# Active users (daily) Methodology

## 1. Overview

Active users (daily) measures the number of unique addresses that initiate revenue-generating transactions on Polkadot BridgeHub. This metric serves as an indicator of user engagement with Polkadot’s cross-chain bridging infrastructure. Every transaction signed and submitted to the network as an extrinsic is considered in this measurement to identify active participants within a fixed 24-hour window.

## 2. Data sources

- **Blockchain events**: `extrinsics` from Polkadot BridgeHub

## 3. Step-by-step calculation

### Component A: Polkadot BridgeHub extrinsic extraction

- **Purpose**: Identify transaction signers on the Polkadot BridgeHub chain.
- **Logic**: Extrinsics are retrieved from the Polkadot BridgeHub chain records. The identifier for the transaction sender is extracted and cast as the user address. Each entry is associated with a specific block timestamp and a unique transaction hash to facilitate daily aggregation.
- **Key fields**: `block_timestamp`, `user_address` (derived from the extrinsic sender), and `transaction_hash`.

### Component B: Daily aggregation and deduplication

- **Purpose**: Calculate the number of unique active users per day.
- **Logic**: User addresses are grouped by daily granularity using UTC day boundaries. Within each 24-hour period, unique addresses are identified to ensure that each user is counted only once per day regardless of the number of extrinsics submitted. The final count represents the active users (daily) for the product.

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

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

Active users (daily)

Blockchains (L2)

Network participants process transactions and receive fees from users (supply-side fees).

Polkadot is a security & interoperability platform for blockchains and applications. Polkadot was founded by Gavin Wood and launched in 2020.

DOT holders own and govern the protocol. They currently take a cut of the total transaction fees paid by users (revenue). Polkadot’s investors include Polychain, IOSG Ventures, Hashkey, etc.

Polkadot BridgeHub

Active users (daily)

Active users (daily)

Chain breakdown