The Sovereign
Interoperability Layer
By using consensus verification, Union builds unstoppable and decentralized connections to enable anyone to transfer assets and data.
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Trustless, decentralized, and permissionless interoperability is now possible. Union is the only protocol that provides all three, using state-of-the-art Zero-Knowledge cryptography.

Interoperability for the Modular Stack

Galois is the first interoperability proving layer that is so efficient that it allows anyone to generate proofs on a phone. Gone is the era of needing expensive cloud-clusters for ZK. Now we liberate ZK to be available to anyone.
Unmatched Scalability
contract DexPortal is IBCAppBase {
  function swap(
    address base,
    uint256 amount,
    uint256 minReturn,
    uint64 timeout
  ) public {
    Proxy quote = swapProxies[base];
    IERC20(base).transferFrom(
      _msgSender(),
      address(this),
      amount
    );
    ibcHandler.send(
      quote.port,
      quote.channel,
      timeout,
      abi.encode(
        Swap({
          origin: _msgSender(),
          amount: amount,
          minReturn: minReturn
        })
      )
    );
  }
}

Union is the only interoperability layer that solves the sovereign bridging trilemma.

Trustless: Union implements proper consensus-verification and does not compromise on IBC's security guarantees.

Decentralized: Through CometBLS' hyper-efficient prover, proofs can be generated by anyone rather than relying on large institutions.

Permissionless: Union's infrastructure allows for anyone to set up sovereign connections to new networks.

Galois

Decentralized proving for everyone. Galois, a key component of Union's ZK efforts, ensures proof verification with lightning-fast execution, cost-efficient operation, and decentralized infrastructure.

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CometBLS

ZK-aligned consensus engine. CometBLS is an enhancement upon Tendermint which utilizes BLS signatures for efficient ZK proving, and thereby ensuring secure bridging and consensus verification.

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Voyager

Stateless relaying for a cross-chain future. Voyager is our in-house relayer, allowing us to support new networks without waiting for up-stream support, by seamlessly integrating with Galois.

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The most efficient interoperability layer.

CometBLS V3
ZkMint
TendermintX
Fraud-proof bridges
60x
faster