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Infrastructure

World Mobile Chain

# World Mobile Chain Cost of revenue Methodology

## 1. Overview

The WorldMobileChain cost of revenue metric measures the total operational costs incurred by the protocol to provide its services. This includes L1 settlement fees paid to secure transactions on the Base blockchain, infrastructure revenue sharing with service providers (Arbitrum Orbit, World Mobile, and Alchemy), and token buybacks used to reward EarthNode operators. The metric combines these three cost streams to provide a comprehensive view of the protocol's operational expenses.

## 2. Data sources

- **Base chain transactions**: Transaction records from Base blockchain to track sequencer activity and associated gas costs
- **WorldMobileChain transactions**: Transaction data from the WorldMobileChain network including L1 and L2 gas fee components
- **Ethereum token transfers**: Parsed `Transfer` events on Ethereum blockchain filtered by the buyback contract address to track EarthNode operator payments
- **Token metadata**: Token information including decimals and symbols for proper amount normalization
- **End-of-day price feeds**: Token price data for USD conversion of all cost components

## 3. Step-by-step calculation

### Component A: L1 settlement fees
- **Purpose**: Calculates the cost of settling WorldMobileChain transactions on the Base blockchain through the sequencer
- **Logic**: Identifies all transactions sent to the sequencer address (`0x3ba9426acc831cdda0dd0b537f6b4e98670bf280`) on Base chain. For each transaction, calculates the total gas cost by combining L2 execution costs (`gas_used` × `gas_price`) and L1 data availability costs (`l1_gas_used` × `l1_gas_price`). Normalizes amounts by dividing by 10^18 to convert from wei to ETH. Aggregates these costs daily by summing all settlement amounts.
- **Key fields**: `block_timestamp` for daily grouping, `gas_used_amount` and `gas_price` for L2 costs, `l1_gas_used_amount` and `l1_gas_price` for L1 costs, `l1_settlement_amount` as the final calculated cost

### Component B: Infrastructure revenue sharing
- **Purpose**: Calculates the portion of gas fees paid to infrastructure providers (Arbitrum Orbit, World Mobile, and Alchemy)
- **Logic**: Processes all WorldMobileChain transactions to calculate both L2 gas fees (`gas_used` × `gas_price` ÷ 1e18) and L1 gas fees (`l1_gas_used` × `l1_gas_price` × `l1_fee_scalar` ÷ 1e18). Takes 20% of the combined gas fees as the revenue share paid to infrastructure providers. Groups transactions by day using timestamp truncation.
- **Key fields**: `gas_used` and `gas_price` for L2 fees, `l1_gas_used`, `l1_gas_price`, and `l1_fee_scalar` for L1 fees, with final `cost_of_revenue` calculated as 20% of total fees

### Component C: EarthNode operator buybacks
- **Purpose**: Tracks token buybacks used to reward EarthNode operators for their network participation
- **Logic**: Monitors incoming token transfers to the buyback address (`0x0b6e6e040db8b03bfd82ec7b1b2f9a23a03ad8e3`) on Ethereum. Joins transfer events with token metadata to obtain proper decimals and symbols. Normalizes token amounts by dividing the raw `value` by 10^decimals to get the actual token quantity. Groups transfers by day using timestamp truncation.
- **Key fields**: `to_address` filtered to buyback address, `value` for raw token amounts, `decimals` for normalization, `amount` as the final normalized token quantity

### Final aggregation
- **Combining components**: Uses UNION ALL to combine all three cost components (settlement fees, infrastructure fees, and buybacks) into a single dataset with consistent schema including `timestamp`, `chain_id`, `token_address`, and `cost_of_revenue` fields
- **Currency conversion**: Applies the `convert_to_usd_and_correct_decimals` macro to convert all cost amounts to USD using end-of-day price feeds, with decimal correction disabled since amounts are already normalized
- **Chain recasting**: Changes the `chain_id` from the original chains (base, ethereum) to 'worldmobilechain' for unified reporting under the protocol's metrics
- **Final calculation**: Applies the `finalize_metric_cost_of_revenue` macro with 'fill_zeros' strategy to ensure complete daily coverage, validate data integrity, and handle any gaps in the time series. The final metric represents the total daily cost of revenue in USD across all operational cost categories.

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

Expenses paid to third parties to deliver core service output.

World Mobile ChainWMTX

Cost of revenue

Cost of revenue

Competitive landscape

Chain breakdown