Loopring

Overview

Loopring is a decentralized exchange and payment protocol that operates on Ethereum and its own Layer 2 solution, Loopring L2. Loopring L2 is a ZK rollup that posts batches of transactions to Ethereum with zk-SNARK proofs. The Loopring Dune query can be found here.

Query Structure

The query filters successful transactions sent to the LoopringIOExchangeOwner contract that call the submitBlocksWithCallbacks function.

Calculations

• The proof volume is the sum of successful submitBlocksWithCallbacks function calls

• The cost is calculated using the following formula:

  • $\text{cost} = \sum_{\text{traces}} \left( \text{gas\_used} \times \text{gas\_price} \times \text{eth\_price} \right)$

  • Where:

    • $\text{gas\_used}$ is the amount of gas consumed by a trace in one of the verifiers

    • $\text{gas\_price}$ is the price of gas on the day of the transaction

    • $\text{eth\_price}$ is the average price of ETH in USD on the day of the transaction