About Rialto Bridge
Rialto Bridge Reimbursement Program (starting 9a PT on 3/22/22) to celebrate the launch, Findora Foundation will be allocating part of its m bridge reimbursement budget to reimburse users for any fees incurred when they first move assets into the Findora ecosystem via Rialto Bridge. (check Discord announcement for more details)
Rialto Bridge is a modular multi-directional blockchain bridge to allow data and value transfer between a number of blockchains. This should enable users to specify a destination blockchain from their source chain and send data to that blockchain for consumption on the destination chain.
Built on Chainsafe’s Chainbridge infrastructure, burnished and strengthened, it allows technologically different chains to communicate with each other, perform transactions against each other and settle balances at the end of a session. Let’s dive in.
At a high level, Rialto’s architecture involves a source chain, a destination chain, and relayers, with the first two having smart contracts that handle the heavy lifting involved with communication between the chains. The relayer in this matrix of communication handles the message sending and only that. When the request hits the destination chain, then the equivalent value of the coins are minted and they’re ready for use. There is more going on, let’s look at what this looks like at a lower level but first, connect your wallet.
- Client - Where the Deposit and Approver requests come from Source Chain - The beginning of a transaction
- Relayers - the message system for passing information from the source to the destination
- Destination Chain - the end chain of the transaction
- Bridge contract - The contract interacts with the client and the relayers. It receives calls from the client, and based on the type of call, delegates the locking or minting of the coin in the token contract through the Handler contract
- Token contract - This contract token itsef
- Handler contract - The contract that handles executing deposits or withdrawals
- The client makes two calls to the source chain, one to approve and the other to deposit. The approval hits the bridge contract, and when that is passed, the next port of call is the handler contract.
- This executes the deposit and then calls for the client to make the deposit into the token contract of the source chain
- Active - The proposal for getting assets minted on the destination chain is submitted
- Passed - Relayers overwhelmingly agree on proposal
- Executed - Destination chain mints equivalent value of incoming message request from source chain
- Cancelled - The proposal is declined
- After the deposit hits the token contract, a deposit event is triggered that passes the message to the relayer, and the relayer itself broadcasts this information to the bridge contract of the destination chain. Then a vote happens on the proposal.
- Voting on the destination chain means that relayers get the proposal and initiate a process where every one of them votes. With every vote from a relayer, the broadcast status moves through the different stages from active to executed.
- The executed stage is passed and finally the bridge calls the handler contract that eventually moves the data to the tToken for minting
The Rialto Bridge interface (https://rialtobridge.io/) is an open-source software portal to the Rialto Bridge protocol, a modular multi-directional messaging protocol. THIS INTERFACE AND THE RIALTO BRIDGE PROTOCOL ARE PROVIDED "AS IS", AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND. By using or accessing this Interface or Rialto, you agree that no developer or entity involved in creating, deploying, maintaining, operating this Interface or Rialto, or causing or supporting any of the foregoing, will be liable in any manner for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of, this Interface or Rialto, or this Interface or Rialto themselves, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value. By using or accessing this Interface, you represent that you are not subject to sanctions or otherwise designated on any list of prohibited or restricted parties or excluded or denied persons, including but not limited to the lists maintained by the United States Department of Treasury's Office of Foreign Assets Control, the United Nations Security Council, the European Union or its Member States, or any other government authority.