The network uses pessimistic proofs via the AgglayerGateway for settlement on Ethereum, with vault bridges for cross-chain asset transfers.

Katana Network provides a scalable execution environment connected to Ethereum through the Agglayer interoperability layer.

Katana Network is a Layer 2 blockchain built on the Agglayer ecosystem.

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Blockchains (L2)

Katana

# Katana Network Median transaction fee Methodology

## 1. Overview

Median transaction fee measures the median fee paid across all transactions on Katana Chain. It shows what a typical user pays, without being skewed by very high or low values. This metric incorporates execution costs, L1 data availability costs, and Isthmus operator fees to provide a comprehensive view of transaction pricing.

## 2. Data sources

- **Blockchain events**: Transaction data from Katana Network
- **External data**: End-of-day price feeds for the native asset

## 3. Step-by-step calculation

### Component A: Katana Chain fee extraction

- **Purpose**: Identify the individual cost elements of a transaction
- **Logic**: Three distinct fee components are calculated for each transaction. The L2 gas fee is derived from `gas_used` and the effective `gas_price`. The L1 gas fee is captured from the `l1_fee` field or calculated using `l1_gas_used`, `l1_gas_price`, and the `l1_fee_scalar`. The Isthmus operator fee is calculated by adding the `operator_fee_constant` to a value derived from `gas_used` and the `operator_fee_scalar`. All components are normalized by decimal precision.
- **Key fields**: `gas_used`, `gas_price`, `l1_fee`, `l1_gas_used`, `l1_gas_price`, `l1_fee_scalar`, `operator_fee_constant`, and `operator_fee_scalar`

### Component B: Total fee aggregation

- **Purpose**: Combine components into a single transaction cost
- **Logic**: The L2 gas fee, L1 gas fee, and operator fee are summed to determine the total fee amount per transaction. This total represents the complete cost paid by the user for transaction processing and data availability.
- **Key fields**: `l2_gas_fee`, `l1_gas_fee`, and `operator_fee`

### Component C: Median calculation and USD conversion

- **Purpose**: Determine the daily median and normalize to USD
- **Logic**: The median fee is calculated by taking the 50th percentile of all transaction fees within a UTC day. This value is then multiplied by the end-of-day price of the native asset to arrive at the final USD-denominated metric.
- **Key fields**: `block_timestamp` (timing), `fee_amount` (fee quantities), and `token_address` (asset identification)

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

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Median transaction fee

Median transaction fee

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