Gnosis team is working on a new concept and an approach to bridges that could be beneficial for the Uniswap cross-chain governance.
It aligns with the Multi-bridge proposals by @modong and @Kydo but we want to focus on two aspects:
-
Additive security
Instead of choosing one security model over the other and making certain trade-offs, we can use more than one models and control each other’s integrity. -
Standardization (at the lowest level)
The lowest possible level for standardization which will decouple the overall architecture from the security model is the block header.
Putting the two concepts above together, we can have different bridges with different security approaches (e.g. ZK light client based, Committee based) that can provide the block header information of the source chain acting as Block Header Oracles.
- If all oracles (or all oracles above a certain threshold) agree, the block header is considered valid.
- In the case of conflicting oracle information, governance and an external conflict resolution mechanism need to resolve it.
On top of the block headers, we need merkle proofs for specific events or storage slots.
On top these proofs, we can build application logic, such as Uniswap Governance specific contracts.
We therefore clearly see three tiers in this new approach:
Application (top)
Proof (mid)
Block header (bottom)
(My account is not allowed to add media for some reason… Here there was supposed to be a diagram which you can find in the link below)
More information on the above in the following Etherearch post: (I cannot add links either for some reason… ethresear.ch /t/a-principled-approach-to-bridges/14725)
Status and Roadmap
The concept development is currently in an early stage but we plan to publish the first part (Header Storage) in the next weeks.
Although we are still in an early stage, we believe it would be beneficial for the community if this approach could be also considered in the assessment for potential future improvements in the cross-chain Uniswap Governance.
We are looking forward to hearing your feedback!