# Hydration EVM Contracts deployed Methodology

## 1. Overview

Contracts deployed measures the number of unique smart contracts published onchain on Hydration EVM. This metric serves as a proxy for the volume of new applications and infrastructure launched within the ecosystem. It provides insight into developer activity and the growth of the programmable layer of the Hydration network.

## 2. Data sources

- **Blockchain events**: `Executed` events from the `ethereum` pallet, covering Hydration

## 3. Step-by-step calculation

### Component A: Extraction of EVM deployment events

- **Purpose**: Identify successful contract creations within the Hydration EVM environment.
- **Logic**: `Executed` events are parsed from the `ethereum` pallet. Filtering is applied to include only successful transactions with valid extrinsic identifiers. The unique address of the deployed contract and the address of the deployer are extracted from the event data fields.
- **Key fields**: `event_data`, `event_method`, `event_pallet`, `success`

### Component B: Identification of first occurrences

- **Purpose**: Ensure that each smart contract is only counted once at the time of its initial deployment.
- **Logic**: The earliest deployment timestamp for each unique contract address is identified across the entire history of the chain. This prevents subsequent interactions or system-level updates associated with an existing contract address from being miscounted as new deployments.
- **Key fields**: `contract_deployed`, `block_timestamp`

### Component C: Daily aggregation and normalization

- **Purpose**: Consolidate deployment data into a standardized daily time series.
- **Logic**: The distinct count of new contract addresses is aggregated by day using UTC boundaries. The resulting values are assigned to the Hydration EVM product and normalized to a daily grain. Missing dates in the time series are filled with zero values to maintain data continuity.
- **Key fields**: `timestamp`, `contracts_deployed`

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

Unique smart contracts published onchain.

Contracts deployed

Blockchains (L2)

Collators aggregate parachain transactions block candidates and producing state transition proofs for validators based on those blocks.

Hydration is a Polkadot parachain specialized in trading, lending, and stablecoin issuance.

HDX holders own and govern the protocol. Hydration’s investors include KR1 plc, Hypersphere, etc.

Hydration EVM

Contracts deployed

Contracts deployed

Chain breakdown