Mantle batches users' transactions and submits them to Ethereum, paying a share of the transaction fees to Ethereum validators (expense).

Mantle is an L2 smart contract platform for decentralized applications on Ethereum. Mantle was founded by Pascal Leblanc and launched in 2023.

MNT tokenholders own and govern the protocol. Mantle is mainly funded by BitDAO's treasury, other strategic investors include Pantera Capital, Spartan, Folius Ventures, etc.

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Mantle

# Mantle Bridge deposits Methodology

## 1. Overview

Bridge deposits measures the total USD value of assets held in Mantle's bridge smart contract on Ethereum. This metric tracks the funds that users have deposited to bridge assets from Ethereum to the Mantle Layer 2 network. The calculation focuses on a specific bridge contract address and aggregates the USD value of all tokens held in that address on a daily basis.

## 2. Data sources

- **Ethereum Transfer events**: Parsed `Transfer` events from ERC20 tokens and ETH transfers on the Ethereum blockchain
- **Token metadata**: Token contract information including decimal places, symbols, and token identifiers
- **End-of-day price feeds**: Daily USD price data for all tokens held in the bridge contract
- **Daily balance snapshots**: Historical balance data for tracking portfolio changes over time

## 3. Step-by-step calculation

### Component A: Bridge address identification
- **Purpose**: Identifies the specific Ethereum address that holds bridged assets for Mantle
- **Logic**: The calculation focuses on the Ethereum address `0x95fc37a27a2f68e3a647cdc081f0a89bb47c3012`, which serves as Mantle's bridge contract. This address receives tokens from users who want to bridge assets to the Mantle Layer 2 network
- **Key fields**: The `account_addresses` configuration specifies the bridge contract address to monitor

### Component B: Portfolio balance calculation
- **Purpose**: Calculates the daily token balances held in the bridge address
- **Logic**: The portfolio macro processes all `Transfer` events involving the bridge address. It tracks incoming transfers (when the bridge address is the recipient) and outgoing transfers (when the bridge address is the sender). For each token, it maintains a running balance by adding inflows and subtracting outflows. The calculation processes events chronologically to build accurate historical balances for each day
- **Key fields**: The `balance` field represents the net token amount held, calculated from `Transfer` event `value` amounts with proper decimal adjustments

### Component C: USD conversion
- **Purpose**: Converts all token balances to USD values for standardized measurement
- **Logic**: Each token balance is multiplied by the corresponding end-of-day USD price. The conversion accounts for token decimal places to ensure accurate value calculations. If price data is unavailable for a particular token on a specific date, the system applies appropriate fallback logic
- **Key fields**: The USD-converted `balance` represents the dollar value of each token holding

### Component D: Business metadata addition
- **Purpose**: Adds standardized business classification fields for reporting and analysis
- **Logic**: The calculation assigns consistent metadata including chain identifier (Ethereum), market sector (`blockchains_l2` indicating Layer 2 blockchain category), and business segment (`blockchain`). The product identifier is set to null as this metric applies broadly to the bridge functionality
- **Key fields**: `chain_id`, `market_sector_id`, `business_segment_id`, and `product_id` provide business context

### Final aggregation
- **Combining components**: All token balances for the bridge address are summed together on each day to create the total bridge deposits value
- **Currency conversion**: USD conversion happens at the individual token level before aggregation, using end-of-day pricing
- **Time aggregation**: The metric is calculated daily, with each day representing the total USD value of all assets held in the bridge contract at the end of that day
- **Final calculation**: The `bridge_deposits` value equals the sum of all USD-converted token balances held by the Mantle bridge address, providing a comprehensive measure of assets deposited for bridging to the Layer 2 network

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

Value of assets held in a project's bridge contracts.

MantleMNT

Bridge deposits

Bridge deposits

Competitive landscape

Chain breakdown