Vea

Vea is a cross-chain message bridge which enables fast and secure interoperability specifically designed with optimistic rollups in mind. Vea specifically solves an unmet need of bridging authenticated data, which no other 3rd party bridge supports.

Whitepaper

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What is Vea

Vea is a fast and secure bridging protocol which uses a hybrid strategy where a message is optimistically verified.

Vea enables cross-chain authenticated data transfer with faster latency than native bridges. A smart contract on chain A can query an oracle on chain B and receive the oracle response cheaper and sometimes faster than using native bridges. This opens a new possibility of high volume, low-value cross-chain interoperability (cross-chain oracle queries, NFT transfer, governance).

Vea is a 1-of-N security model, meaning only 1 honest participant can force the correct bridge execution. More importantly, Vea is a permissionless protocol, meaning you can make sure you are the one honest participant in the protocol. The contracts are immutable, with no governance nor multisig upgradability risk.

Vea can connect any L1, L2, L3... etc which settle to Ethereum, including ZK rollups. However, when interoperating with optimistic rollups, there are no added trust assumptions since optimistic rollups use the same trust model as Vea. For this reason, Vea is particularly well suited for optimistic rollup interoperability. Vea can even pass messages between ZK rollups and optimistic rollups without any extra trust assumptions, because to interoperate with an optimistic rollup already accepts a 1 of N security assumption for the optimistic rollup state verification.