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Blockchains (L2)

Boba Network

# Boba Network Median transaction fee Methodology

## 1. Overview

The Boba Network transaction fee median metric measures the middle value of transaction fees paid on the Boba Network Layer 2 blockchain on a daily basis, expressed in USD. This metric provides insight into typical transaction costs for users and helps track network fee trends over time. The calculation accounts for Boba Network's dual-fee structure, which includes both Layer 2 execution fees and Layer 1 data availability fees, reflecting the true cost of transacting on this optimistic rollup.

## 2. Data sources

- **Boba Network transaction records**: Complete transaction data including gas usage, gas prices, and Layer 1 fee components from the Boba Network blockchain
- **End-of-day token price feeds**: Daily ETH price data for USD conversion, since Boba Network uses ETH as its native gas token
- **Token metadata**: ETH token information including decimal precision and symbol data for proper currency handling

## 3. Step-by-step calculation

### Component A: Transaction data extraction
- **Purpose**: Extract and standardize raw transaction data from Boba Network
- **Logic**: Pull transaction records including timestamps, transaction hashes, addresses, and all gas-related fields. Cast fields to appropriate data types for calculation. Set the native token as ETH with the standard ETH contract address since Boba Network uses ETH for gas payments.
- **Key fields**: `block_timestamp`, `transaction_hash`, `gas_used`, `gas_price`, `l1_gas_used`, `l1_gas_price`, `l1_fee_scalar`

### Component B: Fee calculation and median aggregation
- **Purpose**: Calculate individual transaction fees and determine daily median values
- **Logic**: For each transaction, calculate the total fee by combining two components: Layer 2 execution fee (`gas_used` × `gas_price` ÷ 1e18) and Layer 1 data availability fee (`l1_gas_used` × `l1_gas_price` × `l1_fee_scalar` ÷ 1e18). The division by 1e18 converts Wei amounts to ETH. Group transactions by day using timestamp truncation. Calculate the median fee for each day using approximate quantiles at the 50th percentile. Handle null values by defaulting to zero for missing fee components.
- **Key fields**: `fee_amount` (calculated composite fee), `timestamp` (daily truncated), `transaction_fee_median`

### Final aggregation
- **Combining components**: The daily median transaction fees from Component B are passed forward as the core metric value
- **Currency conversion**: Convert median fee values from ETH to USD using end-of-day ETH price feeds, applying the standard Token Terminal price conversion methodology
- **Time aggregation**: Data is aggregated at daily boundaries using timestamp truncation to the day level
- **Final calculation**: The final metric value represents the 50th percentile (median) of all transaction fees paid on Boba Network for each day, expressed in USD, with standardized formatting and gap-filling applied for consistent time series data

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

Boba NetworkBOBA

Median transaction fee

Median transaction fee

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