Can you draw a blockchain based system architecture diagram for water management system. Using similar structures below $1.$Offchain Storage $($IPFS$)$: Stores existing water data, which is fed to the AI layer for analysis$\mathrm{.}2.$ AI Layer: Conducts anomaly detection and demand prediction based on the water data, then sends the analysis to the smart contract for adjustment$\mathrm{.}3.$Smart Contract: Executes the water allocation with multi$-$signature authorization and stores the allocation data on$-$chain$\mathrm{.}4.$Stakeholders Dashboard:Displays allocation and alert data automatically, allowing stakeholders to monitor the system without intervention$\mathrm{.}5.$Regulatory Database: Stores and queries allocation data for compliance and auditing purposes.