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Infrastructure

World Mobile Chain

# World Mobile Chain Expenses Methodology

## 1. Overview

WorldMobileChain expenses represents the total daily operating costs for running the WorldMobileChain Layer 2 network. This metric combines two main expense categories: cost of revenue (infrastructure and operational costs) and token incentives (staking rewards paid to network participants). The calculation captures both the direct costs of maintaining the L2 infrastructure and the token rewards distributed to sustain network security and participation.

## 2. Data sources

The calculation utilizes several key data sources:

- **Base blockchain transaction records**: Transaction data from Base chain to identify L1 settlement costs paid by the WorldMobileChain sequencer
- **WorldMobileChain transaction records**: All transactions on the WorldMobileChain network to calculate operational fee sharing costs
- **WorldMobileChain staking data**: Epoch-based reward distribution data from both Base and Cardano staking mechanisms
- **End-of-day token price feeds**: USD conversion rates for ETH and WMTX tokens
- **Token metadata**: Decimal precision information for proper amount calculations

## 3. Step-by-step calculation

### Component A: L1 settlement fees
- **Purpose**: Calculate the gas costs WorldMobileChain pays to Base chain for L1 data settlement
- **Logic**: Identify transactions sent to the WorldMobileChain sequencer address (`0x3ba9426acc831cdda0dd0b537f6b4e98670bf280`) on Base chain. For each transaction, calculate the total gas cost including both L2 execution costs (`receipt_gas_used` × `receipt_effective_gas_price`) and L1 data availability costs (`receipt_l1_gas_used` × `receipt_l1_gas_price`). Convert the wei amounts to ETH by dividing by 10^18. Aggregate these settlement costs by day.
- **Key fields**: `block_timestamp`, `transaction_hash`, `gas_used_amount`, `gas_price`, `l1_gas_used_amount`, `l1_gas_price`, `l1_settlement_amount`

### Component B: Rollup operational fees  
- **Purpose**: Calculate the portion of WorldMobileChain transaction fees paid to infrastructure providers
- **Logic**: Process all WorldMobileChain transactions and calculate total gas fees (L1 + L2 components). Apply a 20% fee sharing rate to represent the portion paid to Arbitrum Orbit, World Mobile, and Alchemy for infrastructure services. The L2 gas fee is calculated as (`gas_used` × `gas_price`) ÷ 10^18, and the L1 gas fee as (`l1_gas_used` × `l1_gas_price` × `l1_fee_scalar`) ÷ 10^18. Sum both components and multiply by 0.2 to get the operational cost portion.
- **Key fields**: `block_timestamp`, `gas_used`, `gas_price`, `l1_gas_used`, `l1_gas_price`, `l1_fee_scalar`, `l2_gas_fee`, `l1_gas_fee`

### Component C: WMTX staking rewards
- **Purpose**: Calculate token incentives distributed to stakers on both Base and Cardano networks
- **Logic**: Extract staking reward data from two sources: Base staking epochs (using `available_rewards` field) and Cardano staking epochs (using `rewards` field). Both reward streams use the WMTX token address (`0x3e31966d4f81c72d2a55310a6365a56a4393e98d`) and are distributed at epoch boundaries. Apply decimal corrections for proper token amount representation and aggregate rewards by day.
- **Key fields**: `epoch`, `timestamp`, `available_rewards`, `rewards`, `token_address`, `token_incentives`

### Final aggregation
- **Combining components**: The L1 settlement fees and rollup operational fees are combined as `cost_of_revenue`, while staking rewards form the `token_incentives` component. Both expense categories are unioned together with consistent schema including `timestamp`, `chain_id`, and expense amounts.
- **Currency conversion**: All amounts are converted to USD using end-of-day price feeds. ETH-denominated fees use ETH prices, while WMTX rewards use WMTX token prices. The conversion applies appropriate decimal corrections based on token specifications.
- **Time aggregation**: Daily aggregation is performed using `timestamp_trunc` to day level, with all timestamps normalized to day boundaries for consistent reporting.
- **Final calculation**: Total daily expenses equals the sum of cost of revenue (L1 settlement fees + rollup operational fees) plus token incentives (WMTX staking rewards from Base + Cardano), all converted to USD. The metric uses a fill-zeros strategy to ensure continuous daily values and applies chain availability filtering for consistent reporting across the WorldMobileChain ecosystem.

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

Total project operating and incentive expenses.

World Mobile ChainWMTX

Expenses

Expenses

Competitive landscape

Chain breakdown