website

github

twitter

discord

Blockchains (L3)

ApeChain

# ApeChain Bridge deposits Methodology

## 1. Overview

Bridge deposits represents the total USD value of tokens held in ApeChain's bridge contract addresses on Arbitrum. This metric measures the amount of value that has been deposited into bridge contracts to facilitate cross-chain transfers to ApeChain, providing insight into the total value locked in ApeChain's bridging infrastructure. The calculation tracks token balances across specified bridge addresses and converts them to USD using end-of-day pricing.

## 2. Data sources

- **Arbitrum blockchain events**: Parsed `Transfer` events from ERC20 tokens to track token movements into and out of bridge addresses
- **Token balance data**: Daily snapshots of token balances held by specific bridge contract addresses on Arbitrum
- **Token metadata**: Token contract information including decimal places, symbols, and contract addresses for proper amount calculation
- **End-of-day price feeds**: Daily USD prices for tokens held in bridge addresses to enable value conversion
- **Chain availability data**: Operational status information for Arbitrum to filter out periods of chain downtime or data issues

## 3. Step-by-step calculation

### Component A: Bridge address identification
- **Purpose**: Identifies the specific contract addresses that serve as bridge deposit holders for ApeChain
- **Logic**: The model uses a hardcoded configuration specifying bridge contract addresses on Arbitrum. Currently tracks address `0x6b71afb4b7725227ab944c96fe018ab9dc0434b8` on Arbitrum as the primary bridge deposit address
- **Key fields**: `account_addresses` contains the bridge contract addresses to monitor

### Component B: Portfolio balance calculation
- **Purpose**: Calculates the total token balances held in bridge addresses using the portfolio calculation methodology
- **Logic**: The calculate_portfolio macro processes `Transfer` events for the specified bridge addresses to maintain running balance calculations. It tracks all ERC20 token transfers into and out of bridge addresses, maintains daily balance snapshots for each token, and handles decimal normalization using token metadata. The macro aggregates balances across all tokens held in bridge addresses
- **Key fields**: `balance` represents the USD value of tokens held, `timestamp` for daily time series, `chain` for blockchain identifier

### Component C: Business categorization
- **Purpose**: Adds business-relevant metadata to categorize the metric appropriately
- **Logic**: The metric is categorized with market sector as "blockchains_l3" since ApeChain is a Layer 3 blockchain, business segment as "blockchain" to indicate core blockchain infrastructure, and `product_id` is set to null as this represents overall bridge deposits rather than a specific product
- **Key fields**: `market_sector_id`, `business_segment_id`, `product_id` for business categorization

### Final aggregation
- **Combining components**: Token balances from the portfolio calculation are summed across all tokens held in bridge addresses to get total bridge deposits value
- **Currency conversion**: USD conversion is handled within the portfolio calculation using end-of-day token prices and proper decimal adjustment based on token metadata
- **Time aggregation**: Data is aggregated at daily grain with forward-fill strategy applied to handle missing data points and create continuous time series
- **Final calculation**: The final bridge deposits value represents the sum of USD values for all tokens held in ApeChain bridge contract addresses on Arbitrum, filtered by chain availability to ensure data quality during operational periods only

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

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

ApeChainAPE

Bridge deposits

Bridge deposits

Competitive landscape

Chain breakdown