"Proof of Interaction is a Solidity contract that logs user interactions with timestamps on the blockchain."
"Proof of Interaction is a simple yet efficient Solidity smart contract designed to track and log user interactions on the blockchain. By calling the logInteraction function, users can record their Ethereum addresses and the corresponding block timestamps, creating an immutable, on-chain record of each interaction. This contract is publicly accessible and requires no input parameters, making it easy to use and suitable for various applications where tracking user engagement is important. The interaction records are stored in a dynamic array, allowing for easy access and verification of past interactions."