/s to 6 TB/s. Work continues on optimizing BN254 arithmetic pipeline depth for improved performance and resource use.
@union_build updated on progress since its Mainnet launch, outlining technical updates and integrations: https://x.com/union_build/status/1978502640331087875
Highlights include:
• Advanced access control management for CosmWasm
• @SuiNetwork / MoveSDK functionality
• Backend systems for @AuroBTC
• Research on attestation-based light clients for @solana and @HyperliquidX
• @monad integration and a new Rust version
• Dashboard stability improvements
• Active integrations with @SeiNetwork and @base, with @BNBCHAIN support pending
• Plans for additional EVM and possible Cosmos chains
zkRollup Bridge
@ZekoLabs has launched community testing for its zkRollup Bridge, connecting with @MinaProtocol: https://x.com/ZekoLabs/status/1978496515732598798
Participants can join the Zeko Discord to test the bridge, with upcoming stages including the 'Zeko Boom' testnet contest and a comprehensive end-to-end audit.
Partnerships
Zeko announced that Solis, the first zkDEX built by @gizmolab_ using @LuminaDEX, is now live on the Zeko Testnet and Mina devnet: https://x.com/ZekoLabs/status/1980687521848914333
The platform enables instant transaction confirmations and fast ZK-swaps, with a mainnet launch expected soon.
@zkLink_Official has partnered with @metyacom to integrate its L3 zkEVM aggregation with Metya’s PayFi and SocialFi ecosystem: https://x.com/zkLink_Official/status/1978734967250428326
The collaboration aims to enhance cross-chain payments by improving transaction speed, reducing fees, and simplifying multi-chain operations.
The initiative includes pilot integrations, technical scoping, and co-marketing to advance seamless, secure payment and social experiences across @ethereum L2 networks.
