Authors: N.Akshaya Reddy, G.Bala Ruthik Raja Reddy, K.Nithya Sri, Shaik Inthiyaz
Abstract: This research introduces a Blockchain-Based Water Management System designed to boost transparency, efficiency, and trust in how water is distributed and monitored. The system uses IoT-based water sensors to gather real-time information on how much water is used, how much is flowing, and whether there are leaks. This data is securely stored on a blockchain network. Smart contracts are used to automatically track water use, handle billing, and control access, making sure the data can't be changed or tampered with. A decentralized ledger means we don’t rely on a single authority, which stops people from altering data—this ensures a fair share of water for everyone involved. A web-based dashboard gives authorities and consumers real-time data, helping them make better decisions and save water. Testing shows data is sent securely, transactions are validated reliably, and there's more transparency than traditional systems. This system has strong potential for managing water resources sustainably in smart cities and rural areas.