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

Arbitrum One is an L2 smart contract platform for decentralized applications on Ethereum. Arbitrum was founded by Offchain Labs and launched in 2021.

ARB tokenholders own and govern the protocol. They currently run the only sequencer and take a cut of the total transaction fees paid by users (revenue). Arbitrum’s investors include Polychain, Alameda Research, Coinbase Ventures, etc.

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Arbitrum One

# Arbitrum One Active users (daily) Methodology

## 1. Overview

Daily Active Users (DAU) for Arbitrum measures the number of unique addresses that initiated at least one transaction on the Arbitrum network within a 24-hour period. This metric provides insight into user engagement and network activity levels by counting distinct transaction senders per day. The calculation uses a simple but effective approach: any address that sends a transaction on a given day is considered an active user for that day.

## 2. Data sources

- **Arbitrum transaction records**: Complete transaction history from the Arbitrum blockchain including sender addresses, receiver addresses, transaction hashes, block timestamps, and gas usage data
- **Token metadata**: Arbitrum WETH token address reference for standardized gas fee calculations

## 3. Step-by-step calculation

### Component A: Transaction data extraction
- **Purpose**: Extract all Arbitrum transactions with their sender addresses and timing information
- **Logic**: Retrieves all transaction records from Arbitrum blockchain data, capturing the `from_address` (transaction sender), `block_timestamp`, transaction hash, and recipient address. Each transaction record represents a user action on the network. The data includes gas pricing and usage information, though this doesn't directly impact the DAU calculation
- **Key fields**: `from_address` (the unique user identifier), `block_timestamp` (for daily grouping), `transaction_hash` (unique transaction identifier)

### Component B: Daily user aggregation  
- **Purpose**: Group transactions by day and identify unique senders per day
- **Logic**: Transaction timestamps are truncated to daily boundaries using day-level granularity. Within each day, the calculation identifies all unique `from_address` values, treating each distinct sender address as one daily active user. The logic uses a SELECT DISTINCT operation to ensure each address is counted only once per day, regardless of how many transactions they sent
- **Key fields**: `timestamp` (truncated to day), `user_dau` (the unique sender address), `user_type` (labeled as 'Transaction sender')

### Final aggregation
- **Combining components**: The daily aggregation directly produces the final metric - no additional combination needed since each unique sender address per day represents one DAU
- **Currency conversion**: Not applicable for this user count metric
- **Time aggregation**: Daily boundaries are defined using timestamp truncation to day-level granularity, ensuring consistent 24-hour periods
- **Final calculation**: The final DAU value for each day equals the count of distinct `from_address` values that appear in transactions with `block_timestamp` values falling within that calendar day. Each unique sender address contributes exactly 1 to the daily active user count, regardless of their transaction volume or frequency within that day.

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

Unique revenue-generating users over a fixed 24-hour window.

Arbitrum OneARB

Active users (daily)

Active users (daily)

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