LogiChain

Problem Statement

LogicChain is a decentralized logistics and supply chain tracking platform that brings transparency, security, and efficiency to the movement of goods. Traditional logistics systems are often opaque, centralized, and prone to errors or fraud. LogicChain solves this by leveraging Hedara’s fast, secure, and scalable distributed ledger to record every step of a shipment, ensuring an immutable and verifiable history of goods.To store shipment data securely and cost-effectively, LogicChain integrates Filecoin, a decentralized storage network. Every logistics record ike shipping manifests, proof-of-delivery is stored on Filecoin, ensuring tamper-proof, long-term data availability without relying on centralized servers.Key Features:Immutable Tracking: Each shipment event is recorded on Hedara, providing an auditable, transparent ledger.Decentralized Storage: Filecoin ensures that all shipment data is securely stored off-chain and retrievable at any time.Global Supply Chain Visibility: Businesses, regulators, and customers can verify the status of goods in real-time.Tamper-Proof Records: Using blockchain and decentralized storage eliminates disputes and fraud.Future-Ready: Supports IoT sensor integration for real-time environmental and location tracking.Tech Stack:Hedara: Distributed ledger for recording shipment events.Filecoin: Decentralized storage for shipment documents and metadata.Next.js + Tailwind CSS: Frontend dashboard for tracking shipments and interacting with the ledger.Node.js / Hedara SDK: Backend integration for submitting and retrieving shipment data.Supabase: Backend-as-a-Service for authentication, real-time database, and API management.Impact: LogicChain empowers logistics companies, suppliers, and end-users by making supply chains transparent, accountable, and secure. By combining Hedara’s DLT and Filecoin’s decentralized storage, LogicChain addresses inefficiencies in traditional systems and introduces trustless, verifiable logistics for the modern world.

Solution

LogicChain is built as a full-stack decentralized logistics platform combining Hedara, Filecoin, Supabase, Next.js, Tailwind CSS, and Node.js. Here’s the breakdown of how everything is pieced together:Frontend (Next.js + Tailwind CSS):The dashboard is built with Next.js for fast server-side rendering and dynamic routing.Tailwind CSS provides a lightweight, responsive design system for building a clean, modern UI.Users can view shipment statuses, verify history, and track items in real-time through the intuitive dashboard.Backend (Node.js + Hedara SDK + Supabase):Node.js acts as the backend server, handling API requests from the frontend.The Hedara SDK is used to submit and retrieve shipment events from the Hedara distributed ledger. Every shipment update—like pickup, in-transit, or delivery—is immutably recorded on Hedara.Supabase manages user authentication, roles (admin, logistics partner, customer), and a real-time database to cache shipment metadata for faster UI rendering.Decentralized Storage (Filecoin):Shipment documents, proofs-of-delivery, invoices, or IoT sensor data are uploaded and stored on Filecoin, ensuring tamper-proof and decentralized storage.Hedara stores pointers (CIDs) to Filecoin data, combining blockchain immutability with scalable off-chain storage.Integration Workflow:When a shipment is updated, the frontend sends the data to the backend.The backend stores shipment files on Filecoin, retrieves the CID, and submits the shipment event to Hedara along with the CID.Supabase provides real-time updates to the dashboard so users see new shipment events instantly.Hacky / Notable Bits:Implemented a lightweight caching layer in Supabase to reduce Hedara read calls, optimizing performance.Used dynamic CID linking to tie multiple documents to a single shipment event efficiently.Leveraged Hedara testnet + Filecoin devnet during development for cost-effective testing while maintaining real-world decentralization principles.Outcome: By combining Hedara’s fast, secure ledger with Filecoin’s decentralized storage and Supabase’s real-time database, LogicChain delivers a trustless, transparent, and highly performant logistics tracking system—all in one cohesive platform.