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Mubarak @MubarakHM17 on x 1600 followers
Created: 2025-07-26 08:28:41 UTC
The Union Protocol is more than just another IBC implementation. It builds on IBC foundation but introduces meaningful upgrades for developers: better flexibility, faster performance, and modular design all while maintaining the same strong security guarantees.
At its core, @union_build shifts away from the single connection per chain model Instead, it separates connections and channels, allowing each to serve distinct roles:
Connections define the finality and security assumptions between chains (e.g., soft vs hard finality on Arbitrum).
Channels define the messaging layer asset transfers, intents, NFT payloads, etc.
This separation gives developers far more control and flexibility.
Another key innovation is the support for both direct and recursive connections.
Direct connections are simple, single-hop links (e.g., from Scroll to Arbitrum).
Recursive connections are more powerful, allowing multi-hop routing using statelenses, enabling composability across many chains.
What’s powerful here is that all of this complexity is abstracted away. To the end user or onchain protocol, a connection just looks like a socket you don’t need to worry about the internals.
@union_build also supports versioned channels, which means different messaging protocols can coexist. For example:
ucs03-zkgm-0 supports intents, NFTs, assets, and more
ics20-1 is optimized for simple asset transfers
Both channel types are connection-agnostic meaning they work regardless of whether the underlying connection is direct or recursive.
Bottom line: Union is built with modularity and extensibility in mind. It gives developers a clean, secure, and highly flexible interoperability layer one that fits modern cross-chain applications, without asking you to compromise on design, performance, or future-proofing.
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