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Blockchains (L2)

Lisk

# Lisk Bridge deposits Methodology

## 1. Overview

The Lisk bridge deposits metric measures the total USD value of cryptocurrency assets held in Lisk's bridge smart contracts on Ethereum. This metric represents the total value locked (TVL) that has been deposited into Lisk's bridging infrastructure, indicating the economic activity and trust in Lisk's layer 2 solution. The calculation tracks token balances across specific Ethereum addresses identified as Lisk bridge contracts and converts them to USD values for standardized reporting.

## 2. Data sources

The methodology relies on several key data sources:

- **Ethereum blockchain transaction logs**: Complete transaction history for the identified bridge contract addresses
- **Ethereum ERC20 token transfer events**: Parsed `Transfer` events showing token movements in and out of bridge addresses  
- **Ethereum account balance snapshots**: Historical balance states for ETH and ERC20 tokens at bridge addresses
- **End-of-day token price feeds**: USD price data for all tokens held in bridge contracts
- **Token metadata**: Contract addresses, decimals, symbols, and other identifying information for supported tokens
- **Chain availability status data**: Data quality indicators showing periods of complete vs. incomplete blockchain data coverage

## 3. Step-by-step calculation

### Component A: Bridge address identification
- **Purpose**: Define the specific Ethereum addresses that serve as Lisk's bridge contracts
- **Logic**: Two hardcoded Ethereum addresses are identified as the official Lisk bridge contracts: `0x26db93f8b8b4f7016240af62f7730979d353f9a7` and `0x2658723bf70c7667de6b25f99fcce13a16d25d08`. These addresses represent the smart contracts that hold deposited assets before they are bridged to the Lisk network
- **Key fields**: `account_addresses` containing the bridge contract addresses, `chain` identifier set to ethereum

### Component B: Portfolio balance calculation
- **Purpose**: Calculate the total token balances held across all bridge addresses over time
- **Logic**: The portfolio calculation processes historical blockchain data to determine token balances at each bridge address. This involves analyzing all `Transfer` events where tokens moved into or out of the bridge addresses, tracking ETH balance changes through transaction traces, maintaining running balances for each token type, and creating daily snapshots of total holdings. The calculation accounts for all ERC20 tokens and native ETH held by the bridge contracts
- **Key fields**: `timestamp` for daily snapshots, `balance` representing token quantities, `chain` identifier, token contract addresses and symbols

### Component C: Business metadata application  
- **Purpose**: Add categorical information for reporting and analysis purposes
- **Logic**: Business-relevant metadata is applied to classify the bridge deposits within Token Terminal's taxonomy. Each record receives a `market_sector_id` of 'blockchains_l2' to categorize Lisk as a layer 2 solution, a `business_segment_id` of 'blockchain' to identify this as blockchain infrastructure, and no specific `product_id` since bridge deposits represent the core protocol function rather than a distinct product offering
- **Key fields**: `market_sector_id`, `business_segment_id`, `product_id` (set to null), `bridge_deposits` containing aggregated balance values

### Final aggregation
- **Combining components**: Token balances from all bridge addresses are summed together for each timestamp, creating a single aggregate value representing total bridge deposits. All supported tokens (ERC20 and ETH) are included in this summation
- **Currency conversion**: The finalize metric macro converts all token balances to USD using end-of-day price feeds. Each token balance is multiplied by its corresponding USD price, with proper decimal adjustment based on token contract specifications
- **Time aggregation**: Data is organized into daily time boundaries, with the `timestamp_grain` field indicating the aggregation level. Forward-filling logic is applied to handle missing data points, ensuring continuous time series data
- **Final calculation**: The final `bridge_deposits` value represents the total USD value of all cryptocurrency assets held across Lisk's bridge contracts on any given day. This includes ETH, stablecoins, and other ERC20 tokens that users have deposited for bridging to the Lisk network. A data quality filter removes periods where chain data availability was insufficient, ensuring only reliable measurements are included in the final metric

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

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

LiskLSK

Bridge deposits

Bridge deposits

Competitive landscape

Chain breakdown