DePHY is an all-encompassing DePIN framework designed to streamline and reduce the cost of DePIN project development. It offers open-source hardware solutions, a decentralized messaging layer, and automated tokenomics execution for DePIN projects, establishing a verifiable Web3 Infrastructure by bridging the physical world to the Web3 Space. DePHY achieves verifiability through a trust-based Device ID (DID) system, hardware wallet-level security, and decentralized P2P networking via Nostr, ensuring authenticity, security, and composability in the decentralized off-chain network for DePIN.