# Active users (monthly) Methodology

## 1. Overview

Active users (monthly) measures the number of unique addresses that make a revenue-generating transaction with Fathom DEX. This metric provides an assessment of monthly engagement and user growth for the protocol's automated market maker infrastructure. Only addresses that successfully initiate trades are counted, with activity measured over 30-day rolling windows.

## 2. Data sources

- **Blockchain events**: `Swap` events from `Pair` contracts and blockchain transaction data on XDC
- **External data**: Asset metadata for address identification

## 3. Step-by-step calculation

### Component A: Trade activity extraction

- **Purpose**: Identify user addresses associated with exchange transactions.
- **Logic**: `Swap` events are parsed from `Pair` contracts. These events are joined with the corresponding blockchain transaction data using the transaction hash to identify the originating signer address.
- **Key fields**: `block_timestamp` (timing), `transaction_hash` (unique identifier), `from_address` (user identification)

### Component B: Monthly address deduplication

- **Purpose**: Calculate the count of unique participants per 30-day window.
- **Logic**: All identified user addresses are aggregated by 30-day window. Duplicate addresses within the same 30-day rolling window are removed to ensure each user is counted only once per 30-day window regardless of the number of transactions performed.
- **Key fields**: `user_address` (deduplication target), `timestamp` (monthly grouping)

### Component C: Final aggregation

- **Purpose**: Generate the monthly metric value.
- **Logic**: The total count of distinct addresses is summed for each 30-day window and categorized under the Fathom DEX product identifier. Values are filtered according to chain availability and data freshness standards.

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

Unique revenue-generating users over a rolling 30-day window.

Active users (monthly)

Exchanges (DEX)