Yet Another Bridge (YAB) is the cheapest, fastest and most secure bridge solution from Starknet to Ethereum.
Bridges are generally insecure and economically inefficient. They exhibit an asymmetry between users and bridge operators, where users can easily lose funds. What we propose different from other solutions is a bridge design that is simple, modular, and utilizes multi-storage proofs and the native messaging system between Ethereum and Layer 2 networks (L2s) as a fallback mechanism.
From the user's perspective, the bridging is completed in less than 30 seconds, or as little time it takes for the market maker to observe the user's deposit and execute a transfer.
From the market maker’s perspective, they will be able to receive back the money after paying the user and sending a message using the native messaging system. It takes less than 30 seconds, due to the time it takes to make a transaction in Ethereum and the L2’s sequencer receiving the message.
Storage proofs are also implemented but they are not in use because they are useful to scale and bridge from multiple L2 chains. This normally takes between 5 and 15 minutes.
The base cost of YAB is similar to an ERC20 transfer plus the cost of proving the state of the L1 and L2. Therefore, the bridge's final cost would be approximately $15.
Currently, Starknet is the only supported chain.
We are working on integrating ZkSync in the near future, so stay tuned for further updates!
You can contact us in: