L1 Data Availability Cost

Cost

L1 data availability cost represents the expense associated with publishing transaction data from Layer 2 rollups onto the Layer 1 blockchain. This cost is a critical component of the overall transaction fee structure for L2 solutions, as it ensures that the data required to verify the state transitions of the rollup is publicly accessible and secure. The cost is primarily determined by the L1 network’s gas price and the amount of data being posted in each batch.