A secure digital evidence preservation system for an iot-enabled smart environment using ipfs, blockchain, and smart contracts. - Deepti Rani; Nasib Singh Gill; Preeti Gulia; Mohammad A. Yahya; Tariq Ahamed Ahanger; Mohamed M. Hassan; Fethi Ben Abdallah; Piyush Kumar Shukla (Peer Peer Netw. Appl., 2025)