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
@0xPolygon's @Agglayer v0.2 mainnet is live, introducing pessimistic proof, a ZKP ensuring cross-chain security. This upgrade enables chains with different security models to unify on a single @ethereum-connected bridge. Now, even non-zk chains can join safely. The next step is multi-stack capability, making Agglayer truly chain-agnostic: https://x.com/Agglayer/status/1886439865295765589…
A roadmap about the upcoming v0.3 & v0.4 was also presented: https://x.com/Agglayer/status/1886522585669919192…
They also launched an educational series, exploring key concepts and technical details behind the technology of Agglayer. The first session, "What is Settlement in the Era of Interoperability?", featured in-depth discussions and live coding to bring these ideas to life: https://x.com/Agglayer/status/1884995735847903606
@EspressoSys has integrated with @RariChain, an @arbitrum Orbit L3, to provide fast, secure confirmations and boost cross-chain NFT interoperability. Espresso’s BFT-backed finality eliminates reliance on centralized sequencers, reducing settlement times from 10+ minutes to seconds. This integration, supported by @Calderaxyz, sets the stage for seamless cross-chain NFT trading and bridging, unlocking new possibilities for @ethereum’s ecosystem: https://medium.com/@espressosys/espresso-and-caldera-building-infrastructure-for-cross-chain-composability-fb68f73ed21a
@union_build has integrated with @babylonlabs_io, enabling seamless cross-chain asset transfers and LST interoperability. Using ZK cryptography, Union ensures secure, fast transactions with sub-second transfer times and trustless consensus verification. This integration is live on Testnet 9, with public testing launching soon: https://union.build/blog/union-adds-babylon-chain
@PolyhedraZK launched Expander v1.0.0, featuring Virgo++ implementation, Orion PCS support, and fixes for Fiat-Shamir transform issues, and also launched a $500,000 bug bounty to identify any vulnerabilities Expander. The program focuses on security and reliability, covering Expander’s core components and associated libraries. Submissions must include detailed reproduction steps and comply with disclosure rules. Reports can be submitted via Google Form, and eligible discoveries may receive rewards based on severity and impact: https://blog.polyhedra.network/expander-bug-bounty/
@Orbiter_Finance launched $OBT, its ERC-20 governance and utility token. Over three years, the project gained 4.3M users, processed $28B, and completed 35M transactions. $OBT (10B supply) is available on @ethereum, @arbitrum, and @base:
@Gasp_xyz introduced a DeFi Application-Specific Rollup, designed for seamless omnichain connectivity and gas-free cross-chain swaps without bridges. Secured by @eigenlayer, it ensures L1-grade security, decentralized sequencing, and escape hatches for asset withdrawals. Its MEV-minimizing Themis architecture, Proof-of-Liquidity model, and time-based LP incentives enhance efficiency. Gasp unifies liquidity across blockchains, eliminating fragmentation for a trust-minimized DeFi ecosystem: https://cdn.prod.website-files.com/6607ffbc379bc260c51c9ff3/679ba11127842bdba06766db_20b4c40c56936856707cc9692c1afabf_Gasp_%20A%20DeFi%20Application%20Specific%20Rollup%20as%20a%20Consolidation%20Layer%20for%20All%20Assets%20(2).pdf
@zkLink_Official has partnered with @symbioticfi to strengthen cross-chain security using a decentralized risk management system. ZKL stakers can now halt suspicious activity, preventing unauthorized transfers via a lightweight PoS mechanism. This integration also optimizes settlements, enabling near-instant withdrawals after ZKP verification: https://x.com/zkLink_Official/status/1887028388269092995
@hyperbridge is now integrated with @soneium mainnet, enabling seamless and secure transactions across multiple supported chains. This connectivity expands possibilities for Sonieum users, empowering them to explore new opportunities and unleash their creativity in a broader blockchain ecosystem: https://x.com/hyperbridge/status/1886414441471770752…
In addition, Hyperbridge has successfully executed its first cross-chain governance action, updating its consensus client across all connected EVM chains. This upgrade improves finality speed, reducing time-to-finality by 90 seconds: https://x.com/hyperbridge/status/1882415307379130476
