# Astar Substrate Contract deployers Methodology

## 1. Overview

Contract deployers measures the number of unique addresses that have successfully deployed at least one smart contract on Astar Substrate. This metric serves as a primary proxy for the size of the active developer ecosystem and the number of independent entities publishing code onchain. By tracking the unique signers behind contract creation events, the growth and retention of the developer base is quantified.

## 2. Data sources

- **Blockchain events**: `NewAccount` events from the `system` pallet and `Executed` events from the `ethereum` pallet on Astar Substrate

## 3. Step-by-step calculation

### Component A: Contract creation identification

- **Purpose**: Identify the initiation of new accounts on the network corresponding to contract deployments.
- **Logic**: Data is filtered from the `system` pallet for `NewAccount` events where an extrinsic ID is present. The contract address is extracted from the first element of the event data. This process captures the creation of account structures required for contract hosting on the Substrate layer.
- **Key fields**: `event_pallet` (`system`), `event_method` (`NewAccount`), `contract_address`

### Component B: Deployer address attribution

- **Purpose**: Attribute each contract creation to the specific signer address that initiated the deployment.
- **Logic**: `Executed` events are parsed from the `ethereum` pallet to identify the transaction signers and EVM-related hashes. The signer address is extracted from the first position of the event data. These records are joined to the contract creation data identified in Component A using the unique extrinsic ID. This linkage ensures that the Substrate-level account creation is correctly mapped to the originating deployer address.
- **Key fields**: `event_pallet` (`ethereum`), `event_method` (`Executed`), `signer_address`, `extrinsic_id`

### Component C: Daily distinct aggregation

- **Purpose**: Calculate the final count of unique deployers per day.
- **Logic**: The count of distinct deployer addresses is calculated on a per-day basis. Only successful deployments with valid signer attribution are included in the final count. The metric is aggregated using UTC day boundaries, and any days with no activity are filled with zero values to ensure a continuous time series.
- **Key fields**: `deployer_address`, `timestamp`

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

Unique addresses that deployed at least one smart contract.

Contract deployers

Blockchains (L2)

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

Astar is a collective driving web3 adoption by connecting people through blockchain technology, business innovation, decentralized applications, and seamless digital experiences in the Polkadot ecosystem. Astar was founded by Sota Watanabe and launched in 2021.

ASTR tokenholders own and govern the protocol. Part of the transaction fees is burned (revenue). Astar’s investors include Binance, Polychain Capital, Crypto.com, etc.

Astar Substrate

Contract deployers

Contract deployers

Chain breakdown