Transfer Flows

The main functionality of the bridge is to transfer tokens from a network to another. For example, a user can transfer tokens from Ethereum to MultiversX or from MultiversX to Ethereum. The following sections describe the transfer flows for both directions.

Ethereum to MultiversX

1. A user deposits the ERC20 tokens that they want to transfer to the MultiversX network on the Safe(1) contract.
2. The Safe(1) contract groups multiple deposits into batches.
3. After a certain period of time, each batch becomes final and is processed by the relayers.
4. The relayers propose, vote, and perform the transfer using the Bridge (4) contract with a consensus of 7/10 votes.
5. On the MultiversX network, the same amount of ESDT tokens are minted as were deposited on the Ethereum network.
6. The user receives the equivalent amount of ESDT tokens on their recipient address on the MultiversX network.

MultiversX to Ethereum

1. A user deposits the ESDT tokens that they want to transfer to the Ethereum network on the Safe(3) contract.
2. The Safe(3) contract groups multiple deposits into batches.
3. After a certain period of time, each batch becomes final and is processed by the relayers.
4. The relayers propose, vote, and perform the transfer using the Bridge (2) contract with a consensus of 7/10 votes.
5. The user receives the equivalent amount of ERC20 tokens on their recipient address on the Ethereum network.
6. On the MultiversX network, the ESDT tokens that were transferred are burned.