Proof of Interaction - Tracks user interactions for on-chain engagement.

The Proof of Interaction (PoI) smart contract is designed to track and record user interactions on the blockchain, providing verifiable, timestamped proof of on-chain engagement. This contract is simple and lightweight, automatically logging each interaction, whether it's a function call, ether transfer, or any other form of engagement.

By using events to capture these interactions, the contract ensures transparency and immutability, with all logs publicly available on the blockchain. This makes it especially useful for decentralized applications (DApps), token ecosystems, and community-driven platforms, where tracking and rewarding user activity is important.

The contract operates without the need for a constructor, inputs, or complex configurations. Every call to the logInteraction function, or any incoming transaction to the contract, triggers an event with the user’s address and a precise block timestamp. These logs serve as irrefutable evidence of interaction, offering transparency and a reliable way to track active participation in decentralized ecosystems.

Use cases for PoI include monitoring engagement in NFT projects, rewarding active participants in decentralized communities (DAOs), tracking user activity in gaming platforms, and ensuring fairness in reward distribution systems. This provides an efficient way to capture meaningful on-chain actions, encouraging participation and creating a transparent record of user engagement.